Atsushi Matsuura

Projection optical system unit and projection-type image display apparatus using the same

Method for manufacturing projection optical system and projection optical system

Aperture stop mechanism, illumination optical system, projection optical system, and projector

Projection type of image displaying apparatus

Projection unit and projection type image display apparatus

Injection mold for forming free-form surface optical element, free-form surface optical element and free-form surface mirror formed by employing the injection mold

Die for molding free-form surface optical element, free-form surface optical element molded by using such die, and free-form surface mirror

Optical device vibrator

Holding structure for optical element including an elastic biasing section and a displacement restricting section (as amneded)

Optical element drive mechanism and projection-type image display device