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Infrared optical system

An infrared optical system and infrared imaging technology, applied in the infrared field, can solve the problems of large energy loss, low spatial resolution, small instantaneous field of view, etc., achieve high energy utilization, improve imaging quality, and improve imaging resolution Effect

Active Publication Date: 2013-04-24
严格集团股份有限公司
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Problems solved by technology

[0014] In order to overcome the shortcomings of the existing dual-mode seeker system, such as relatively small instantaneous field of view, large energy loss, and low spatial resolution, the present invention provides an infrared optical system

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Embodiment Construction

[0030] The technical solutions of the present invention will be further explained below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited.

[0031] Such as figure 2 As shown, the present invention provides a kind of infrared optical system, and this infrared optical system adopts the structural form of refraction secondary imaging, and coaxially is arranged with fairing 1, first lens group 2, prism 3, The second lens group 4 and the infrared imaging detector 5 .

[0032] The lens group 2 mentioned in the present invention includes a first positive lens 2-1 and a first negative lens 2-2.

[0033] The lens group 4 mentioned in the present invention includes a second negative lens 4-1, a second positive lens 4-2, a third positive lens 4-3, a third negative lens 4-4, and a fourth positive lens 4-5.

[0034] The infrared imaging detector 5 mentioned in the present invention includes a detection window 5-1, a cold diap...

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Abstract

The invention provides an infrared optical system and relates to an infrared imaging guidance optical system in infrared / laser dual mode guidance. The infrared optical system is sequentially and coaxially provided with a fairing (1), a first lens group (2), a prism (3), a second lens group (4) and an infrared imaging detector (5) from the object plane to the image plane. By adopting a refraction secondary imaging structure, the demand of large visual filed is met, meanwhile, cold diaphragm efficiency of 100% is achieved, a field diaphragm is arranged in the middle of the image plane, stray light can be restrained effectively, and in addition, the infrared optical system is suitable for small pixel detectors and improves imaging resolution of the system. By adopting aspheric surface and binary optics technology, the infrared optical system effectively improves imaging quality of the system, and simplifies the structure of the system. Thus, the infrared optical system has the advantages of being large in visual field, and high in resolution and accuracy.

Description

technical field [0001] The invention belongs to the field of infrared technology, and in particular relates to an infrared imaging guidance optical system applied to infrared / laser dual-mode guidance. Background technique [0002] At present, large-field-of-view and high-resolution infrared imaging optical systems using cooled infrared focal plane array detectors are widely used in aviation, aerospace and ground reconnaissance, tracking and interception. [0003] In modern high-tech warfare, more and more levels of confrontation are encountered in the attack process of precision-guided weapons, and the methods of confrontation are becoming more and more complex. Therefore, higher requirements are put forward for the terminal guidance technology. Since the non-imaging single-homing guidance method adopted by precision-guided weapons can no longer complete the combat mission, it is necessary to develop the imaging-homing guidance technology while vigorously developing the mul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/00G02B27/10G02B3/02G02B1/02
Inventor 丛海佳陈刚义孙永雪张爱红陈守谦范志刚胡海力
Owner 严格集团股份有限公司
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