Design of zoomable laser searchlight based on photoluminescence technology
To increase the light efficiency of laser light sources and further achieve long-distance illumination,a scheme based on combining light technology can be used to design a variable focus laser searchlight.Using the method of arranging multiple blue light LDs into an array and utilizing the light recovery technology of the glass reflector bowl,the optical path design of the laser searchlight was carried out.Simultaneously using a dichroic chip to control the divergence angle,variable focus control of the laser searchlight was achieved.Measure the luminous flux output by the laser module at a current of 1 A.After calculation,the total luminous flux emitted from the fluorescent ceramic chip was approximately 730 lm.In addition,changing the scattering characteristics of the uniform light sheet could achieve control of the focused laser spot.This study achieved the optical path design of a variable focus laser searchlight and the control of the focused laser spot,and used a dichroic chip to achieve mixed white light output of blue and yellow light.The overall optical efficiency of this optical system is high,and it has strong practical significance.
NETL
NSTL
万方数据
