TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

HOLOGRAM [100 records]

Record 1 2025-01-06

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Second, there is liquid-surface holography, in which, usually, the liquid surface, disturbed by both the scattered and the reference acoustic field, is used to reflect light which is made to produce the final image; the hologram itself is at the surface.

Key term(s)
  • liquid surface holography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 1

Record 2 - external organization data 2024-11-28

English

Subject field(s)
  • Compartment - National Occupational Classification (NOC)
Key term(s)
  • hologram imprinting machine tender

French

Domaine(s)
  • Tiroir – Classification nationale des professions (CNP)

Spanish

Save record 2

Record 3 2024-01-27

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

A later solution [to the lighting issue was an] ’edge-lit’ hologram … which employed a prism to channel light into a glass-plate hologram at the optimal angle to reconstruct the three-dimensional image.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 3

Record 4 2024-01-27

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The upper part of the hologram records the view of the upper part of the object, the right-hand side of the hologram, the right side of the object, and so on. It is like looking through a window at the object itself; and if you reduce the size of the window(e. g., by breaking the hologram into small pieces and looking through a single piece) … Such a hologram is often termed the master or primary hologram as distinguished from a copy or transfer hologram made from it.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 4

Record 5 2024-01-27

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Hologramme [...] appliqué sur une surface en relief [et] réfléchissante, lui permettant de diffracter la lumière.

Spanish

Save record 5

Record 6 2023-12-14

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

If a plane-wave reference is used for recording and for reconstruction, then the reconstructed image will coincide with the magnified image of the object in amplitude, although the phase will contain the curvature due to the imaging lens. Alternatively, holographic interference of the object and the plane-wave reference can be formed first and its magnified image projected near the hologram plane...

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 6

Record 7 2023-05-31

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Spectroscopic holography refers to techniques in which the detected hologram contains information about specific species in the medium under study. In general, at least two lasers are required with wavelengths chosen carefully to fit the interaction process utilized.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 7

Record 8 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The high-efficiency hologram … uses a metasurface as a phase modulator to generate reflective hologram … rather than the transmitting image that was formed with light propagating through four layers of metal structures.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 8

Record 9 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 9

Record 10 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

... in the reception mode, the maximum coupling occurs at the incoming angle of 30 degrees, which confirms the accuracy of the design. To confirm the accuracy of the analytical results, a one-dimensional hologram is designed by exploiting the subwavelength quasi-periodic patches,...

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 10

Record 11 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

[Scientists have] adopted the electrical ladder-network model to find an expression for the diffraction efficiency of the reflection phase hologram, which is actually dependent on the emulsion thickness.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 11

Record 12 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

A hologram [that] gives shifted images of the logic array to provide nearest neighbour interaction for image processing applications.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 12

Record 13 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 13

Record 14 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

It may be interesting to know that the best image resolution in a phase in-line hologram … was obtained with the direct bleaching technique(bromine-methanol), where no ion diffusion takes place during processing.

Key term(s)
  • phase inline hologram
  • inline phase hologram

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 14

Record 15 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

... the reception of radio signals from orbital satellites at a single ground-based antenna allows synthesizing a one-dimensional hologram. In this case, since the irregularities have certain horizontal dimensions, the results obtained from a linear hologram will depend on the one-dimensional parameters of the irregularities.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 15

Record 16 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

In essence, [optical coherence tomography(OCT) ] provides a multifrequency hologram and the refocusing method may be applied frequency-by-frequency to effectively move the focal plane even to planes outside the Rayleigh range. However, the image in the plane of the original focus is then out of focus.

Key term(s)
  • multi-frequency hologram

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 16

Record 17 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

First, a digital hologram representing a given three dimensional(3D) object is down-sampled based on a fix, jitter down-sampling lattice. Second, the down-sampled hologram is interpolated, through pixel duplication, into a low resolution hologram that can be displayed with a low-resolution spatial light modulator(SLM).

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 17

Record 18 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

A composite hologram in which a separate hologram is recorded for each input with the reference wave at a new angle of incidence.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 18

Record 19 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

It is very recently reported that high resolution electron-holography does indeed show that the contrast in the holographic side-band images is three to five times higher than the contrast in the completely unfiltered centre-band image. ... Any strictly elastic diffuse scattering from defects or amorphous surface films would still be present in the side-band holograms.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 19

Record 20 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

A photograph, as a two-dimensional recording of an image formed by a lens, can be blurred from the start; the sharpness of the image is not affected by the light source used to illuminate it. The situation, however, is completely reversed for an optical hologram, which is a recording of a stationary quantum interference pattern, not an image.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
CONT

L'acquisition d'un hologramme optique s'effectue à l'aide d'un processus d'interférence entre deux faisceaux lumineux issus d'un laser.

