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Ultraviolet wide-angle objective lens used for moon exploration

A wide-angle objective lens and ultraviolet technology, which is applied in the field of ultraviolet wide-angle objective lens, can solve the problems of low refractive index of materials, few achromatic materials, difficulty in realizing the aberration design of wide-angle imaging objective lens of ultraviolet moon sensor, etc., to achieve correction of astigmatism, correction Distortion, the effect of good spatial environment adaptability

Inactive Publication Date: 2010-01-27
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

Especially in space detection, the wavelength band that needs to be detected has a certain width, so the problem of paired achromatism of materials must be solved to make the system have good optical performance, but there are very few achromatic materials that can be selected in the ultraviolet band, and the refraction The low efficiency makes it difficult for the above-mentioned known structural types to realize the aberration-free design of the wide-angle imaging objective lens of the ultraviolet moon sensor. Therefore, it is necessary to research and develop a wide-angle objective lens structure suitable for imaging applications in this spectral band to meet the requirements.

Method used

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  • Ultraviolet wide-angle objective lens used for moon exploration
  • Ultraviolet wide-angle objective lens used for moon exploration

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Embodiment Construction

[0023] see figure 1 , the present invention provides a kind of ultraviolet wide-angle objective lens that is used for lunar exploration, comprises front end negative power lens 1, rear end negative power lens 7, stop 2, the first positive power lens sheet 3, the second positive light A power lens sheet 4, a negative power lens 5, and a third positive power lens 6. The first positive refractive power lens sheet 3, the second positive refractive power lens sheet 4, the negative refractive power lens sheet 5 and the third positive refractive power lens sheet 6 are successively arranged on the same optical axis 8; The front part of the degree lens sheet 3, the front end negative power lens 1 and the rear end negative power lens 7 bend toward the diaphragm 2.

[0024] The front negative power lens 1 and the rear negative power lens 7 are made of quartz glass. The first positive refractive power lens sheet 3 , the second positive refractive power lens sheet 4 , and the third posit...

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Abstract

The invention relates to an ultraviolet wide angle objective lens which is used for moon exploration, comprising a front-end negative power lens (1), a rear-end negative power lens (7) and an intermediate-group lens with positive power, wherein, the front-end negative power lens (1), the intermediate-group lens and the rear-end negative power lens (7) are arranged on a same optical axis (8) in turn. The invention provides the ultraviolet wide angle objective lens which is capable of correcting aberration and distortion.

Description

technical field [0001] The invention relates to an ultraviolet optical imaging system, in particular to an ultraviolet wide-angle objective lens for lunar exploration. Background technique [0002] For the first time in the world, Chinese scientists used an ultraviolet sensor to conduct imaging detection on a moon-circumferential satellite. The wide-angle objective lens is the main imaging measurement objective lens in the ultraviolet moon sensor. The wavelength used is from the ultraviolet A band to the visible light part, and the wavelength range is 300nm to 500nm. 70° range, the relative aperture of the objective lens is 1 / 5.6, and it can work normally under the irradiation of outer space. [0003] When the optical system is used for imaging measurement, the distortion must be corrected to improve the measurement accuracy, and the larger the field of view of the optical system, the more difficult it is to correct the distortion. Therefore, it is necessary to have a suita...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/06G02B9/12G02B1/02
Inventor 白清兰苗兴华
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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