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Projection machine using two projection rays to increase image resolution

A technology for projecting light and projectors, applied in the field of projectors, can solve problems such as high noise, interference, and uneven images, and achieve the effects of saving components, improving service life, and increasing resolution

Inactive Publication Date: 2009-05-27
YOUNG OPTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the prior art has multiple disadvantages: 1. The vibrating device 15 has a service life problem, especially the vibration generated by the motor has a problem of operation life
2. The noise generated by such vibrating device 15 is relatively high
3. The period of the swing plane mirror 14 is too long (often more than 1 millisecond (ms)), and the displayed image is not smooth
4. Susceptible to interference from external vibration

Method used

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  • Projection machine using two projection rays to increase image resolution
  • Projection machine using two projection rays to increase image resolution
  • Projection machine using two projection rays to increase image resolution

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Embodiment Construction

[0026] see Figure 4 , Figure 4 is a schematic diagram of the projector 30 of the present invention. The present invention relates to a projector 30 that increases image resolution by projecting light rays. The projector 30 includes a light source device 40, a light valve 42, an ultrasonic medium 44, a piezoelectric material 46, and a high-frequency oscillator Device 48, and zoom projection lens 50. Wherein, the material of the ultrasonic medium 44 is, for example, quartz, telluride glass, heavy flint glass, PbMoO 4 , TeO 3 , or LiNbO 3 and other materials.

[0027] The light source device 40 is used to generate light. The light generated by the light source device 40 passes through the lens 41 , and then irradiates the light valve 42 , and generates light with an image from the light valve 42 .

[0028] The light from the image of the light valve 42 strikes the ultrasonic medium 44 at an incident angle θ, and then penetrates the ultrasonic medium 44 . The piezoelectr...

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Abstract

In the related projector, it emits the light beam from optical valve image to an ultrasonic media with some incidence angle; then, the beam crosses through the media and alternative generates the diffraction light with a first direction and the transmitted light with second direction, and this invention can enhance image resolution by two lights. Wherein, it arranges the piezoelectric material on one end of the media, and a high-frequency oscillation forces the piezoelectric material to generate ultrasonic wave.

Description

【Technical field】 [0001] The present invention relates to a projector, especially a projector that utilizes the generated projection light to increase image resolution. 【Background technique】 [0002] In order to save component cost, the projector can increase the resolution of the image projected by the projector by generating two projected light rays. In this way, a light valve with low-resolution pixels can be used to achieve the effect of high-resolution images. [0003] see figure 1 , figure 1 is a schematic diagram of a conventional projector producing two projection rays. A conventional projector 10 uses a light source device 11 to generate light, which is converged by a lens 12 and then projected to a light valve 13 . [0004] Light valve 13 modulates the image light to pass through plane mirror 14. Vibration device 15 is used to make plane mirror 14 swing back and forth, so that light penetrating plane mirror i4 will alternately produce two cycles due to the chan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/18G03B21/14
Inventor 廖龙盛陈松楠陈怡学
Owner YOUNG OPTICS