Spanish

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Record 21 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Extraction of the phase encoded in optically stored heterodyne holograms is thus possible with the two tested variants of [phase-shifting interferometry(PSI) ]... The heterodyne hologram practically behaves as a beam splitter with memory, ready to be a part of a phase-shifting interferometer.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 21

Record 22 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The upscaling quality of holograms was verified by comparing the upscaled hologram with the high-resolution hologram. The hologram image upscaled with deep learning network provides better quality in diffraction patterns and reconstruction compared with conventional upscaling methods.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 22

Record 23 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

A nonlinear hologram enables to record the amplitude and phase of a waveform by spatially modulating the second order nonlinear coefficient, so that when a pump laser illuminates it, this waveform is reconstructed at the second harmonic frequency.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 23

Record 24 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 24

Record 25 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Fringes give "contours" measuring the displacement that the object underwent between the two exposures. A variation on this procedure is to make a single-exposure hologram, process it, and return it to the place where it was made with the original object still in place.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 25

Record 26 2023-02-01

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Over the years, [scientists] have demonstrated that one single planar hologram can reach a high resolution(down to 0. 015 nm) in a very narrow spectral range(1 nm) or be designed to work over multiple narrow bands(up to 4).

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 26

Record 27 2022-08-15

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

A hologram exhibiting optical power in transforming an object point to a conjugate image point.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 27

Record 28 2022-08-12

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

A phase-modulation hologram results when the hologram modulates the phase of the illuminating wave such that the resulting wave has relative phase shifts...

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 28

Record 29 2022-08-12

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

… the diffractive characteristics of a polychromatic hologram can be adjusted by tuning the applied index modulation with respect to the recording parameters.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 29

Record 30 2022-08-08

English

Subject field(s)
  • Computer Memories
  • Information Processing (Informatics)
  • Optics
CONT

... if a hologram is read out by one of its stored data, then its associated output corresponding to the other will be recalled. In principle, the holographic associative memory utilizes a correlation and a convolution in order to identify and to reconstruct a desired image and/or pattern.

French

Domaine(s)
  • Mémoires (Informatique)
  • Traitement de l'information (Informatique)
  • Optique

Spanish

Save record 30

Record 31 2022-08-05

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

To accelerate optical time reversal based on on-axis interferometry, the quasisingle-shot method was proposed and widely used in many fast [digital optical phase conjugation(DOPC) ] systems for focusing through scattering media. However, this method needs to acquire two images for optical time reversal : one image for the reference beam, and the other one for the interferometric hologram.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 31

Record 32 2022-08-04

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

[The new approach] takes a [three-dimensional(3D) ] object as a basic element and then adds the holograms of all the 3D objects of one 3D scene together to obtain the ultimate hologram. The superposed hologram is able to reconstruct entire 3D objects.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 32

Record 33 2022-08-03

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

A hologram is an analog information carrier. Perspective information varies continuously across the spatial extent of the hologram. … Consideration of the psychophysics of human sight led to the reduction of the discrete hologram to a horizontal-parallax-only version, greatly reducing the nonessential and redundant information content of the discrete hologram.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 33

Record 34 2022-06-22

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Incoherent digital holography refers to a group of methods, in which a 3D [three-dimensional] scene, illuminated by incoherent light, is recorded onto a two-dimensional digital hologram. Since the hologram is stored digitally in the computer, the image of the scene is usually reconstructed from the hologram by a digital computation.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 34

Record 35 2022-06-14

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Conoscopic holography was a method suggested to obtain the incoherent hologram without spatially dividing the incident object wavefront into two by utilizing the birefringent crystal slap.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 35

Record 36 2022-06-14

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

There are two types of representative IDH [incoherent digital holography] techniques : IDH with a structured illumination and a single photodetector termed optical scanning holography and self-interference IDH. The latter IDH is a technique to obtain an incoherent digital hologram by modulating an incoherent light wave between an object and an image sensor.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 36

Record 37 2022-06-07

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
Key term(s)
  • multi-channel hologram

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Hologramme présentant une série d'images enregistrées à sa surface, dans une succession qui permet, lorsque l'observateur se déplace, de créer une animation.

