Optical system for creating colored fields of light and...

Organic optical material

Partially ablating laser resistant structures

Particulate obscurant disseminator air source

Passive protection of optically sensitive materials with tarnsit

Photographic color effects lighting filter system

Photoselective absorbing filter and color display equipped...

Plural pass vision system

Production process of composite optical filter

Projector slides for night vision training

Protecting eyes and instruments from short pulse laser radiation

Radiation apparatus

Radiation filter used in welding apparatus

Radiation limiter and optical system incorporating the same

Reflected-light type fluorescence microscope and filter...

Reflective color filter

Reflective color wheel

Reflective fog filter and method

Rotary disk for image-changing light device

Rotary drum type optical filter apparatus