Translational electromagnetic camera shutter for variable apertu
Transparent screen, projection display device, and method of...
Ultraminiature lens shutter camera and lens barrel thereof
Updating software within a telecommunications switch without int
Vane driving device
Vane driving device using a blade as a gear rotation...
Variable-power optical system and electronic device using same
Vibrating device and image equipment having the same
Video camera monitor shield
Visual exposure indicating system
Zoom lens barrel with shutter mounting unit