Spanish

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Record 38 2022-05-31

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The image recorded on the holographic plate is called a hologram of the target, which carries both the amplitude and phase of the returned, scattered beam from the target. The first exposure of the holographic plate by the reference beam results in a reference hologram, while the second exposure by the returned beam imposes all changes of the target to the reference hologram.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 38

Record 39 2022-05-31

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Determining flow velocities from a double-exposure hologram requires particle pairing and the precise extraction of particle positions. This is done by computer-controlled video scanning of the field of particle images in three dimensions.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 39

Record 40 2022-05-31

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

… the enormous amount of calculation in the generation of a complex hologram from a 3D [three-dimensional] object model consisting of many points is a huge challenge and the fast CGH [computer-generated holography] calculation problem has been investigated from different perspectives. Another major concern is that holographic display devices such as spatial light modulators(SLM) usually cannot display both the amplitude and phase part of a complex hologram simultaneously.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 40

Record 41 2022-05-31

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Hologramme dont l'enregistrement est fait alors que l'objet est placé très près de la plaque sensible.

Spanish

Save record 41

Record 42 2022-05-31

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

A phase-only hologram … can be calculated from an object image with various methods such as Gerchberg-Saxton iterative algorithm, error diffusion algorithm, random phase mask method and down-sampling mask method.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 42

Record 43 2022-05-31

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Dolphins and bats have been using their own brand of sonar for millions of years, and both animals interpret their received pattern of signals by a neural network that closely resembles a real-time hologram.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 43

Record 44 2022-05-02

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

In the commonly used segment Fourier transform method for rainbow hologram reconstruction, the computation of 2D [two dimensional] Fourier transform on each hologram segment is very time consuming.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 44

Record 45 2022-04-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

For the acquisition of a single pair of double exposure holograms, a reference hologram … is captured at an initial state of deformation, an acoustic excitation is applied, and a deformed hologram … is captured after a controlled time delay …

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 45

Record 46 2022-04-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

… by this type of hologram deformation, it is possible to retrieve the EFI [extended focus image] of a tilted object, putting all parts of the object in focus in a single constructed image.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 46

Record 47 2022-02-28

English

Subject field(s)
  • Astrophysics and Cosmography
  • Space Physics
CONT

The holographic principle is an emerging notion within physics that the universe we know could be viewed as holographic. A hologram is essentially a means of storing the information for a system in a form that exists a dimension lower, like a 3D image projected from a 2D film.

French

Domaine(s)
  • Astrophysique et cosmographie
  • Physique spatiale

Spanish

Save record 47

Record 48 2021-10-04

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

… the twin-image problem of conventional holography is a direct consequence of the fact that the hologram is recorded on a two‑dimensional surface. Like optical volume holography, which overcomes this problem by recording a diffraction pattern on a thick photographic emulsion, multienergy [holographic crystallography] HXT does so by recording the pattern in a volume of reciprocal space.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 48

Record 49 2021-10-04

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Recently, some methods for generating CGH [computer‑generated holograms] from three-dimensional objects have been proposed. … There are three types : pure amplitude hologram, pure phase hologram, and complex hologram

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 49

Record 50 2021-09-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Solar holograms are those holograms that are designed and used to take solar energy and divert, concentrate, disperse, reflect, or otherwise modify it for a variety of purposes.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Hologramme dont la restitution de l'image se fait avec la lumière du soleil.

Spanish

Save record 50

Record 51 2021-09-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Under the pixelated performance of an SLM [spatial light modulator], an optical trap focuses at a distance … by displaying the following phase profile onto the liquid crystal plane … One immediate result of hologram discretization is the decrease in trap steering efficiency.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 51

Record 52 2021-09-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

A thick transmission hologram is angular sensitive. Hence[, ] the lateral location of the input is critical, which means it is highly space variant.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 52

Record 53 2021-09-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The entire system delivers single pixel accuracy for more than 95% of the generated displacement vectors. The current system records, reconstructs, digitizes and erases a particle field hologram in less than 3 [minutes]. This allows for large-scale repetitive measurements(more than a hundred holograms [in] a single day), thereby enabling the acquisition of three-dimensional flow statistics.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 53

Record 54 2021-09-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Another way of making the original photographs for mastering is to take the camera round the subject at a constant distance … The photographs are combined in the same way, but this time the finished hologram is part of a cylinder, with the image of the subject at its center. Cylindrical stereograms are a kind of one-step rainbow hologram.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 54

Record 55 2021-09-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

A hologram that uses a mixture of gelatin, water, and ammonium dichromate as an emulsion.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 55

Record 56 2021-09-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

A hologram made with electron waves rather than visible light.

