Full-phase modulation method for three dimensional complex optical field

A modulation method and all-phase technology, applied in optics, optical components, instruments, etc., to achieve the effect of three-dimensional display

Active Publication Date: 2010-03-24
南京芯视半导体有限公司
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Problems solved by technology

[0003] Technical problem: In order to overcome that the current all-phase spatial light modulator can only modulate two-dimensional space complex light fields, the present invention provides a modulation method for three-dimensional space complex light fields, which can simultaneously modulate complex light fields on multiple imaging planes light field amplitude modulation

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  • Full-phase modulation method for three dimensional complex optical field
  • Full-phase modulation method for three dimensional complex optical field
  • Full-phase modulation method for three dimensional complex optical field

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Embodiment Construction

[0035] figure 1 Shown is a schematic diagram of reconstruction of a three-dimensional complex light field by an all-phase spatial light modulator, which mainly includes: a coherent light source 1, an all-phase spatial light modulator 2, an optical imaging system 3, a first imaging plane 4, and a second imaging plane 5, Third imaging plane 6 . Wherein the coherent light source 1 can be a coherent plane light, that is, a plane light formed by a collimator lens through the output light of a solid, gas, or semiconductor laser, or a divergent or convergent spherical light, that is, a coherent plane light passing through a concave lens or a convex lens form. The coherent light source 1 directly illuminates the all-phase spatial light modulator 2, and the all-phase spatial light modulator 2 can be a transmissive liquid display, a reflective LCoS display, or a reflective MEMS mirror array, etc. Phase only spatial light modulator (phase only spatial light modulator), when using a ref...

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Abstract

An all-phase modulation method of three-dimension complex light field, wherein a coherent light source 1 radiates an all-phase spatial light modulator 2, the coherent light of the exit plane of the all-phase spatial light modulator 2 is transmitted by an optical imaging system to reach a first image plane 4, the coherent light is transmitted further in a free space to reach a second image plane 5and a third image plane 6 and the like in turn, the amplitude distribution in the defined region of each image plane satisfies a preset value, the defined region and the amplitude distribution presetvalue of each image plane are defined by the distribution of a three-dimension space complex light field, and the phase distribution function of the all-phase spatial light modulator 2 is calculated by iterative method. The all-phase modulation method can realize the projection on any three-dimension curved surfaces and realize three-dimension display.

Description

technical field [0001] The present invention relates to a method for modulating a complex light field by using an all-phase spatial light modulator, in particular to a method for realizing complex light field amplitude modulation on multiple planes at the same time, that is, realizing a three-dimensional space complex light field by using an all-phase spatial light modulator method of amplitude modulation. Background technique [0002] The all-phase spatial light modulator (phase only spatial light modulator) has a very important application prospect in the field of coherent optical wavefront modulation. All-phase spatial light modulators have also been used for the projection of two-dimensional dynamic images (Reference 1: A Georgiou, J Christmas, N Collings, J Moore and WA Crossland, 'Aspects of hologram calculation for video frames', J.Opt.A : Pure Appl.Opt.10(2008)035302(9pp)), which has the characteristics of low power consumption and compact structure. The basic prin...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/46
Inventor 夏军雷威
Owner 南京芯视半导体有限公司
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