| 摘要 |
PROBLEM TO BE SOLVED: To provide a back projection type screen with which the chipping of the apex parts, etc., of Fresnel lenses by rubbing, such as vibrating, during transportation, may be prevented while the need for work for bonding tapes in the outer peripheral parts of lens sheets, etc., is eliminated. SOLUTION: This back projection type screen is constituted by superposing >=2 sheets of the sheet-like members in such a manner that the screen consists of a lenticular lens sheet 1 and a Fresnel lens sheet 2. The sheet-like members are integrally molded with projectors 3 for fixing the two sheet-like members in such a manner that both are not offset in the state of superposing the two sheet-like members. The sheet-like members constituting the back projection type screen may be integrally molded with the projectors to be utilized in order to mount the back projection type screen to the main body of the back projection type video display device or the frame of the screen. The sheet-like members may be integrally molded with the projectors to produce a clearance between the front end segments of the lenses existing the one sheet-like member and the other sheet-like member in the state of superposing the two sheet-like members.
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