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searching for Optical flat 6 found (20 total)

Shiro Takatani (4,783 words) [view diff] exact match in snippet view article find links to article

Toposcan / Ireland 2013 at the Tokyo Metropolitan Museum of Photography and optical flat / fiber optic type (2000) at the National Museum of Art in Osaka. In

Andrew Ainslie Common (1,200 words) [view diff] exact match in snippet view article find links to article

military rifle 'scopes. He also pioneered techniques in producing large optical flat mirrors. Gold Medal of the Royal Astronomical Society (1884) Fellow of

Micrometer (device) (4,247 words) [view diff] exact match in snippet view article

Flatness and parallelism are typically measured with a gauge called an optical flat, a disc of glass or plastic ground with extreme accuracy to have flat

Nikonos (4,433 words) [view diff] exact match in snippet view article find links to article

mount first sold in 1952; it is a symmetric Double-Gauss lens behind an optical flat to make the assembly water-tight. This improves lens speed compared with

Common-path interferometer (3,357 words) [view diff] exact match in snippet view article find links to article

to test telescope mirrors. It usually consists of a beam splitter, an optical flat, a biconvex diverger of short focal length and a light source such as

Linden Observatory Complex (6,746 words) [view diff] exact match in snippet view article find links to article

unperforated parabolic glass primary , a 152 mm plano convex secondary and an optical flat which directs the light to an eyepiece assembly on the side of the telescope