Projector and control method

Projector and control method

  • CN 101,989,032 B
  • Filed: 07/29/2010
  • Issued: 09/24/2014
  • Est. Priority Date: 07/31/2009
  • Status: Active Grant
First Claim
Patent Images

1. a projector, is characterized in that, comprising:

  • Penetrate the lighting device of illumination light;

    According to the picture signal of input, the optic modulating device that described illumination light is modulated;

    AndCooling device, this cooling device has the Pei Erdi element that can be connected with described optic modulating device with heat conduction, and cooling described optic modulating device,Described lighting device has;

    Penetrate the light source of light;

    AndThe light modulating device that the light that the amount of described light is adjusted is penetrated as described illumination light,What described cooling device correspondence was supplied with by the electric power of Pei Erdi element described in the light quantity subtend of described light modulating device described illumination light after changing stops or reopening and control, to prevent the generation of the dewfall of described optic modulating device,Described light modulating device has;

    Light modulation portion, it is arranged between described light source and described optic modulating device, from the light of described light source, incides this light modulation portion;

    AndOpening/closing portion, it is arranged between described light modulation portion and described optic modulating device, and is set to make the light being undertaken after light modulation by described light modulation portion to incide this opening/closing portion,Described lighting device in the situation that the light quantity of described illumination light is made as minimum, drives described light modulation portion, so that become below predetermined value by the light quantity of described light modulation portion, and seal described opening/closing portion.

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