Lens strip, LED wall washer with lens strip

Patent metadata

Field	Value
Publication number	US-10534186-B2
Application number	US-201816142768-A
Country	US
Kind code	B2
Filing date	Sep 26, 2018
Priority date	Sep 28, 2017
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

A lens strip, LED wall washer with lens strip and illumination system. In a section perpendicular to an extending direction of the lens strip, the lens strip comprises an optical axis, a light-emitting surface intersecting the optical axis, and a light source setting hole disposed on the optical axis, and first and second total reflection surfaces respectively disposed on opposite sides of the light source setting hole and located between the light source setting hole and the light-emitting surface, the illumination system can obtain a uniform and wider illumination of the entire illuminated surface 200, thereby it can form a perfect lighting effect, which can increase the user experience.

First claim

The invention claimed is:

1. A lens strip, characterized in that: in a section perpendicular to an extending direction of the lens strip, the lens strip comprises an optical axis, a light-emitting surface intersecting the optical axis, and a light source setting hole disposed on the optical axis, and first and second total reflection surfaces respectively disposed on opposite sides of the light source setting hole and located between the light source setting hole and the light-emitting surface, on a section perpendicular to the extending direction of the lens strip the light source setting hole includes a wedge-shaped structure in which a surface of the light source setting hole intersecting the optical axis is an arcuate surface, and the light exiting surface includes a converging curved surface receiving the outgoing light of the first total reflection surface in a cross section perpendicular to an extending direction of the lens strip, a first inclined surface receiving the outgoing light of the curved surface of the light source setting hole, and a second inclined surface receiving the outgoing light of the second total reflection surface, the converging curved surface emitting the emitted light of the first total reflection surface after convergence, and in a cross section perpendicular to the extending direction of the lens strip, the angle between any point on the second inclined surface and the optical axis in the light-emitting direction is an acute Angle, the angle between the first inclined surface and the second inclined surface is an obtuse angle in a cross section perpendicular to the extending direction of the lens strip.

2. The lens strip as claimed in claim 1 , wherein the light source setting hole of wedge-shaped structure comprises a top portion, a short side wall on one side of the top portion, and a long side wall on another side of the top portion.

3. The lens strip as claimed in claim 2 , wherein the surface intersecting the top portion and the optical axis is the curved surface, and the curvature of the curved surface is a positive curvature with respect to the light exiting direction of the lens strip.

4. The lens strip as claimed in claim 2 , wherein the first total reflection surface receives the outgoing light of the short side wall, and the second total reflection surface receives the outgoing light of the long side wall.

5. The lens strip as claimed in claim 1 , wherein the second inclined surface is provided with a plurality of curved strips arranged end to end, and the extending direction of the curved strip is perpendicular to the extending direction of the lens strip.

6. An LED wall washer with a lens strip, characterized in that: the LED wall washer with a lens strip comprises a lens strip according to claim 1 , and a lampshade disposed in a light-emitting direction of the lens strip, the lampshade including a light-emitting hole in a section perpendicular to an extending direction of the lens strip, a reflecting edge on one side of the light-emitting hole, and a supporting edge on the other side of the light-emitting hole, a light-emitting surface of the lens strip is embedded in the light-emitting hole, and the second inclined surface and the reflecting edge are located on the same side of the optical axis in a cross section perpendicular to an extending direction of the lens strip, and the converging curved surface and the supporting edge are located on the same side of the optical axis, and the reflecting edge is configured to reflect a portion of the outgoing light of the first inclined surface, the supporting edge and the outgoing light of the light emitting surface is interval.

7. An LED wall washer with a lens strip as claimed in claim 6 , wherein the light source setting hole of wedge-shaped structure comprises a top portion, a short side wall on one side of the top portion, and a long side wall on another side of the top portion.

8. An LED wall washer with a lens strip as claimed in claim 6 , wherein the surface intersecting the top portion and the optical axis is the curved surface, and the curvature of the curved surface is a positive curvature with respect to the light exiting direction of the lens strip.

9. An illumination system, characterized in that: the illumination system comprises an LED wall washer with a lens strip according to claim 6 , and an illuminated surface illuminated by an LED wall washer with a lens strip, an angle between the optical axis and the illuminated surface includes an acute angle, the acute angle is between 5 degrees and 10 degrees, and the lens strip extends in a direction parallel to the illuminated surface and the emitted light of the second inclined surface of the lens strip is directed toward one side of the illuminated surface close to the LED wall washer, and the emitted light of the converging curved surface of the lens strip is directed toward other side of the illuminated surface close to the LED wall washer.

10. The illumination system as claimed in claim 9 , wherein the illuminated surface is perpendicular to the ground plane with reference to the ground plane, the lens strip extends parallel to the illuminated surface and the ground plane.

11. An LED wall washer with a lens strip as claimed in claim 6 , wherein the first total reflection surface receives the outgoing light of the short side wall, and the second total reflection surface receives the outgoing light of the long side wall.

12. An LED wall washer with a lens strip as claimed in claim 6 , wherein the second inclined surface is provided with a plurality of curved strips arranged end to end, and the extending direction of the curved strip is perpendicular to the extending direction of the lens strip.

13. The LED wall washer with a lens strip as claimed in claim 6 , wherein the LED wall washer with a lens strip further comprises a light emitting module, the lens strip is disposed in a light emitting direction of the light emitting module, the light emitting module includes at least one LED chip, and an optical axis of the lens strip the chip optical axis of LED chip is coincidence.

14. The LED wall washer with a lens strip as claimed in claim 6 , wherein the LED wall washer further comprises a optical filter disposed on the lampshade, one side of the optical filter is disposed on the support edge and receives the outgoing light of the lens strip, the other side of the optical filter abuts against the reflecting edge and receives the outgoing light of the reflecting edge, and the optical filter is fixed on the supporting edge so that the optical filter is attached to the supporting edge.

15. The LED wall washer with a lens strip as claimed in claim 8 , wherein the LED wall washer further comprises a optical filter disposed on the lampshade, one side of the optical filter is disposed on the support edge and receives the outgoing light of the lens strip, the other side of the optical filter abuts against the reflecting edge and receives the outgoing light of the reflecting edge, and the optical filter is fixed on the supporting edge so that the optical filter is attached to the supporting edge.

16. The LED wall washer with a lens strip as claimed in claim 12 , wherein the LED wall washer further comprises a optical filter disposed on the lampshade, one side of the optical filter is disposed on the support edge and receives the outgoing light of the lens strip, the other side of the optical filter abuts against the reflecting edge and receives the outgoing light of the reflecting edge, and the optical filter is fixed on the supporting edge so that the optical filter is attached to t

Assignees

• Self Electronics Co Ltd
• Lin Wanjiong
• Self Electronics Usa Corp

Inventors

• Xu Bozhang
• Wu Haitao
• Zhang Fawei

Classifications

• F21Y2103/10

  comprising a linear array of point-like light-generating elements · CPC title

• F21V19/001

  the light sources being semiconductors devices, e.g. LEDs · CPC title

• F21V13/14

  the elements being filters or photoluminescent elements, reflectors and refractors · CPC title

• F21V5/02

  of prismatic shape (F21V5/04 takes precedence) · CPC title

• F21S8/00 Primary

  Lighting devices intended for fixed installation (F21S9/00, F21S10/00 take precedence; using a string or strip of light sources F21S4/00) · CPC title