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MICROSCOPE OCULAR [7 records]

Record 1 2025-06-25

English

Subject field(s)
  • Visual Disorders
CONT

Photic retinopathy is a generalized term for light-induced retinal damage. It is most often due to inadvertent exposure. Examples include retinal damage induced by solar viewing or the operating microscope. The mechanism is typically photochemical, and this may be enhanced by elevated tissue temperature and increased blood oxygen tension.... The extent of retinal injury and the likelihood of visual recovery depend on multiple factors, including the location and area of exposed retina, the duration, intensity, and spectrum of the light source, and host susceptibility factors, such as age, nutritional status, ocular pigmentation, core temperature, clarity of ocular media, and pre-existing retinal disease.

OBS

Solar retinopathy is an example of photic retinopathy.

French

Domaine(s)
  • Troubles de la vision
OBS

La rétinopathie solaire est un exemple d'une rétinopathie photique.

Spanish

Save record 1

Record 2 2016-02-25

English

Subject field(s)
  • Sciences - General
  • Optics
  • Biological Sciences
  • Botany
CONT

The cultures were studied by light microscopy unstained or after staining with ruthenium red (1%) or alcian blue (1%) ...

OBS

light microscope : An instrument used to obtain an enlarged image of a small object, utilizing visible light; in general it consists of a light source, a condenser, an objective lens, and an ocular or eyepiece, which can be replaced by a recording device.

French

Domaine(s)
  • Sciences - Généralités
  • Optique
  • Sciences biologiques
  • Botanique
CONT

Appareil de Golgi. [...] En microscopie photonique il apparaît différemment suivant qu'on l'observe dans des cellules d'Invertébrés ou de Vertébrés. [...] La microscopie électronique a permis de préciser sa forme et l'a montré présent dans les cellules animales et végétales.

OBS

microscope photonique: Le microscope ordinaire à lumière visible.

PHR

Microscopie optique classique en champ lointain.

Spanish

Campo(s) temático(s)
  • Ciencias - Generalidades
  • Óptica
  • Ciencias biológicas
  • Botánica
PHR

Microscopía óptica avanzada.

Save record 2

Record 3 2015-02-25

English

Subject field(s)
  • Scientific Instruments
  • Medical and Surgical Equipment
CONT

The drawing apparatus does not project an image originating from the microscope, it rather adds an external image, that of the drawing, to the one normally observed in the microscope eyepiece.... The drawing attachment described here fits easily between the binocular tube and the tube support of a Wild compound microscope. It is a tubular piece, protruding horizontally to the left or the right hand of the observer.... Similar "drawing tubes" for camera lucida viewing with stereomicroscopes are also available. Because each ocular in the stereomicroscope produces an image of the specimen from a different angle, both images together give the impression of 3D-vision, but obviously, the drawing picked up from the drawing tube can be superimposed with only one of the two members of the stereopair.

French

Domaine(s)
  • Instruments scientifiques
  • Équipement médico-chirurgical

Spanish

Save record 3

Record 4 2001-06-11

English

Subject field(s)
  • Medical and Surgical Equipment
  • Optical Instruments
CONT

The objective... forms a real, enlarged image that becomes the object of a second lens system, which is called the eyepiece, or ocular, in the light microscope and the projector lens in the electron microscope.

French

Domaine(s)
  • Équipement médico-chirurgical
  • Instruments d'optique
OBS

Un microscope à transmission comporte une lentille agrandissant l'image fournie par l'objectif.

Spanish

Save record 4

Record 5 1998-10-14

English

Subject field(s)
  • Optical Instruments
DEF

The compound ocular of a microscope, composed of two planoconvex lenses so arranged that the plane side of each is directed toward the observer.

Key term(s)
  • Huyghens' eyepiece
  • Huyghens' ocular

French

Domaine(s)
  • Instruments d'optique
DEF

Oculaire négatif [de microscope] constitué de deux lentilles plan-convexes dont les convexités sont tournées vers l'objectif du système.

OBS

Source MVISI-F : Le nouveau dictionnaire de la vision par Michel Millodot, Médiacom Vision Éditeur, 1997.

Key term(s)
  • oculaire Huygens
  • oculaire d'Huygens
  • oculaire Huyghens
  • oculaire d'Huyghens

Spanish

Save record 5

Record 6 1998-08-28

English

Subject field(s)
  • Optical Instruments
DEF

A microscope in which the body of the microscope, including the objective and the ocular, are below the stage, the illumination for transmitted light is above the stage, and with opaque materials, the vertical illuminator is used under the stage near the objective.

French

Domaine(s)
  • Instruments d'optique
CONT

Le microscope métallographique permet d'examiner des surfaces d'objets opaques [...] Dans [le] modèle [...] dit inversé, la platine est au niveau supérieur; on dépose sur elle l'objet à examiner; l'objectif étant placé sous l'objet, il n'y a pas de mise au point à faire puisque la surface examinée est dans le plan de la platine.

Spanish

Save record 6

Record 7 1975-03-11

English

Subject field(s)
  • Audiovisual Techniques and Equipment
OBS

--a two piece device for connecting the camera to in place of line lens and fits into the ocular adaptor(...) tube section on the microscope.

French

Domaine(s)
  • Audiovisuel (techniques et équipement)

Spanish

Save record 7

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