MANUFACTURE OF LIGHT TRANSMISSION BODY FOR SURFACE LIGHT EMITTING DEVICE
PROBLEM TO BE SOLVED: To provide a new manufacturing method capable of manufacturing a light transmission body to be uses as a polarized light separating means easily without loss of material in order to realize a surface light emitting device having high luminance excellent in the sensation of pict...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a new manufacturing method capable of manufacturing a light transmission body to be uses as a polarized light separating means easily without loss of material in order to realize a surface light emitting device having high luminance excellent in the sensation of picture quality. SOLUTION: Triangle poles made of transparent resin 10a, 10b becoming end parts of the incident plane side and a side opposite to it, and two kinds of thin layer transparent optical mediums A, B having different refractive indexes are respectively prepared by desired numbers, and after the triangle pole made of transparent resin 10a becoming the end part of the incident side or the side opposite to it of a light transmission body is arranged in the metallic mold M provided with a space having a shape and a size corresponding to the light transmission body to be produced and, next, two kinds of transparent optical mediums A, B are alternately piled and the triangle pole 10c of one side is arranged at the end part of them, these are heatingly press-fixed. |
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