D-shape laser beam projector

D-shaped waveguide and optical coupler using the waveguide

D.c. reactively sputtered antireflection coatings

Damage evaluation system using optical fibers

Dark field illuminator and collector apparatus and method

Dark field illuminator ringlight adaptor

Dark field microscope and its adjusting method

Darkenable window or door pane

Data link using integrated optics devices

Day and night anti-glare lens for eye spectacles

Day and night sighting system

Day- and night-vision apparatus

Day/night backlight for a liquid crystal display

Day/night mirror

Dc reactively sputtered optical coatings including niobium...

De-centered lens group for use in an off-axis projector

Dead-end for fiber optic shield cable

Decentered noncorrective lens for eyewear

Decentered noncorrective lens for eyewear

Decentered protective eyewear