Light distribution element and lamp comprising the same

Patent metadata

Field	Value
Publication number	US-11732870-B2
Application number	US-202117566608-A
Country	US
Kind code	B2
Filing date	Dec 30, 2021
Priority date	Nov 7, 2019
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A light distribution element and a lamp are provided. The lamp includes a plurality of subsections combined with each other, each of the plurality of subsections is a part of a circumference, and the plurality of subsections can be located on at least one virtual circumference by movement. The light distribution element of the present application includes a plurality of subsections combined with each other, which is favorable for providing the lamp with a special-shaped configuration, thus facilitating the use of the lamp.

First claim

The invention claimed is:

1. A light distribution element, comprising a plurality of subsections combined with each other, each of the plurality of subsections is a part of a circumference,
wherein the plurality of subsections is configured to be located on at least one virtual circumference by movement, wherein a central angle of at least one of the plurality of subsections is not identical to that of the remaining subsections.

2. The light distribution element according to claim 1 , wherein the plurality of subsections are moved to form one or more virtual circumferences.

3. The light distribution element according to claim 1 , wherein the plurality of subsections are spliced to form at least one virtual circumference by translation.

4. The light distribution element according to claim 3 , wherein a shape formed by mutual combination of the plurality of subsections is a symmetric shape.

5. The light distribution element according to claim 3 , wherein central angles of some subsections of the plurality of subsections are identical.

6. The light distribution element according to claim 3 , wherein the central angle of the at least one of the plurality of subsections is smaller than central angles of the remaining subsections.

7. The light distribution element according to claim 1 , wherein the number of the plurality of subsections is greater than or equal to 3, and the subsections with larger central angle are distributed around peripheries of the subsections with smaller central angle.

8. The light distribution element according to claim 5 , wherein the central angle is greater than or equal to 45°.

9. The light distribution element according to claim 3 , wherein diameters of the plurality of subsections are identical.

10. The light distribution element according to claim 9 , wherein in a shape formed by mutual combination of the plurality of subsections, a ratio of a center distance between two subsections with a farthest distance to a diameter of the virtual circumference ranges from 0.5:1 to 5:1.

11. The light distribution element according to claim 3 , wherein among the plurality of subsections, a diameter of at least one subsection is smaller than that of the remaining subsections.

12. The light distribution element according to claim 11 , wherein the number of the plurality of subsections is greater than or equal to 3, and the subsections with larger diameter are distributed around peripheries of the subsections with smaller diameter.

13. The light distribution element according to claim 12 , wherein in a shape formed by mutual combination of the plurality of subsections, a ratio of a center distance between two subsections with a farthest distance to a diameter of the virtual circumference with the largest diameter is greater than or equal to 1:1 and less than or equal to 10:1.

14. The light distribution element according to claim 3 , wherein at least one of the plurality of subsections comprises a light-shielding region and a light-transmitting region, wherein the light-shielding region is close to a center of the circumference, and the light-transmitting region is radially outside the light-shielding region.

15. The light distribution element according to claim 14 , wherein a refraction pattern is constructed in the light-shielding region to realize light shielding.

16. A lamp, comprising a plurality of light emitters and the light distribution element comprising a plurality of subsections combined with each other, each of the plurality of subsections is a part of a circumference,
wherein the plurality of subsections is configured to be located on at least one virtual circumference by movement, wherein a central angle of at least one of the plurality of subsections is not identical to that of the remaining subsections,
wherein the plurality of light emitters are arranged corresponding to the plurality of subsections, and
wherein the lamp further comprises a lamp panel on which the plurality of light emitters are fixed, and the light distribution element is fixedly engaged with the lamp panel to cover the corresponding light emitters.

17. The lamp according to claim 16 , wherein a circumferential density of the light emitters along a circumferential extension direction of the subsections is 2-5 per centimeters.

Assignees

• Opple Lighting Co Ltd
• Suzhou opple lighting co ltd

Inventors

• Liu Chaobo
• Wang Hongbo
• Wei Qingjun

Classifications

• F21V5/048 Primary

  the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21K9/69 Primary

  Details of refractors forming part of the light source · CPC title

• F21Y2103/30

  curved · CPC title

• F21Y2105/14

  characterised by the overall shape of the two-dimensional [2D] array · CPC title