Flip optic adaptor

Flip-out safety reflector

Flip-type mirror mount

Flip-up helmet mount for night vision goggle

Floating lens barrel, lens barrel, and a common lens barrel syst

Floating lens barrel, lens barrel, and a common lens barrel...

Fluid counterbalance for a laser lens used to scribe an...

Focus adjustment apparatus

Focus adjustment assemblies for projection television

Focus driving apparatus with impact resistance

Focus mechanism for varifocal lens

Focus module and method for manufacturing same

Focus servo actuator for moving lens scanners

Focuser for optical instrument

Focusing apparatus for a folded collimating lens in an X-ray ima

Focusing apparatus for a surveying instrument

Focusing apparatus in projection television

Focusing device and imaging device

Focusing device for an optical mechanism

Focusing lens position detection apparatus and an auto-focus sur