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Optical system for forming animated image by irradiating diffractive optical element with collimated laser

A diffractive optical element and collimating laser technology, applied in the field of optical systems, can solve the problems of complex combination structure of optical imaging systems, and achieve the effects of improving function and applicability, low cost, and reducing volume

Pending Publication Date: 2018-09-21
江西衍光科技有限公司
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Problems solved by technology

figure 2 It is a schematic diagram of the composition of the spatial light modulator. The width L0 and the lengths L1, L2, L3, L4, L5, and L6 of the spatial light modulator are very large, resulting in a complex structure of the entire optical imaging system

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  • Optical system for forming animated image by irradiating diffractive optical element with collimated laser
  • Optical system for forming animated image by irradiating diffractive optical element with collimated laser
  • Optical system for forming animated image by irradiating diffractive optical element with collimated laser

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[0025] The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the following embodiments are based on this technical solution, and give detailed implementation and specific operating procedures, but the scope of protection of the present invention is not limited to this Examples.

[0026] Such as image 3 As shown in -4, an optical system that uses collimated laser light to irradiate diffractive optical elements to form animated images includes a laser light source 0 for emitting collimated parallel light and a movable diffractive optical element combination 1; the diffractive optical element combination 1 It is mainly composed of diffractive optical elements 101 with preset images arranged in a set order; the laser irradiation light source 0 corresponds to the position of the diffractive optical element combination 1, and as the diffractive optical element combination moves, the laser irradiation light source 0 ...

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Abstract

The invention discloses an optical system for forming an animated image by irradiating a diffractive optical element with a collimated laser. The optical system comprises a laser irradiation source for emitting collimated parallel light and a movable diffractive optical element combination. The diffractive optical element combination is mainly composed of diffractive optical elements having presetimages and arranged in a set order. The laser irradiation source and the diffractive optical element combination correspond to each other in position. As the diffractive optical element combination moves, the collimated parallel light emitted by the laser irradiation source may irradiate the diffractive optical element combination to achieve a desired light field animated imaging combination. Theoptical system has few optical components small in size, and has light utilization efficiency over 90%.

Description

Technical field [0001] The invention relates to the technical field of optical systems, in particular to an optical system that uses collimated laser light to irradiate diffractive optical elements to form animated images. Background technique [0002] There are two traditional optical system designs for forming animated images. One is a combination of spatial light modulators (such as masks, liquid crystal screens, etc.) that illuminate the required light field combination through a surface light source (such as LED light source). This design method It is through the shielding method to modulate the incident light field to achieve the output of the required light field. To form an animation image, a different combination of spatial light modulators needs to be replaced. The optical elements of this design method are complex, large in number, large in size, and very low in light utilization efficiency. At the same time, the light field generation method of the traditional spatia...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/42
CPCG02B27/4205G02B27/4272
Inventor 邓武
Owner 江西衍光科技有限公司
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