- EYEPIECE DIAPHRAGM
- حاجب ضوء عدسة العينية
English-Arabic military dictionary. 2015.
EYEPIECE DIAPHRAGM
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Eyepiece — For the device for looking through a camera, see viewfinder. A collection of different types of eyepieces. An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is… … Wikipedia
Huygenian eyepiece — Huy·ge·ni·an eyepiece .hī gē nē ən , .hȯi , gen ē also Huy·gens eyepiece hī gənz , hȯi n a compound eyepiece used esp. with achromatic objectives that consists of two plano convex lenses separated by a diaphragm with the convex sides facing the … Medical dictionary
History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… … Wikipedia
Optical microscope — Microscope Uses Small sample observation Notable experiments Discovery of cells Inventor Hans Lippershey Zacharias Jans … Wikipedia
Single-lens reflex camera — The single lens reflex (SLR) camera uses an automatic moving mirror system which permits the photographer to see exactly what will be captured by the film or digital imaging system, as opposed to non SLR cameras where the view through the… … Wikipedia
telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… … Universalium
Exit pupil — In optics, the exit pupil is a virtual aperture in an optical system. Only rays which pass through this virtual aperture can exit the system. The exit pupil is the image of the aperture stop in the optics that follow it. In a telescope or… … Wikipedia
Digital single-lens reflex camera — Nikon D700 full frame (FX) digital SLR camera … Wikipedia
photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… … Universalium
optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
Nikon F2 — Photomic (DP 1 prism) Type 35 mm SLR camera Lens mount Nikon F mount Focus manual Exposure manual … Wikipedia
