Uncooled long-wave continuous zooming infrared lens

• Main Authors: XIE LIHONG, ZHANG QINGSU, CHEN LINA, LYU YEZHOU
• Format: Patent
• Language: Chinese; English
• Published: 26.07.2022
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The utility model relates to an uncooled long-wave continuous zooming infrared lens. A positive meniscus lens A, a biconcave lens B, a biconvex lens C, a positive meniscus lens D, a negative meniscus lens E and a positive meniscus lens F are sequentially arranged in an optical system of the lens along the incidence direction of light from left to right; when the lens is in a telephoto state, the air space between the positive meniscus lens A and the biconcave lens B is 40.81 mm, the air space between the biconcave lens B and the biconvex lens C is 3.76 mm, the air space between the biconvex lens C and the positive meniscus lens D is 20.45 mm, the air space between the positive meniscus lens D and the negative meniscus lens E is 5.45 mm, and the air space between the negative meniscus lens E and the positive meniscus lens F is 35.15 mm. The device is reasonable in design, compact in structure, moderate in lens structure length, stable and non-offset in the focusing process, high in transmittance, capable of be