1results about How to "Improve focus characteristics" patented technology

The utility model discloses a critical space laser ranging device, including laser emission module and receiving module, laser emission module includes laser, emission lens barrel and emission collimating optical system, and the laser is fixed at the back end of emission lens barrel, and emission collimating optical system is located in emission lens barrel, and emission collimating optical system includes first double concave lens, first double convex lens, second double concave lens and second double convex lens, receiving module includes receiving lens barrel, focusing system and detector, and focusing system is located in receiving lens barrel, and focusing system includes third double convex lens, first meniscus and second meniscus, and the detector is fixed at the back end of receiving lens barrel. The utility model improves laser emitter's output power density and beam quality, realizes the spatial concentrated distribution of energy through the divergence angle of emission beam is suppressed, and the focusing characteristic of echo beam is optimized simultaneously, improves the optical coupling efficiency, thereby enhances the signal to noise ratio of detector receiving signal.