Long-focal-length large-view-field miniaturized active athermalization optical system
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An optical system and large field of view technology, applied in optics, optical components, instruments, etc., can solve the problems of large volume, small field of view, short focal length, etc., and achieve the effect of compact system, low cost and reduced cost
Pending Publication Date: 2021-12-17
AEROSPACE SCI & IND MICROELECTRONICS SYST INST CO LTD
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The existing technology has the following disadvantages: short focal length, small field of view, large volume, and serious thermal difference
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[0029] All features disclosed in all embodiments in this specification, or steps in all implicitly disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined and / or extended and replaced in any way.
[0030] Such as Figure 1 to Figure 10 As shown, a small active athermalization optical system with a long focal length and a large field of view includes a Cassegrain reflective primary mirror 1, a reflective secondary mirror 2, a field mirror 3, a collimating mirror 4, a first folding mirror 5, a second mirror Two folding mirrors 6, the first imaging mirror group 7, the third folding mirror 8, the second imaging mirror group 9, the fourth folding mirror 10, imaging lens 11 and detector focal plane 12; Cassegrain reflection main mirror 1 and reflection The secondary mirror 2 constitutes the Cassegrain imaging system, and a field lens 3 is provided between the Cassegrain reflective primary mirror 1 and the reflective secondary mirror 2. Th...
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Abstract
The invention discloses a long-focal-length large-view-field miniaturized active athermalization optical system which comprises a Cassegrain reflection primary mirror, a reflection secondary mirror, a field lens, a collimating mirror, a first folding mirror, a second folding mirror, a first imaging mirror group, a third folding mirror, a second imaging mirror group, a fourth folding mirror, an imaging lens and a detector focal plane. The Cassegrain reflection primary mirror and the reflection secondary mirror form a Cassegrain imaging system, the field lens is arranged between the Cassegrain reflection primary mirror and the reflection secondary mirror, and the field lens is used for compressing the field angle of the collimating mirror and correcting the field curvature of the imaging system; and the collimating lens, the first folding lens, the second folding lens, the first imaging lens group, the third folding lens, the second imaging lens group, the fourth folding lens, the imaging lens and the detector focal plane are sequentially connected through light paths. The system can work in a wide temperature range, the cost of the system is reduced, meanwhile, the space structure of the system is optimized through the turning mirror, and miniaturization is achieved.
Description
technical field [0001] The invention relates to the technical field of photoelectric tracking and aiming imaging, and more specifically, relates to a miniaturized active adiabatic optical system with long focal length and large field of view. Background technique [0002] Beam control and tracking and targeting equipment (ATP for short) is an important part of laser directed energy weapons and multi-functional laser combat vehicles. Multi-level stable imaging tracking of targets. The prior art has the following disadvantages: short focal length, small field of view, large volume, and serious thermal difference. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a miniaturized active adiabatic optical system with long focal length and large field of view, which can work in a wide temperature range, not only utilizing the function of jamming long focal length, but also The field lens is used ...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): G02B17/08
CPCG02B17/0808
Inventor 武春风王晓丹吴丰阳江颖董理治王勋马社
Owner AEROSPACE SCI & IND MICROELECTRONICS SYST INST CO LTD
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