MULTIPURPOSE LASER PROJECTOR Russian patent published in 2015 - IPC F21S8/00 F21L14/02 

FIELD: electricity.

SUBSTANCE: invention is related to light engineering and may be used for operation as a part of night vision systems. The projector comprises at least two laser emitters based on semiconductor heterostructures with p-n-transitions, optical system for formation of the joint radiation beam with objective lens and a unit of two totally reflecting prisms (TRP) installed at optical axis of the projector, system of thermal stabilization with facilities removing heat to the frame, and electronic power supply and control equipment. Laser emitters (LE) are placed inside the projector frame at distance from each other and are intercoupled optically and coupled to the objective lens by TRP individual for each LE thus forming an optical unit refracting radiation, which forms the joint laser beam of the preset divergence value together with the objective lens. Optical axes are maximally approached to each other, oriented in parallel to optical axis of the projector TRP; they generate matched radiation beams with parallel optical axes directed towards the objective lens. Optical axes of laser emitter may be oriented perpendicular to the projector optical axis. Laser emitters may be performed at heterostructures with p-n-transitions generating radiation in two spectral ranges in near infrared area with potential independent connection to power supply and control equipment.

EFFECT: increased output radiation power of the projector, increased divergence of the beam, expanding functionality due to change in spectral distribution of radiation, improvement of thermophysical parameters.

7 cl, 5 dwg