OPTICAL RADIATION FOCUSING DEVICE Russian patent published in 2022 - IPC G02B9/06 

FIELD: optical technology.

SUBSTANCE: optical radiation focusing device contains a force component made of a single material and consisting of a first biconvex lens facing a smaller radius to the space of objects, and a second plano-convex lens facing the flat surface to the image space. The lenses are mounted with the possibility of changing the distance between them, brought to the air, in the range of 0.3÷0.45 of the focal length of the device. The power component is made of a material with a refractive index of 1.48÷1.53 and an Abbe number of no more than 65 with the ability to work in the radiation range of 500÷1100 nm and adjust the angle of view of 5÷15 degrees.

EFFECT: reduction in the number of optical elements and the ability to adjust the distance between them, the use of universal glass grades, an increase in the diameter of the entrance pupil of the system, ensuring the adjustment of the field of view of the device and the possibility of using a high-speed photodetector.

1 cl, 3 dwg