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Steiner was the first company to produce nitrogen-filled binoculars. [6] In 1989, Steiner-Optik received by its own account until then the world's largest order for military binoculars, which included the delivery of 72,000 M22 7×50 binoculars to the US Army. [7] Other innovations by Steiner optics included the first binoculars with bearing ...
Binoculars or field glasses are two refracting telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Most binoculars are sized to be held using both hands, although sizes vary widely from opera glasses to large pedestal-mounted military ...
IOR produces military and civilian-grade optics and associated equipment for export and domestic production. The company is known in North America particularly for its riflescopes (the LPS 4x6° TIP2), binoculars and other sporting optics, which often accompany Romanian military equipment sold on the North American market, such as the PSL rifle.
Galilean type Soviet-made miniature 2.5 × 17.5 monocular Diagram of a monocular using a Schmidt-Pechan prism: 1 – Objective lens 2 – Schmidt-Pechan prism 3 – Eyepiece. A monocular is a compact refracting telescope used to magnify images of distant objects, typically using an optical prism to ensure an erect image, instead of using relay lenses like most telescopic sights.
In addition to the more stereotypical binocular type, folding opera glasses were another common design. They were made mostly of metal and glass, with a leatherette cover for grip and color. Although folding glasses have existed in one form or another since the 1890s, [ 2 ] they were perhaps most popular in the mid-20th century and many from ...
Principle of binocular vision with horopter shown. In biology, binocular vision is a type of vision in which an animal has two eyes capable of facing the same direction to perceive a single three-dimensional image of its surroundings. Binocular vision does not typically refer to vision where an animal has eyes on opposite sides of its head and ...
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