Object cells for hand-held kaleidoscopes
Objective arrangements
Objective for a projection apparatus, and corresponding...
Objective lens exchanging arrangement in a microfilm reader
Objective lens holding arrangement for a micro-film reader
Oblique projection optical apparatus
Oblique projection optical system
Oblique projection optical system
Oblique projection optical system
Oblique projection optical system
Off axis fresnel reflector for liquid crystal display
Off-axis image projecting system
Off-axis image projection display system
Office workspace having a multi-surface projection and a...
Offset projection for slim rear projection displays
Offset projection system
On-vehicle display unit
One piece transparency mount with spring transparency restraint
One-way transparent display systems
Opaque adapter for overhead projector