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Micropearl array reflector of spherically symmatric gradient refractivity

A gradient refractive index, spherical symmetry technology, applied in the direction of instruments, optics, optical components, etc., can solve the problems of low retroreflectivity, small range of incident angle, etc., and achieve the effect of increasing the working distance

Inactive Publication Date: 2007-12-26
严格集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the limitations of its shape and material refractive index, the above-mentioned retroreflector has the characteristics of small variation range of incident angle and low retroreflectivity.

Method used

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  • Micropearl array reflector of spherically symmatric gradient refractivity
  • Micropearl array reflector of spherically symmatric gradient refractivity
  • Micropearl array reflector of spherically symmatric gradient refractivity

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Embodiment Construction

[0027] Embodiments and drawings of the spherically symmetrical gradient index bead array reflector of the present invention are described in detail as follows:

[0028] Fig. 4a is a schematic diagram of the optical path of the single spherical gradient index bead reflector of the present invention when the light beam is vertically incident. According to the principle of Luneburg lens, when the refractive index distribution of the sphere is as formula (1), the incident parallel light is sharply focused on the surface of the ball lens after being refracted by the ball lens.

[0029] n ( r ) = 2 - ( r R ) 2 - - - ( 1 )

[0030] Among them: r is the distance fr...

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Abstract

A micro-ball array reflector is prepared by using ion exchanging technique to work out Luneburg micro-ball lens with reflectivity distribution in ball gradient, plating high reflection film at micro-ball back surface and imbedding it in binding layer combined with sticking layer, and sticking them on carrier of different form for forming various micro-array reflectors.

Description

technical field [0001] The invention belongs to the field of target tracking and instrument technology, in particular to a spherically symmetrical gradient refractive index microbead array reflector with high retroreflectivity, large incident angle and directional retroreflection characteristics. Background technique [0002] Retroreflective cooperative targets are widely used in laser detection, satellite ranging, space docking, and tracking measurement systems. The retroreflective characteristics of cooperative targets seriously affect the range, measurement accuracy and tracking accuracy of the detection system. Traditional retroreflective cooperation targets mainly include corner cube reflectors, "cat's eye" reflectors and glass bead reflectors. [0003] The corner cube prism reflector relies on total reflection to achieve retroreflection, and can only form retroreflection when the reflected light is parallel to the incident light in a small range of incident angles. In...

Claims

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Application Information

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IPC IPC(8): G02B5/10G02B1/10
Inventor 谭久彬陈浩
Owner 严格集团股份有限公司