Multiple projection television receiver

Abstract

A multiple projection television receiver is made from of identical modules, each of the modules each of which have three cathode-ray tubes corresponding to the colors red, green and blue, respectively. The modules are stacked vertically and horizontally to form a single picture made from the modules. Each of the modules has a screen in the front behind which is located a Fresnel lens. The cathode-ray tubes project the picture through the Fresnel lens onto the screen. Couplers which are attached to the top of all the modules except the modules on the top row, which do not have couplers on top, are U-shaped support members which interlock with modules stacked on top. The height of the couplers may be larger towards the rear so that the assembled multiple projection television receiver is inclined forward. Engaging members extend out and interlock with adjacent modules to horizontally fix the television receiver modules.

What is claimed is: 
     
       1. A multiple projection television receiver comprising a plurality of projection television receiver modules, each including: a Fresnel lens;   a screen located at the front of said receiver modules;   three cathode-ray tubes corresponding to the colors red, green and blue, respectively, for projecting a picture from said tubes onto said screen through said Fresnel lens;   means for vertically and horizontally coupling each module to other modules wherein the front surfaces of said modules adjoining each other are adjacent and located in substantially the same plane.Iadd., wherein each of said modules further includes a recess portion provided in the upper surface thereof and rearward of the front surface,   and wherein said coupling means includes a coupler disposed in said recess portion and a foot member disposed on the under surface of said module,   said coupler and said foot member being configured and positioned for cooperative engagement between the coupler of a lower module and the foot member of a vertically adjacent upper module.Iaddend..   
     
     
       2. .[.A multiple projection television receiver according to the claim 1,.]. .Iadd.A multiple projection television receiver comprising a plurality of projection television receiver modules, each including: a Fresnel lens;   a screen located at the front of said receiver module;   three cathode-ray tubes corresponding to the colors red, green and blue, respectively, for projecting a picture from said tubes onto said screen through said Fresnel lens;   means for vertically and horizontally coupling each module to other modules wherein the front surfaces of said modules adjoining each other are adjacent and located in substantially the same plane, .Iaddend.wherein said coupling means includes vertical coupling means for inclining forward the projection television receiver modules in upper positions relative to the projection television receiver modules in lower positions.   
     
     
       3. A multiple projection television receiver according to claim 1 wherein said coupling means includes couplers secured to the tops of said modules except for the uppermost module wherein the upper modules are placed on the couplers secured to the tops of the lower modules. 
     
     
       4. A multiple projection television receiver according to claim 3 wherein said coupling means includes bolts engaged in tapped holes provided at the bottoms of said upper modules, said bolts are inserted into said couplers and are operable to adjust the position of said upper modules back or forth relative to said lower modules. 
     
     
       5. A multiple projection television receiver according to claim 1 wherein each of said plurality of projection television receiver modules further includes .[.the.]. .Iadd.a .Iaddend.casing wherein said screen is removably attached to the front portion of said casing. 
     
     
       6. A multiple projection television receiver according to claim 5 wherein said .[.case.]. .Iadd.casing .Iaddend.includes a steel box open at one end wherein said open end is surrounded by a thin steel band for minimizing the portion of the multiple projection television receiver which does not display any picture. 
     
     
       7. A multiple projection television receiver according to claim 6 wherein the box forms a shoulder inside of said .[.steel plate.]. .Iadd.thin steel band .Iaddend.and wherein said screen and said Fresnel lenses are secured against said shoulder. 
     
     
       8. A coupling device for a multiple projection television receiver, having a plurality of projection television receiver modules each of which include three cathode-ray tubes corresponding to the colors red, green and blue, respectively, wherein a picture is projected from said tubes onto a screen through a Fresnel lens and said projection television receiver modules are vertically coupled to each other, comprising: couplers secured to the tops of said modules except for the uppermost module wherein the upper modules are placed on the couplers secured to the tops of the lower modules; and   bolts engaged in tapped holes provided at the bottoms of said upper modules, said bolts are inserted into said couplers and are operable to adjust the position of said upper modules back or forth relative to said lower modules.   
     
