Optical lens and illuminating device incorporating the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F21V-007/04
F21V-003/00
F21V-005/00
F21V-007/00
G09F-013/04
G09F-013/08
출원번호
US-0817146
(2010-06-16)
등록번호
US-8262272
(2012-09-11)
발명자
/ 주소
Cheng, Yi-Kai
Chern, Jyh-Long
Chen, Ping-Yu
출원인 / 주소
Foxsemicon Integrated Technology, Inc.
대리인 / 주소
Altis Law Group, Inc.
인용정보
피인용 횟수 :
3인용 특허 :
12
초록▼
An optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configur
An optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction. The light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are formed on at least one of the light incident surface and the light emitting surface. The light converging portion includes parallel recesses distributed along the second direction.
대표청구항▼
1. An optical lens comprising: an array of lens units, each lens unit comprising a main body, a light diverging portion and a light converging portion, the main body comprising a light incident surface and a light emitting surface opposite to the light incident surface, the light diverging portion b
1. An optical lens comprising: an array of lens units, each lens unit comprising a main body, a light diverging portion and a light converging portion, the main body comprising a light incident surface and a light emitting surface opposite to the light incident surface, the light diverging portion being configured for expanding a light field along a first direction, the light converging portion being configured for compressing a light field along a second direction, the light diverging portion and the light converging portion being formed on at least one of the light incident surface and the light emitting surface, the light converging portion comprising a plurality of parallel recesses distributed along the second direction; wherein the light diverging portion is a concave cylinder portion that extends along the second direction, and the light converging portion extends parallel to the first direction;wherein light enters the light incident surface along a third direction and is expanded in the first direction by the light diverging portion and compressed in the second direction by the light converging portion; andwherein every two of the first direction, the second direction and the third direction are perpendicular to each other. 2. The optical lens of claim 1, wherein the light converging portion is formed on the light emitting surface, and the light diverging portion is formed on the light incident surface. 3. The optical lens of claim 2, wherein each recess has a top surface and a side surface connected to a top surface of an adjacent recess, two top surfaces of the two recesses adjacent to a center of the light emitting surface being connected with each other. 4. The optical lens of claim 3, wherein the top surface of each recess is an inclined planar surface which has a slope gradually increasing from the center towards two sides of the light emitting surface along the second direction. 5. The optical lens of claim 2, wherein the recesses each have a width gradually decreasing from a center towards two sides of the light emitting surface along the second direction. 6. An illuminating device comprising: a light source module for emitting light; andan optical lens configured for adjusting the light emitted from the light source module, the optical lens comprising an array of lens units, each lens unit comprising a main body, a light diverging portion and a light converging portion, the main body comprising a light incident surface and a light emitting surface opposite to the light incident surface, the light diverging portion being configured for expanding a light field along a first direction, the light converging portion being configured for compressing a light field along a second direction, the light diverging portion and the light converging portion being formed on at least one of the light incident surface and the light emitting surface, the light converging portion comprising a plurality of parallel recesses distributed along the second direction;wherein the light diverging portion is a concave cylinder portion that extends along the second direction, and the light converging portion extends parallel to the first direction;wherein the light enters the light incident surface along a third direction and is expanded in the first direction by the light diverging portion and compressed in the second direction by the light converging portion; andwherein every two of the first direction, the second direction and the third direction are perpendicular to each other. 7. The illuminating device of claim 6, wherein the light converging portion is formed on the light emitting surface, and the light diverging portion is formed on the light incident surface. 8. The illuminating device of claim 6, wherein each recess has a top surface and a side surface connected to the top surface of an adjacent recess, two top surfaces of the two recesses adjacent to a center of the light emitting surface being connected with each other. 9. The illuminating device of claim 8, wherein the top surface of each recess is an inclined planar surface which has a slope gradually increasing from the center towards two sides of the light emitting surface along the second direction. 10. The illuminating device of claim 8, wherein the recesses each have a width gradually decreasing from a center towards two sides of the light emitting surface along the second direction. 11. The illuminating device of claim 6, wherein the light source module comprises a circuit board and a plurality of light emitting diodes mounted on the circuit board, the LEDs having one-to-one corresponding relationships with respect to the lens units of the optical lens.
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이 특허에 인용된 특허 (12)
Min, Jee-hong; Choi, Hwan-young; Lee, Moon-gyu; Lee, Su-mi; Kim, Jin-hwan; Choi, Jin-seung, Backlight unit.
Lee, Young-keun; Park, Chan-Jae; Byun, Sang-Chul; Shin, Myeong-Ju; Ryu, Suchang, Light emitting unit, backlight assembly including the same, and method of manufacturing the same.
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