CONT

An optical reconstruction method is the direct implementation of Gabor’s original holography idea in which the wavefronts of electron waves are replaced by those of light waves … The electron holograms are regarded as diffraction gratings, and laser lights are irradiated on them as reconstruction waves.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 56

Record 57 2021-09-08

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The production of cylindrical holographic stereograms, or multiplex holograms, requires the use of a large, low [f number] cylindrical lens to form a line image on the holographic film.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 57

Record 58 2021-08-30

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

… in cylindrical holography, the vertical property is the same as that of the planar hologram : neither the vertical viewing zone nor vertical reconstructible size is improved …

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 58

Record 59 2021-08-30

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Optical Telecommunications
CONT

Holographic multiplexing means compression of additional information into the hologram...

French

Domaine(s)
  • Optique
  • Infographie
  • Télécommunications optiques

Spanish

Save record 59

Record 60 2021-08-30

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

… a copy hologram is made by laying a photoresist coated plate in close contact to the original hologram and illuminating the original hologram through the photoresist plate.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Hologramme obtenu par l'enregistrement de l'image de la matrice holographique […] sur l'émulsion d'un deuxième hologramme […]

CONT

Un hologramme de seconde génération peut être du type transmission ou du type réflexion. Il est visible à la lumière blanche.

Spanish

Save record 60

Record 61 2021-08-30

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
  • Acoustics (Physics)
DEF

The recording of sound waves in a two-dimensional pattern(the hologram) and the use of the hologram to reconstruct the entire sound field throughout a three-dimensional region of space.

CONT

Acoustical holography involves reconstruction of the sound field that arises due to radiation of sound at a boundary, such as the vibrating body of a violin, the fuselage of an aircraft, or the surface of a submarine.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
  • Acoustique (Physique)

Spanish

Save record 61

Record 62 2021-08-30

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Optoelectronic reconstruction can be realized by using an electronic addressing reflective liquid-crystal display(LCD) spatial light modulator. A binary digital hologram from the computer is loaded on a LCD panel. A clear image can be observed in the distance by illuminating a reference light from a laser source to the liquid-crystal panel.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 62

Record 63 2021-08-30

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The Fourier-Fraunhofer hologram, in which the object and the reference source are at infinity in the recording step, is the only practical case where an aberration-free image may be reconstructed from a plane hologram when the reconstruction source is not at the same place as the reference source relative to the hologram.

PHR

binary Fourier hologram

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Hologramme formé par un objet plat situé dans le point focal d'une lentille.

Spanish

Save record 63

Record 64 2021-08-30

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The curved multiplexing based on a curved hologram can improve FOV [field of vision] and information capacity...

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 64

Record 65 2021-08-20

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Hologramme de réflexion obtenu à l'aide d'un faisceau laser unique, servant à la fois de faisceau objet et de faisceau de référence.

Spanish

Save record 65

Record 66 2021-08-17

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The cylindrical hologram has a 360 [degree] look-around property and can be observed from any direction.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 66

Record 67 2021-08-17

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Œuvre holographique comportant plusieurs hologrammes, juxtaposés ou superposés, destinés à former un ensemble mural ou tridimensionnel.

Spanish

Save record 67

Record 68 2021-08-17

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Detour phase is the design principle … and is the core concept behind binary holograms, where the amplitude and the phase of the optical field are imposed by an array of apertures on an opaque screen. In a typical binary hologram, the dimension of each aperture sets the amount of light passing through it.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 68

Record 69 2021-08-17

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Hologramme ayant été exposé plusieurs fois à la lumière du laser.

Spanish

Save record 69

Record 70 2021-08-16

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

Computer-generated holograms may be produced using different forms of [wave-front] encoding methods. In the following section, three of the most representative [methods] are reviewed : detour-phase hologram, kinoform, and binary computer-generated hologram.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 70

Record 71 2021-08-16

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

An interferogram in which fringes can be seen with the naked eye.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 71

Record 72 2021-08-16

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

A major step forward has now been made, whereby aerosol holograms can be measured automatically by interfacing the Quantimet 720 Image Analysing Computer with a new holographic reconstruction configuration.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 72

Record 73 2021-07-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Remote Sensing
DEF

A technique in which a hologram of a vibrating object is recorded using a sequence of light pulses that are triggered during the vibration cycle.

French

Domaine(s)
  • Optique
  • Infographie
  • Télédétection

Spanish

Save record 73

Record 74 2021-07-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 74

Record 75 2021-07-29

English

Subject field(s)
  • Scientific Instruments
  • Optics
  • Computer Graphics
  • Remote Sensing
CONT

… the output of any real-time holographic interferometer contains a term which is a function of the phase differences introduced in any beam of the hologram between the recording and reconstructing steps in addition to those variations in intensity which result from the intensities of the beams themselves.

