Safety detection system for sliding doors

Details Safety detection system for sliding doors Safety detection system for sliding doors

1997-06-23

2000-04-18

Lee, John R.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250216, 49 25, 49 26, 187317, 187392, B66B 1326, E05F 1520

Patent

active

060518294

ABSTRACT:
A safety system for detecting an obstruction approaching closing doors includes a transmitter stack and a detector stack. Each transmitter stack includes a plurality of transmitter three-dimensional lenses. Each detector stack includes a plurality of detector three-dimensional lenses. The three-dimensional lenses are offset from the corresponding optical devices to angle an outgoing or incoming signal. The present invention results in more compact packaging for the safety system and in reduced cost of the assembly therefor.

REFERENCES:
patent: Re30719 (1981-08-01), Mills
patent: 3852592 (1974-12-01), Scoville et al.
patent: 4029176 (1977-06-01), Mills
patent: 4894952 (1990-01-01), Trett et al.
patent: 4976337 (1990-12-01), Trett
patent: 5040331 (1991-08-01), Merendino et al.
patent: 5142152 (1992-08-01), Boiucaner
patent: 5428923 (1995-07-01), Waggamon
patent: 5886307 (1999-03-01), Full et al.
patent: 5925858 (1999-07-01), Full et al.

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