Optical: systems and elements – Lens – Selective wavelength transmitting or blocking
Reexamination Certificate
2007-08-14
2007-08-14
Sugarman, Scott J. (Department: 2873)
Optical: systems and elements
Lens
Selective wavelength transmitting or blocking
C359S586000, C359S587000, C359S589000
Reexamination Certificate
active
11091410
ABSTRACT:
An anti-reflection coating is formed on an optical surface of an optical member for reducing the amount of light rays reflected from the optical surface. For light rays in a wavelength range from 400 nm to 700 nm, the anti-reflection coating has a reflectance of 0.5% or less if the light rays are incident on the optical surface at angles within a range from 0 to 25 degrees, and it has a reflectance of 3.5% or less if the light rays are incident at angles within a range from above 25 degrees to 60 degrees.
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Murata Tsuyoshi
Tanaka Issei
Miles & Stockbridge P.C.
Nikon Corporation
Sugarman Scott J.
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