Patent Number: 7,102,805

Title: Scanner having scan angle multiplier

Abstract: A transmission optical system comprises a concave surface mirror whose reflection surface is directed toward a deflection mirror surface and a transmission lens which is disposed between the concave surface mirror and the deflection mirror surface. A light beam deflected by a deflecting element at a first deflection angle is guided to the concave surface mirror via the transmission lens, and the light beam returned by the concave surface mirror is guided to the deflecting element via the transmission lens. In consequence, the deflecting element reflects the light beam twice, and the light beam is emitted toward a scanning lens at a second deflection angle which is larger than the first deflection angle.

Inventors: Nomura; Yujiro (Nagano-ken, JP), Ikuma; Ken (Nagano-ken, JP)

Assignee: Seiko Epson Corporation

International Classification: G02B 26/08 (20060101)

Expiration Date: 9/05/02018