Focusable virtual image display

Focusable, color corrected, high performance projection lens sys

Focuser for optical instrument

Focusing a laser beam

Focusing a laser beam

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

Focusing apparatus for a surveying instrument

Focusing apparatus in projection television

Focusing apparatus of a telescopic lens system

Focusing device

Focusing device and imaging device

Focusing device comprising a Luneberg lens including a...

Focusing device for an optical mechanism

Focusing device for digital camera module

Focusing lens control apparatus with automatic and manual focus

Focusing lens for LED

Focusing lens position detection apparatus and an auto-focus sur

Focusing lens system for an optical head assembly

Focusing mechanism for a vision detector

Focusing mechanism using a thin diaphragm