STRAIGHT PIPE TYPE LED LAMP AND LIGHTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a straight pipe type LED lamp which significantly lowers the unified glare rating without depending on the shape of a lamp fitting to reduce uncomfortable glare and thereby contributes to improvement of the versatility.SOLUTION: At the inner side of a cover member which is not shown in a figure, an optical unit 54 including reflection surfaces 50 formed by metal deposition mirrors is disposed at the front surface side of each LED 12 mounted on an LED substrate 11. An optical path of light emitted from the LED 12 is bend by the reflection surface 50 and the light reaches the cover member. The structure significantly lowers the unified glare rating without depending on the shape of a lamp fitting to reduce uncomfortable glare.