Backlash removing device for stowed lens barrel

Backlash removing mechanism for zoom lens assembly

Backlash removing mechanism for zoom lens assembly

Ball lens assembly

Barrel having cam groove and helicoid

Barrier mechanism and camera

Barrier opening and closing apparatus

Base plate, lens sheet, and projection screen

Bayonet mount and optical apparatus

Bayonet type fixing device having annular members and a zoom...

Beam alignment correction element assembly

Beam alignment correction element assembly

Beam converting optical system

Beam delivery system for laser dark-field illumination in a...

Beam delivery system for laser dark-field illumination in a...

Beam expanding lens

Beam projecting apparatus

Beam projecting device

Beam protecting device

Beam receiving position adjusting device