Reflector, illuminating device and backlight module using the reflector
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F21V-008/00
F21K-099/00
출원번호
US-0466540
(2014-08-22)
등록번호
US-9448351
(2016-09-20)
우선권정보
TW-103127993 A (2014-08-14)
발명자
/ 주소
Lin, Chen-Han
출원인 / 주소
HON HAI PRECISION INDUSTRY CO., LTD.
대리인 / 주소
Ma, Zhigang
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
A reflector configured for guiding light emitted from a light emitting diode (LED) light source includes four reflective walls. The reflective walls are connected side-by-side to cooperatively define a cavity. The cavity has a first opening and a second opening at opposite ends thereof. An inner dia
A reflector configured for guiding light emitted from a light emitting diode (LED) light source includes four reflective walls. The reflective walls are connected side-by-side to cooperatively define a cavity. The cavity has a first opening and a second opening at opposite ends thereof. An inner diameter of the cavity gradually decrease as it extends from the second opening toward the first opening. The LED light source is located at the second opening of the cavity. 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. An illuminating device and a backlight module using the reflector are also provided.
대표청구항▼
1. A reflector configured for guiding light emitted from a light emitting diode (LED) light source, comprising: at least one reflective wall; anda 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
1. A reflector configured for guiding light emitted from a light emitting diode (LED) light source, comprising: at least one reflective wall; anda 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; andwherein 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. 2. The reflector of claim 1, wherein each reflective wall is an elongated plate-shaped member, and the reflective walls are connected side-by-side to cooperatively define the cavity. 3. The reflector of claim 1, wherein the fourth reflective wall interconnects one of two long sides of the first reflective wall and one of two long sides of the third reflective wall, and the second reflective wall interconnects the other one of two long sides of the first reflective wall and the other one of two long sides of the third reflective wall. 4. The reflector of claim 2 further comprising a bottom plate covering the second opening, wherein the bottom plate and the reflective walls cooperatively define a receiving recess in the cavity for accommodating the LED light source, and the LED light source is received in the receiving recess and mounted on the bottom plate. 5. The reflector of claim 4 further comprising a mounting hole defined in one of the reflective walls, wherein the mounting hole extends through the reflective wall and communicates the receiving recess, the LED light source comprising a substrate and a plurality of light emitting diodes arranged thereon, and the substrate is capable of sliding into the receiving recess via the mounting hole. 6. An illuminating device, comprising: a light emitting diode (LED) light source; anda reflector optically coupled to the LED light source for guiding light emitted from the LED light source, the reflector comprising at least one reflective wall and a cavity surrounded by the least one reflective wall;wherein the cavity comprises a first opening and a second opening at opposite ends thereof, and an inner diameter of the cavity gradually decrease 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; andwherein 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. 7. The illuminating device of claim 6, wherein each reflective wall is an elongated plate-shaped member, and the reflective walls are connected side-by-side to cooperatively define the cavity. 8. The illuminating device of claim 6, wherein the fourth reflective wall interconnects one of two long sides of the first reflective wall and one of two long sides of the third reflective wall, and the second reflective wall interconnects the other one of two long sides of the first reflective wall and the other one of two long sides of the third reflective wall. 9. A backlight module, comprising: a light emitting diode (LED) light source;a light guide plate optically coupled to the LED light source, the light guide plate comprising a light exit face, a bottom face opposite the light exit face, and a light incident face interconnecting the bottom face and the light exit face; anda reflector located between the LED light source and the light guide plate, the reflector being configured for optically coupling light emitted from the LED light source into the light guide plate, the reflector comprising at least one reflective wall and a cavity surrounded by the least one reflective wall;wherein the cavity comprises a first opening and a second opening at opposite ends thereof, and 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, the light guide plate is located at the first opening of the cavity, light emitted from the LED light source enters into the cavity and is reflected by the at least one reflective toward the light incident face of the light guide plate; andwherein 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. 10. The backlight module of claim 9, wherein each reflective wall is an elongated plate-shaped member, and the reflective walls are connected side-by-side to cooperatively define the cavity. 11. The backlight module of claim 9, wherein the fourth reflective wall interconnects one of two long sides of the first reflective wall and one of two long sides of the third reflective wall, and the second reflective wall interconnects the other one of two long sides of the first reflective wall and the other one of two long sides of the third reflective wall.
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