Mirror and angle detection apparatus

Details Mirror and angle detection apparatus Mirror and angle detection apparatus

Filed on

2007-09-18

Date issued

2007-09-18

Examiner

Robinson, Mark A. (Department: 2872)

Patent Class

Optical: systems and elements

SubClass

Mirror

SubSubClass

With support

Other Related Categories

C359S877000

Type

Reexamination Certificate

Status

active

Patent number

11195761

Description

ABSTRACT:
A mirror (18) having a specular surface changeable in orientation using an actuator (16) is provided with an angle detection capability at reduced cost. A plate pivot (10) can change its orientation together with the specular surface so as to orient in a direction in which the specular surface is orienting. A slide block (20) is stressed toward the plate pivot (10) so that rotation of the plate pivot (10) causes the slide block (20) to move in a direction substantially perpendicular to the specular surface by an amount proportional to an amount of the rotation of the plate pivot (10). A magnet (26) moves in the direction of movement of the slide block (20) by an amount proportional to an amount of the movement of the slide block (20), and a magnetism sensing element (202) detects magnetism derived from the magnet (26) and outputs a signal corresponding to the amount of movement of the magnet (26).

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patent: 2006/0066968 (2006-03-01), Yamada
patent: 3-112441 (1991-11-01), None
U.S. Appl. No. 11/194,538, filed Aug. 2, 2005, Yamada.
U.S. Appl. No. 11/195,761, filed Aug. 3, 2005, Yamada et al.
U.S. Appl. No. 11/230,570, filed Sep. 21, 2005, Yamada.
U.S. Appl. No. 11/235,211, filed Sep. 27, 2005, Yamada et al.
U.S. Appl. No. 11/235,193, filed Sep. 27, 2005, Yamada et al.

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