INFRARED PROJECTOR Russian patent published in 2007 - IPC F21S8/00 

FIELD: infrared projectors.

SUBSTANCE: infrared projector contains, optically connected, laser emitter and objective, first control block, output of which is connected to laser emitter. Device additionally contains deflecting system, located at the output of objective and consisting of mirror with rotation axis, position indicator, rotation mechanism and second control block. Mirror rotation axis is kinematically connected to position indicator, output of which is connected to first input of second control block, output of which is connected to rotary mechanism, which is kinematically connected to rotation axis of mirror which is optically connected to objective, and heat stabilization system containing temperature indicator, controller, power supply unit, thermoelectric module with heat draining system and a base. Laser emitter, temperature indicator and thermoelectric module are positioned on base for ensuring thermal contact between them. Output of temperature indicator is connected to input of controller, first, second and third outputs of which are connected respectively to input of first control block, to power supply unit input and to readiness indicator input. Power supply unit output is connected to input of thermoelectric module, while first control block is made in form of controlled current generator, and laser emitter is mounted close to focal plane of objective. Infrared projector additionally contains radiation power alteration controller, which is connected to second input of first control block.

EFFECT: expanded functional capabilities, increased stability of laser radiation output parameters and increased lifetime of device.

2 cl, 2 dwg