| 摘要 |
PROBLEM TO BE SOLVED: To provide a rear projection type screen by which moire due to the combination of three components such as concentric circular lens components, lens components arrayed with an equal interval in vertical direction and lens components arrayed with the equal interval in horizontal direction is prevented from being recognized even though the pitches of three components get close. SOLUTION: In the rear projection type screen in which a first sheet 10 having a Fresnel lens 12 made of an ultraviolet curing resin on the light emitting side of a base material that possesses a lenticular lens 11 for vertical diffusion on a light entering side and whose thickness is 1.8 mm, and a second lens sheet 20 having a lenticular lens 21 for horizontal diffusion on a light entering side and having black stripes 22 on the light emitting side are assembled, the pitch of the lenticular lens 21 for the horizontal diffusion is set at 0.517 mm, and the pitch of the lenticular lens 11 for the vertical diffusion is set at 0.123 mm and the pitch of a circular Fresnel lens 12 is set at 0.068 mm so as to be set in a television. COPYRIGHT: (C)2004,JPO
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