Passive infrared sensor

Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive

Reexamination Certificate

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Details

C250SDIG001

Reexamination Certificate

active

11064485

ABSTRACT:
According to one embodiment, a passive infrared sensor1includes an infrared sensing element4,a pair of lenses5R and5L, and main mirrors22R and22L. A submirror24R is disposed on the main mirror22R. The submirror24R is configured so that, with respect to the main mirror22R, the orientation of the submirror24R is changed by a first predetermined angle in regard to the horizontal direction in a direction away from an attachment surface30at the installation time, and the orientation of the submirror24R is changed by a second predetermined angle in regard to the vertical direction in a direction downward at the installation time. A submirror23L is disposed on the main mirror22L. The submirror23L is configured so that, with respect to the main mirror22L, the orientation of the submirror23L is changed by a first predetermined angle in regard to the horizontal direction in a direction away from the attachment surface30at the installation time, and the orientation of the submirror23L is changed by a second predetermined angle in regard to the vertical direction in a direction downward at the installation time.

REFERENCES:
patent: 4709151 (1987-11-01), Guscott et al.
patent: 6414314 (2002-07-01), Ikeda
patent: 9-101376 (1997-04-01), None
patent: 2000-213985 (2000-08-01), None
patent: 3324271 (2002-07-01), None

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