HIGH-POWER WIDE-ANGLE LENS Russian patent published in 2021 - IPC G02B9/64 

FIELD: photo equipment.

SUBSTANCE: lens can be used as a receiving lens in optoelectronic devices working with photodetector devices such as CCD matrices. The lens contains the first lens in the form of a negative meniscus facing the concavity to the image space, the second one being a biconcave lens, the third one a positive meniscus facing the convexity to the image space, the fourth one a biconvex lens glued to the negative meniscus located in front of the biconvex lens, the fifth and seventh lenses in the form of positive menisci facing the concavity to the image space, between which the sixth planar convex a lens facing the plane to the space of objects is located, a biconcave lens is added behind the fifth lens.

EFFECT: increase in the field of view and the achievement of thermal tunability without moving the lenses or receiver along the optical axis while maintaining high image quality.

1 cl, 10 dwg, 1 tbl