The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 28, 2017

Filed:

Dec. 29, 2015
Applicant:

Honeywell International Inc., Morristown, NJ (US);

Inventors:

Haidong Xu, Shenzhen, CN;

Jie Zhao, Shenzhen, CN;

Guobin Xu, Shenzhen, CN;

Di Wu, Shenzhen, CN;

Assignee:

HONEYWELL INTERNATIONAL INC., Morristown, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/18 (2006.01); G08B 13/19 (2006.01); G01J 5/34 (2006.01); G01J 5/08 (2006.01); G02B 3/08 (2006.01);
U.S. Cl.
CPC ...
G08B 13/19 (2013.01); G01J 5/0806 (2013.01); G01J 5/34 (2013.01); G02B 3/08 (2013.01);
Abstract

A ceiling mount intrusion detector with arbitrary direction detection capability is provided. The detector can include a pyroelectric sensor and a unitary Fresnel lens such that the unitary Fresnel lens includes a first piece of a first full Fresnel lens and a second piece of a second full Fresnel lens and such that the first piece and the second piece are spliced together. Due to dimensions and location of the unitary Fresnel lens relative to the sensor, the sensor can output a signal indicative of an alarm condition when an object passes in front of the unitary Fresnel lens at any angle relative to the sensor.


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