French

Domaine(s)
  • Instruments scientifiques
  • Optique
  • Infographie
  • Télédétection

Spanish

Save record 75

Record 76 - external organization data 2021-03-18

English

Subject field(s)
  • Compartment – Nomenclature 4.0
  • Museums and Heritage (General)
OBS

hologram : an item in the "Documentary Objects" class of the "Communication Objects" category.

French

Domaine(s)
  • Tiroir – Nomenclature 4.0
  • Muséologie et patrimoine (Généralités)
OBS

hologramme : objet de la classe «Objets documentaires» de la catégorie «Objets de communication».

Spanish

Save record 76

Record 77 2021-01-17

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

[A composite repeat hologram is created when] a holographic exposure is made on a surface, then, before the hologram is removed or developed, the surface is slightly tilted and a repeat hologram is made, superimposed on the first hologram.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 77

Record 78 2021-01-17

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

A hologram made with a real image as object.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
CONT

L'hologramme image est enregistré dans le plan focal image de la lentille [...] Cet enregistrement est utilisé lorsque l'objet n'est pas trop profond.

Spanish

Save record 78

Record 79 2021-01-16

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The image is created by splitting [it] into vertical slit-shaped component holograms, and then exposing them in order. Each component hologram is collected in the left-right direction(parallax direction) … As a result, each component hologram has a two-dimensional image recorded in it. But because there is appropriate parallax information in each image that is exposed onto the component hologram, the entire photograph looks like a 3-D image …

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 79

Record 80 2021-01-16

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

… the red component hologram can be obtained by adding all of the holograms [calculated from the red components] of all polygons …

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 80

Record 81 2021-01-16

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

[A hologram] that takes up selected parts of the viewing light so that the rest can go into making the image.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 81

Record 82 2021-01-16

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

In a bleached hologram … it is the great reduction in loss of light through absorption that is important …

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 82

Record 83 2021-01-16

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

A hologram in which the image is viewed only by laser … light.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 83

Record 84 2020-12-18

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

An extension of the kinoform approach is the "referenceless on-axis complex hologram"(ROACH), which encodes both the amplitude and phase of the Fourier coefficients in separate layers of color film.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 84

Record 85 2020-12-18

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

[...] a hologram recorded with a point source acting as a spherical reference located in the same plane as that of the object and reconstructed later using a plane wave.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 85

Record 86 2020-12-04

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
DEF

A hologram that must be illuminated by a wave exactly like the reference wave if the image of the object is to be seen.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 86

Record 87 2020-12-04

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 87

Record 88 2020-12-04

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 88

Record 89 2020-11-27

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

If the two interfering beams are travelling in substantially the same direction, the recording of the interference pattern is said to be a Gabor hologram or in-line hologram.

Key term(s)
  • inline hologram

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

[Hologramme] enregistré à partir de la disposition sur un même axe du faisceau objet et du faisceau de référence (un seul rayon servant aux deux).

Spanish

Save record 89

Record 90 2020-11-27

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 90

Record 91 2020-11-27

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 91

Record 92 2020-11-26

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Hologramme réalisé à l'aide d'une lentille qui permet à l'image enregistrée d'apparaître dans un espace chevauchant l'avant et l'arrière du plan du support holographique, entre espace réel et espace virtuel.

Spanish

Save record 92

Record 93 2020-11-26

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 93

Record 94 2020-11-26

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 94

Record 95 2020-11-26

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 95

Record 96 2020-11-26

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 96

Record 97 2020-11-26

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

... the field of view(FOV) of a plane hologram is limited and can’t meet the display requirements of a large view angle...

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 97

Record 98 2020-11-26

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The synthesized intensity-based [orthographic projection images] are then multiplied by the corresponding phase functions and combined to form a digital hologram(also known as an integral hologram) of a 3D object under illumination.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
DEF

Hologramme de transmission visible à la lumière blanche, de nature stéréographique et de forme cylindrique […]

Spanish

Save record 98

Record 99 2020-11-26

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 99

Record 100 2020-11-26

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The typical transmission hologram is viewed with laser light, usually of the same type used to make the recording. This light is directed from behind the hologram and the image is transmitted to the observer's side.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
CONT

Il existe deux types d'hologrammes : les hologrammes par réflexion, qui sont observables avec une lumière blanche (lumière du soleil ou d'une lampe), et les hologrammes par transmission qui sont seulement observables en lumière monochromatique et cohérente (lumière laser).

Spanish

Save record 100

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