Patent ID: 9448351
Filing Date: 2016-09-20
CPC Classification: G02B

Claim Text:
1. A reflector configured for guiding light emitted from a light emitting diode (LED) light source, comprising: at least one reflective wall; and a cavity surrounded by the least one reflective wall, the cavity comprising a first opening and a second opening at opposite ends thereof; wherein an inner diameter of the cavity gradually decreases as it extends from the second opening toward the first opening; wherein the LED light source is located at the second opening of the cavity, and light emitted from the LED light source enters into the cavity and is reflected by the at least one reflective wall toward the first opening of the cavity; and wherein the reflective walls comprise a first reflective wall, a second reflective wall, a third reflective wall and a fourth reflective wall, the first reflective wall is inclined to the third reflective wall, and a distance between the first and third reflective walls gradually decreases along an extending direction of the cavity from the second opening to the first opening, the fourth reflective wall opposite to the second reflective wall, the second reflective wall is inclined to the fourth reflective wall, and a distance between the second and fourth reflective walls gradually decreases along the extending direction of the cavity from the second opening to the first opening.