Sensor for washroom device with a non-circular sensing zone

Details Sensor for washroom device with a non-circular sensing zone Sensor for washroom device with a non-circular sensing zone

2005-05-17

2005-05-17

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S559400

Reexamination Certificate

active

06894270

ABSTRACT:
A washroom device sensor uses at least one infrared beam that forms a longitudinal, rather than spot-shaped, sensing zone for detecting the presence of a user. The increased detection area of the longitudinal sensing zone ensures that at least a portion of the beam will contact a user using the washroom device. The beam may be adjustable in two or more directions to generate two or more sensing zones in different positions, allowing optimization of the sensing zone location with respect to a particular washroom device and the anticipated position of the device user.

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PCT International Search Report, dated Jan. 30, 2004.

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