Light guide,method for manufacturing light guide,optical shutter and surface light source
Provided is a plate-type light guide (4) in which two opposing main surfaces are set as light emitting surfaces (6A, 6B) and at least one side-edge surface is set as a light incidence surface (5). In such a light guide, a light emitting mechanism (6) is provided in at least one region of at least on...
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| creator | WAKUI, YASUO YOSHIMURA, TOMONARI YAGI, KENJI |
| description | Provided is a plate-type light guide (4) in which two opposing main surfaces are set as light emitting surfaces (6A, 6B) and at least one side-edge surface is set as a light incidence surface (5). In such a light guide, a light emitting mechanism (6) is provided in at least one region of at least one main surface; the haze value is 3% or lower in the region where the light emitting mechanism is provided; when a perfect diffuse light enters through at least one light incidence surface (5), a maximum emission angle (θA, θB), at which maximizes the intensity of emitted light (8) from the main surface is in a range from −60 degrees to +60 degrees with respect to a normal line to the main surface; and the utilization efficiency of emitted light is 15% or greater. |
| format | Patent |
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In such a light guide, a light emitting mechanism (6) is provided in at least one region of at least one main surface; the haze value is 3% or lower in the region where the light emitting mechanism is provided; when a perfect diffuse light enters through at least one light incidence surface (5), a maximum emission angle (θA, θB), at which maximizes the intensity of emitted light (8) from the main surface is in a range from −60 degrees to +60 degrees with respect to a normal line to the main surface; and the utilization efficiency of emitted light is 15% or greater.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM |
| title | Light guide,method for manufacturing light guide,optical shutter and surface light source |
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