LIGHT SOURCE DEVICE
PROBLEM TO BE SOLVED: To provide a light source device of linear type which converts light from LEDs arranged in array form with a phosphor to obtain white light (pseudo white light), and which can eliminate unevenness in colors occurring in a vertical-section direction.SOLUTION: A light source devi...
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| creator | KAMEI HIROICHI YOKOGAWA YOSHIHISA TADA MOTONORI KANEHATA YOSHIHIRO |
| description | PROBLEM TO BE SOLVED: To provide a light source device of linear type which converts light from LEDs arranged in array form with a phosphor to obtain white light (pseudo white light), and which can eliminate unevenness in colors occurring in a vertical-section direction.SOLUTION: A light source device 10, designed to emit white light, has a plurality of LEDs 11 to emit ultraviolet or blue light, arranged in a row on a long and narrow LED substrate 12, and includes: a gutter-like or cylindrical translucent base member 15 which is located on the light radiation surface side of the LEDs 11 and has a curved face protruding in a light emission direction; and a phosphor layer 13 which is supported by the translucent base member 15, is excited by light emission from the LEDs 11 and emits long-wave light greater in wavelength than the light emitted by the LEDs 11. The translucent base member 15, in its cross section cut perpendicular to the longer direction of the light source 10, should preferably be formed like a circular arc having its center on the light emission surface of the LEDs 11. |
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The translucent base member 15, in its cross section cut perpendicular to the longer direction of the light source 10, should preferably be formed like a circular arc having its center on the light emission surface of the LEDs 11.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS BLASTING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES SEMICONDUCTOR DEVICES SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS |
| title | LIGHT SOURCE DEVICE |
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