Relay variable power optical system and a microscope equipped wi
Releasable/interchangeable fine focus knob for a microscope
Replacement assembly for an image intensifier tube
Replacement assembly for an image intensifier tube utilizing...
Replacement device for microscopes
Replicated relay lens system
Resolution confocal microscope, and device fabrication method us
Reticle apparatus for night vision devices
Reticle assembly for optical sight
Reticle for correcting parallax shift in aiming telescopes
Retractable binoculars attachable to a visor
Retrofittable tubular intermediary element
Revolver assembly of a microscope
Riflescope utilizing gradient index lenses
Ring lens assembly for an optical viewing device
Rod lens system for rigid endoscopes
Rotary image viewing apparatus connected to a rotary mirror...
Rotating slit aperture for scanning microscopy
Rugged optical filter and switch for communication networks