Projector

Abstract

Projection display apparatus 1 includes light source lamp unit 8, optical lens unit 9, projection lens unit 6, and power supply unit 7. Projection lens unit 6 is disposed in the front part of outside case 2, light source lamp unit 8 is disposed in the back part of the outside case of the apparatus, and between these units 6 and 8 optical lens unit 9 and power supply unit 7 are disposed in a vertically stacked arrangement with optical lens unit 9 on the top and power supply unit 7 on the bottom. Because these large units 9 and 7 are vertically stacked, the front-back and right-left dimensions (i.e. length and width) of the overall apparatus can be reduced. An apparatus 1 that is easily portable and does not require a large installation space can therefore be achieved. Because the heavy power supply unit 7 is on the bottom, apparatus 1 is also stable when placed on a table, etc.

What is claimed is:  
     
       1. A projection display apparatus  projector, comprising: 
       a light source lamp unit ;  
       an optical lens unit  system comprising a color separation means for separating  separator that separates a light beam emitted from said light source lamp unit  into colored light beams of three primary colors , three  light valves for modulating  that modulate the light beams of each of the separated colors, and a color synthesis means for synthesizing the  synthesizer that synthesizes a modulated light beams of each of the modulated colors;  
       a projection lens unit for projecting the  that projects the synthesized modulated light beams onto a screen ;  
       a power supply unit ; and  
       an outside case in which each of said light source lamp, optical lens  system, projection lens and power supply units  is assembled;  
       wherein said projection lens unit  is positioned in a front part of said outside case,  
       said light source lamp unit  is positioned in a back part of said outside case, and  
       said optical lens unit  system and power supply unit  are disposed stacked together in a vertical direction in between said projection lens unit  and said light source lamp unit , and  
       wherein said optical lens unit  system comprises a head panel as a structural member extending transversely in the apparatus  projector,  
       said head panel comprises a horizontal panel part extending longitudinally in the apparatus  projector, and wherein  
       said horizontal panel part also forms at least part of a shield case covering said power supplyunit .  
     
     
       2. A projection display apparatus  projector according to  claim 1  wherein said power supply unit  is disposed below said optical lens unit  system. 
     
     
       3. A projection display apparatus  projector according to  claim 1  further comprising a drive unit for  device that at least reading  reads an information recording medium; and 
       wherein said drive unit  device is disposed between a bottom panel part of said outside case and said light source lampunit .  
     
     
       4. A projection display apparatus  projector according to  claim 2  further comprising a drive unit for  device that at least reading  reads an information recording medium, and wherein said drive unit  device is disposed below said optical lens unit  system in an area next to said power supplyunit . 
     
     
       5. A projection display apparatus according to  claim 1  wherein said light source lamp unit  is integrally connected with said optical lens unit  system. 
     
     
       6. A projection display apparatus  projector according to  claim 5  wherein 
       said light source lamp unit  is fixed to said horizontal panel part of said head panel.  
     
     
       7. A projection display apparatus  projector according to  claim 6  wherein said head panel comprises a perpendicular panel part rising vertically from said horizontal panel part, and 
       wherein said projection lens unit  is fixed to said perpendicular panel part.  
     
     
       8. A projection display apparatus  projector according to  claim 1 , further comprising: 
       a cooling fan disposed above said optical lens unit  system, and wherein  
       said optical lens unit comprises a head panel, and comprising  
       air holes formed in said head panel to enable forced air from said cooling fan to enter said optical lens unit  system, and  
       intake holes formed in said power supply unit .