Can telescope
Carriage for optical elements in an optical sighting device
Carriage for optical elements in an optical sighting device
Case for holding a binocular
Catadioptric optical system
Channel selector for multiple channel sight
Clip-on optical mounting structure
Close-up attachment lens for a binocular
Coarse and fine drives for a monocular
Collapsible binocular
Collapsible field glasses
Collapsible viewing instrument
Collimator/diopter assembly with folder optics for a night visio
Combat vehicle with a hatchway in its armored roof and including
Combined illuminated reticle and focus knob
Combined telescope and autocollimator
Common-aperture optical system incorporating a light sensor...
Compact binoculars for nighttime vision
Compact high resolution panoramic viewing system
Compact keplerian telescope