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In 1992 Schmidt & Bender Hungaria Optik GmbH in Budapest, Hungary was founded as an independent company by Schmidt & Bender GmbH & Co. KG, Biebertal, Germany. The process of privatisation in Hungary made it possible for Schmidt & Bender to buy the production of precision optics and fibre optics from the government-owned enterprise of the Hungarian Opticai Works (MOM).
Optical lens design is the process of designing a lens to meet a set of performance requirements and constraints, including cost and manufacturing limitations. Parameters include surface profile types (spherical, aspheric, holographic, diffractive, etc.), as well as radius of curvature, distance to the next surface, material type and optionally tilt and decenter.
The Schmidt–Cassegrain design is very popular with consumer telescope manufacturers because it combines easy-to-manufacture spherical optical surfaces to create an instrument with the long focal length of a refracting telescope with the lower cost per aperture of a reflecting telescope. The compact design makes it very portable for its given ...
The few scopes sold to a limited number of law enforcement agencies and even fewer civilians were marked "10x Sniper" and carried a "T" prefix on the serial numbers. Servicing of these scope were taken over by U.S. Optics who also produced their own version and used the nomenclatures MST-100 for the 7.62 scope and MST-150 for the .50 BMG Scopes.
SWAROVSKI OPTIK, headquartered in Absam, Tyrol, Austria is part of the Swarovski group of companies. Founded in 1949, the Austrian company specialises in the development and manufacturing of long-range optical instruments in the premium segment of the market, including binoculars, telescopes (spotting scopes), rifle scopes, range finders and night sight devices.
[5] After World War II Leupold & Stevens began making gun scopes after Marcus Leupold failed to hit a deer with his rifle. His scope fogged up and he is reported to have exclaimed "Hell! I could build a better scope than this!" as the deer bounded off. [3] [4] In 1962, Leupold invented the Duplex Reticle, which most riflescopes now use. [6]
The first ACOG model, known as the TA01, was released in 1987. [3] [4] An example was tested on the Stoner 93 in the early 1990s by the Royal Thai Armed Forces. [5]In 1995, United States Special Operations Command selected the 4×32 TA01 as the official scope for the M4 carbine and purchased 12,000 units from Trijicon. [6]
Light path in a Cassegrain reflecting telescope. The Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas, the main characteristic being that the optical path folds back onto itself, relative to the optical system's primary mirror entrance aperture.
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