PROBLEM TO BE SOLVED: To provide a light source unit and an illumination apparatus capable of contributing to cost down by reducing the number of parts in a case where an area having long and narrow shape is illuminated.SOLUTION: Emitted light from a light source 16 is led to a needle shape emission surface 18b with a shi-shin shape light conductor 18. It is so configured that the shi-shin shape light conductor 18 is covered with a shielding case 19, and light is emitted out only from a long and narrow opening part 19a arranged on the shielding case 19. The light emission surface of the shielding case 19 is arranged near design surface of a housing so as to obtain clear emission pattern in which outline is emphasized. When the light emission surface is disposed away from the design surface of the housing, a large ellipse shape area may be emitted without using a plurality of light sources and gradation effect may be exerted. A plurality of light conductor supporting parts 17a, 17b, 17c are arranged on a base member 17 for firmly fastening the long and narrow shi-shin shape light conductor 18.SELECTED DRAWING: Figure 1
【課題】細長い形状の範囲を照明する場合に、部品点数を削減して低コスト化に寄与することが可能な光源ユニットおよび照明装置を提供すること。【解決手段】指針状導光体18を用いて光源16の出射光を針状の発光面18bに導く。この指針状導光体18を遮光ケース19で覆い、遮光ケース19に設けた細長い開口部19aからのみ光が出射するように構成する。遮光ケース19の光出射面を筐体の意匠面に近づけて配置することにより、輪郭が強調された鮮明な発光パターンが得られる。光出射面を筐体の意匠面から離間させることにより、複数の光源を使うことなく広い領域を楕円形状に発光させることができ、グラデーションの効果も得られる。細長い指針状導光体18をしっかりと固定するためにベース部材17に複数の導光体支持部17a、17b、17cを設ける。【選択図】図1
LIGHT SOURCE UNIT AND ILLUMINATION APPARATUS
光源ユニットおよび照明装置
2017-08-31
Patent
Electronic Resource
Japanese
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen |
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