Image display device

Abstract

A single plate type optical unit and display device to utilize light with high efficiency in a simple method is configured so a dichroic mirror separates light into a plurality of colors, and the plurality of colors of light reflected by the dichroic mirror are beamed onto a rotating multisurface element, the plurality of colors of light emitted from the rotating multisurface element are each beamed onto different locations on the display element, and by rotating the rotating multisurface element, the plurality of colors of light are moved in one direction along the display element, and a color image is beamed from a projection lens.

1 - 22 . (canceled)  
   
   
       23 . An image display device comprising a light source, a reflecting image display element to form an optical image according to an image signal from the light emitted from said light source, a color separator which separates the light emitted from said light source into a plurality of light colors, a rotating multisurface element being inputted with each light color of the plurality of light colors emitted by said color separator which changes the respective optical axis direction and beaming said each light color onto different locations on said reflecting image display element while scrolling the light in one direction, a projection lens which projects light emitted from said reflecting image display element as a color image light, and an optical element which changes shape of the light emitted from said light source into approximately similar shape as the form of the each light color of the plurality of light colors Inputted onto said reflecting image display element, wherein the light changed by said optical element is inputted with said rotating multisurface element through said color separator.  
   
   
       24 . An image display device according to  claim 23 , wherein said optical element is constituted including at least one light pipe.  
   
   
       25 . An image display device according to  claim 24 , wherein the output opening shape of said light pipe is designed to approximately similar shape as the form of the each light color inputted onto said reflecting image display element.  
   
   
       26 . An image display device according to  claim 23 , wherein said optical element is constituted including a plurality of array lenses which constituted ach plural lens cells and each array lens shape of the said plurality of array lenses is designed to approximately similar shape as the form of the each light color inputted onto said reflecting image display element.  
   
   
       27 . An image display device according to  claim 23 , wherein the light axes of each light color of the plurality of light colors emitted by said color separator are inputted onto approximately vertically to one surface constituting said rotating multisurface element at predetermined rotating angle.  
   
   
       28 . An image display device comprising a light source, a color separator which separates the light emitted from said light source into a plurality of light colors, a rotating multisurface element which reflects each light color of the plurality of light colors emitted by said color separator, a reflecting image display element to form an optical image according to an image signal, based on the light emitted from said rotating multi surface element, a projection lens which projects light emitted from said reflecting image display element as a color image light, and an optical element which changes shape of the light emitted from said light source into approximately similar shape as the form of the each light color of the plurality of light colors inputted onto said reflecting image display element, wherein the light changed by said optical element is inputted onto said rotating multisurface element through said color separator.  
   
   
       29 . An image display device according to  claim 28 , wherein said optical element is constituted including at least one light pipe.  
   
   
       30 . An image display device according to  claim 29 , wherein the output opening shape of said light pipe is designed to approximately similar shape as the form of the each light color inputted onto said reflecting image display element.  
   
   
       31 . An image display device according to  claim 28 , wherein said optical element is constituted including a plurality of array lenses which constituted ach plural lens cells and each array lens shape of the said plurality of array lenses is designed to approximately similar shape as the form of the each light color inputted onto said reflecting image display element.