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Wide angle optical lens

A wide-angle optics and lens technology, which is applied in the field of optical systems, can solve problems such as design structure defects, low imaging quality, and poor use effects, and achieve the effects of broadening the wavelength range, improving the illumination of the image plane, and reducing aberrations

Inactive Publication Date: 2014-01-01
THE 3RD ACAD 8358TH RES INST OF CASC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing wide-angle optical lens has defects in the design structure, which makes the imaging quality not high and the use effect is not good.

Method used

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Embodiment Construction

[0018] The present invention is described in detail below in conjunction with accompanying drawing and embodiment:

[0019] Such as figure 1 As shown, a wide-angle optical lens includes a coaxially arranged window 1, a first lens 2, a second lens 3, a third lens 4, a fourth lens 5, a diaphragm 10, a fifth lens 6, and a sixth lens 7 , the seventh lens 8 and the eighth lens 9. The window 1, the lens and the diaphragm 10 are connected by a lens barrel; the quasi-image square telecentric optical path design technology is adopted to reasonably match the lens material, radius, distance and thickness parameters.

[0020] According to the direction of the optical path, it is stipulated that the left surface of all optical elements in the figure is the front surface, and the right surface is the rear surface. The two radii ranges of the front and rear surfaces of window 1 are 87mm-93mm, 85mm-89mm, the light apertures are Φ48.8mm and Φ44mm, the thickness range is 3.5mm-5mm, and the re...

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Abstract

The invention belongs to an optical system, and particularly relates to a wide angle optical lens which is wide in spectrum and high in image quality. The wide angle optical lens comprises a window, a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens, a seventh lens and an eighth lens, wherein the window, the first lens, the second lens, the third lens, the fourth lens, the diaphragm, the fifth lens, the sixth lens, the seventh lens and the eighth lens are coaxial with one another; the window, the lenses and the diaphragm are connected through a lens cone. Compared with the prior art, the wide angle optical lens has the advantages that by reasonably selecting the surface radius, thickness, distance and materials of the lenses, the image plane illuminance and an optical transfer function are increased, all kinds of lens aberrations, spherical aberrations, coma aberrations, astigmatism, field curvature, chromatic aberrations and distortion are reduced, and the wavelength range is broadened.

Description

technical field [0001] The invention belongs to an optical system, in particular to a wide-spectrum, high-quality wide-angle optical lens. Background technique [0002] A wide-angle lens is needed in the long-distance target positioning system, and its use requirements are very high, and the design technology is very difficult. The current existing wide-angle optical lens has defects in design and structure, which makes the imaging quality not high and the use effect not good. Contents of the invention [0003] The object of the present invention is to provide a wide-spectrum wide-angle optical lens that can improve imaging quality and image plane illumination and is easy to use. [0004] The present invention is realized like this, a kind of wide-angle optical lens, it comprises the window of coaxial arrangement, the first lens, the second lens, the third lens, the fourth lens, diaphragm, the fifth lens, the sixth lens, the seventh lens The lens and the eighth lens, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/06
Inventor 雷丽李景张晨钟孟军合
Owner THE 3RD ACAD 8358TH RES INST OF CASC
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