     
       9. A coupling device according to the claim 8, wherein the height of each of the couplers is greater at the rear end of the coupler than the front end thereof to incline the upper modules forward relative to the lower modules. .Iadd. 
     
     
       10.  A multiple projection television receiver comprising a plurality of projection television receiver modules, each including: a Fresnel lens;   a screen located at the front of said receiver module;   means for projecting a picture onto said screen through said Fresnel lens; and   means for vertically and horizontally coupling each module to other modules wherein the front surfaces of said modules adjoining each other are adjacent and located in substantially the same plane, wherein each of said modules further includes a recess portion provided in the upper surface thereof and rearward of the front surface,   and wherein said coupling means includes a coupler disposed in said recess portion and a foot member disposed on the under surface of said module,   said coupler and said foot member being configured and positioned for cooperative engagement between the coupler of a lower module and the foot member of a vertically adjacent upper module. .Iaddend. .Iadd.   
     
     
       11.  A coupling device for a multiple projection television receiver, having a plurality of projection television receiver modules each of which includes projecting means, wherein a picture is projected from said projecting means onto a screen through a Fresnel lens and said projection television receiver modules are vertically coupled to each other, comprising: couplers secured to the tops of said modules except for the uppermost module wherein the upper modules are placed on the couplers secured to the tops of the lower modules; and   bolts engaged in tapped holes provided at the bottoms of said upper modules, said bolts are inserted into said couplers and are operable to adjust the position of said upper modules back or forth relative to said lower modules. .Iaddend. .Iadd.   
     
     
       12.  A module for forming a multiple projection television receiver in which modules of the same construction are vertically coupled to each other, said module comprising: a Fresnel lens;   a screen, in the form of a substantially planar shape;   means for projecting an optical image onto the screen through said Fresnel lens;   a casing having a forward portion for mounting said screen, a rearward portion for mounting said projecting means, and an upper portion; and   means disposed on said casing upper portion for coupling said module to modules positioned horizontally adjacent to said module and to a module positioned vertically above and adjacent said module,   wherein said coupling means includes a coupler having an inclined surface for spacing the vertically above adjacent module, said inclined surface inclining downwardly in the forward direction. .Iaddend. .Iadd.   
     
     
       13.  A multiple projection television receiver comprising a plurality of projection television receiver modules, each including: a Fresnel lens;   a screen located at the front of said receiver module;   means for projecting a picture onto said screen through said Fresnel lens; and   means for vertically and horizontally coupling each module to other modules wherein the front surfaces of said modules adjoining each other are adjacent and located in substantially the same plane, wherein said coupling means includes vertical coupling means for including forward the projection television receiver modules in upper positions relative to the projection television receiver modules in lower positions. .Iaddend. .Iadd.   
     
     
       14.  A multiple projection television receiver according to claim 10, wherein said coupling means includes couplers secured to the tops of said modules except for the uppermost module wherein the upper modules are placed on the couplers secured to the tops of the lower modules. .Iaddend. .Iadd.15. A multiple projection television receiver according to claim 14, wherein said coupling means includes bolts engaged in tapped holes provided at the bottoms of said upper modules, said bolts are inserted into said couplers and are operable to adjust the position of said upper modules back or forth relative to said lower modules. .Iaddend. .Iadd.16. A multiple projection television receiver according to claim 10, wherein each of said plurality of projection television receiver modules further includes a casing wherein said screen is removable attached to the front portion of said casing. .Iaddend. .Iadd.17. A multiple projection television receiver according to claim 16, wherein said casing includes a steel box open at one end wherein said open end is surrounded by a thin steel band for minimizing the portion of the multiple projection television receiver which does not display any picture. .Iaddend. .Iadd.18. A multiple projection television receiver according to claim 17, wherein the box forms a shoulder inside of said steel band and wherein said screen and said Fresnel lenses are secured against said shoulder. 
     
     
        .Iaddend. .Iadd.19.  A coupling device according to claim 11, wherein the height of each of the couplers is greater at the rear end of the coupler than the front end thereof to incline the upper modules forward relative to the lower modules. .Iaddend.