Invention Grant
- Patent Title: Passive infrared detector
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Application No.: US14799378Application Date: 2015-07-14
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Publication No.: US09885608B2Publication Date: 2018-02-06
- Inventor: Richard N. Claytor
- Applicant: Fresnel Technologies, Inc.
- Applicant Address: US TX Fort Worth
- Assignee: Fresnel Technologies, Inc.
- Current Assignee: Fresnel Technologies, Inc.
- Current Assignee Address: US TX Fort Worth
- Agency: Fortkort & Houston PC
- Agent John A. Fortkort
- Main IPC: G01J5/08
- IPC: G01J5/08 ; G01J5/00 ; G01J1/06 ; G01J5/34 ; G08B13/193
Abstract:
An infrared detector (301) is provided which comprises a pyroelectric detector (303) having first and second sensing elements (345), an aperture stop (311), and a Fresnel lens array (305). The detector may be used as a passive infrared sensor unit for detecting intrusion into large openings.
Public/Granted literature
- US20160033333A1 PASSIVE INFRARED DETECTOR Public/Granted day:2016-02-04
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