On-off lamp regulator for an electro-optical sensor

Details On-off lamp regulator for an electro-optical sensor On-off lamp regulator for an electro-optical sensor

H - Electricity

05

B

315/69

H05B 39/06 (2006.01) G05D 25/02 (2006.01)

Patent

CA 1075760

Abstract of the Disclosure The present invention relates to a system for regulating the out- put of a radiation source The system is comprised of a power source ter- minal radiation source connected in circuit with the power source terminal and an electronic switch connected in circuit with the power source ter- minal and the radiation source to control the energization of the radiation source. A radiation sensor is optically coupled and responsive to the radiation output of the radiation source. A feedback circuit is provided, responsive to the radiation sensor and connected to control the electronic switch. The feedback circuit has a first output condition in response to a first value of radiation output from the radiation source. This first condition places the switch into a non-conducting condition to terminate energization of the source. When the radiation sensed reaches a second value below the first value the feedback circuit takes on a second condition that places the switch into a conducting condition. This regulates the radiation source very precisely.

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