Projection Type Image Display Apparatus

Inactive Publication Date: 2008-11-27
FUNAI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]It is therefore, a main object of the present invention to provide a technique capable of improving the accuracy of focus adjustment and simplifying the apparatus configuration in a projection type projec

Problems solved by technology

Moreover, in the projection type projector, because it is troublesome for a user to manually adjust the focus of a projected image, the so-called autofocus function for automatically adjusting the focus of a projected image is known.
Therefore, even when the position of the pro

Method used

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  • Projection Type Image Display Apparatus
  • Projection Type Image Display Apparatus
  • Projection Type Image Display Apparatus

Examples

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Embodiment Construction

[0022]Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0023]FIG. 1 is a perspective view of the external appearance of a projection type projector according to an embodiment of the present invention.

[0024]As shown in FIG. 1, in a projection type projector 100 according to the embodiment, a projecting and photographing lens member 120 in which a projector lens 15 and a photographing lens 21 are integrally formed and disposed are arranged on the right side in the front face of a body case 110 shaped in a rectangular parallelepiped shape. A photographing lens 21 is joined to the lower part of the projector lens 15 to form one lens in the projecting and photographing lens member 120.

[0025]The projector lens 15 projects a light figure formed by a light modulation element such as the after mentioned DMD to an object such as a screen, and can arbitrarily change the focus position (lens position).

[0026]The photographing lens 21 photographs a

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Abstract

Disclosed is a projection type image display apparatus including a projection section to output a projection light in which an image is attached through a projector lens and a photographing section to photograph a projected image projected by the projection section through a photographing lens, and the projected image which is projected on a screen by the projection section is obtained by the photographing section and a focus of the projected image is adjusted based on a photographing result of the image obtained by the photographing section, and the projector lens and the photographing lens are movable in a direction to change the focus of the projected image or a focus of the photographed image by a same drive section.

Description

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Claims

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Application Information

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Owner FUNAI ELECTRIC CO LTD
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