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Compact large-field-of-view inter-embedded total-reflection optical system

An optical system and large field of view technology, applied in optics, optical components, instruments, etc., can solve problems such as inability to meet long focal length, large field of view imaging performance requirements, limited ability to correct aberrations, increase system complexity, etc., to achieve The effect of reducing the total quantity used, reducing the total length, and simplifying the structure

Active Publication Date: 2019-03-12
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Problems solved by technology

However, although the simple two-mirror R-C system has the characteristics of compact system and simple manufacturing, it cannot meet the imaging performance requirements of long focal length and large field of view, and the system's ability to correct aberrations is limited.
In general two-mirror systems, in order to correct system aberrations and expand the field of view, it is often necessary to add lens groups to compensate, thus increasing the complexity of the system
However, although the common three-anti or four-anti system can meet the imaging performance requirements of the advanced system, the length of the system is too long, and there is no advantage

Method used

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Embodiment Construction

[0019] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] figure 1 It is a structural schematic diagram of a compact large field of view inter-embedded total reflection optical system provided by an embodimen...

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Abstract

The invention discloses a compact large-field-of-view inter-embedded total-reflection optical system. The system meets the application requirements for limited space and large field of view, an optical path is folded through two-time imaging, the overall size is shortened, more importantly, the quantity of processed lenses is reduced as much as possible by utilizing a relative position relationship of a main lens, a third lens, a second lens and a fourth lens, and the simple and compact optical system structure is achieved. The system meets the application requirements for the limited space and large field of view and is of the simple and compact optical system structure.

Description

technical field [0001] The invention belongs to the field of optical design, in particular to a compact large field of view inter-embedded total reflection optical system. Background technique [0002] With the increase of application requirements in the field of space remote sensing, higher performance requirements are put forward for the optical system of the remote sensor. The whole system has the advantages of high resolution, long width, and strong environmental adaptability. With the characteristics of large field of view, compact system, and simple processing and manufacturing, the total reflection system has become one of the very good choices. However, although the simple two-mirror R-C system has the characteristics of compact system and simple manufacturing, it cannot meet the imaging performance requirements of long focal length and large field of view, and the system's ability to correct aberrations is limited. In general dual mirror systems, in order to correc...

Claims

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Application Information

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IPC IPC(8): G02B17/06
CPCG02B17/0647
Inventor 葛婧菁苏云李瀛博王超焦建超韩潇吕红
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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