VEHICULAR LIGHTING UNIT

PROBLEM TO BE SOLVED: To restrict deterioration of outer appearance and irradiate light from an opening part formed at a vehicle body while improving a light utilization efficiency.SOLUTION: A vehicular lighting unit 1 is installed at a vehicle to irradiate light from an opening part H formed at a b...

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Bibliographische Detailangaben
Hauptverfasser: YAMAGUCHI SADAO, OKAWA YUICHI, UMEHARA KEIJI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To restrict deterioration of outer appearance and irradiate light from an opening part formed at a vehicle body while improving a light utilization efficiency.SOLUTION: A vehicular lighting unit 1 is installed at a vehicle to irradiate light from an opening part H formed at a bumper B. The lighting unit comprises LED 4 arranged at a rear part of the opening part H and having a forward-directed optical axis Ax and an inner lens 5 arranged between LED 4 and the opening part H. The inner lens 5 is formed in such a way that a length L in a forward or rearward direction is longer than a thickness T of the opening part H along its width direction and at the same time the lens 5 has a lens main body part 51 arranged on the optical axis Ax of LED 4 while its front end surface 51b being near the opening part H, and a tapered part 521 extending out of the rear edge part of the lens main body part 51 so as to cover the side part of LED 4 in a thickness direction of the lens main body part 51. 【課題】見栄えの悪化を抑制するとともに光利用率を向上させつつ、車体に形成された開口部から光を照射させる。【解決手段】車両用灯具1は、車両に搭載され、バンパーBに形成された開口部Hから光を照射させるものであり、開口部Hの後方に配置されるとともに、前方向きの光軸Axを有するLED4と、LED4と開口部Hとの間に配置されたインナーレンズ5とを備える。インナーレンズ5は、開口部Hの幅方向に沿った厚さTよりも前後方向の長さLが長尺に形成されるとともに、前端面51bを開口部Hに近接させつつLED4の光軸Ax上に配置されたレンズ本体部51と、レンズ本体部51の厚さ方向におけるLED4の側方を覆うように、レンズ本体部51の後縁部から延出するテーパー部521とを有する。【選択図】図4