LandOfFree - US Patents - Listing for Optical: systems and elements

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element

Projection type liquid crystal display unit including orthogonal

Optical: systems and elements – Projection screen – Unitary sheet comprising plural refracting areas

Projection type screen and image projection system

Optical: systems and elements – Projection screen – Border – mask – shade – or curtain

Projection unit

Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface

Projection unit for a head-up display

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element

Projection viewing system

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens and optical projector provided with the...

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens and projection type display device

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens and projection type image display device

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens and projector

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens having a long back focal length

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens system and projection type display...

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens system and projector

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens system and projector

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens system and projector apparatus

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens system and projector apparatus

Optical: systems and elements – Lens – With variable magnification

Projection zoom lens with a long back focal length and exit...

Optical: systems and elements – Single channel simultaneously to or from plural channels

Projection-display apparatus