Light emitting module and lighting device using the same

Patent metadata

Field	Value
Publication number	US-11255489-B2
Application number	US-201916660912-A
Country	US
Kind code	B2
Filing date	Oct 23, 2019
Priority date	Apr 26, 2017
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

The disclosure provides a light emitting module and a lighting device using the light emitting module. The light emitting module includes a light source component, and several light guide sheets arranged at a periphery of the light source component, the light source component includes several groups of light source strips vertically arranged, and each group of light source strips is covered with one of the light guide sheets.

First claim

What is claimed is:

1. A light emitting module, comprising a light source component, and several light guide sheets arranged at a periphery of the light source component, wherein the light source component comprises several groups of light source strips vertically arranged, and each group of light source strips is covered with one of the light guide sheets, wherein the light emitting module further comprises a pedestal, and the pedestal comprises an annular side wall, wherein accommodation grooves and slots are formed to extend vertically on an outer surface of the side wall.

2. The light emitting module according to claim 1 , wherein each group of light source strips and its corresponding light guide sheet form a light emitting module unit, and light emitting module units are distributed uniformly on the light emitting module.

3. The light emitting module according to claim 1 , wherein each group of light source strips and its corresponding light guide sheet form a light emitting module unit, and the light emitting module is arranged in an aggregation to dispersion state from inner to outer side.

4. The light emitting module according to claim 1 , wherein the light emitting module emits light at an angle of 360°.

5. The light emitting module according to claim 1 , wherein the light source strips are located in the accommodation grooves, and inner sides of the light guide sheets are inserted into the slots to cover the light source strips.

6. The light emitting module according to claim 5 , wherein the outer surface of the side wall is provided with several positioning strips which protrude outwards and extend vertically, and the accommodation grooves and the slots located at a periphery of the accommodation grooves are formed between adjacent positioning strips.

7. The light emitting module according to claim 5 , wherein a length of each of the light guide sheets in a radial direction is greater than a radius of the pedestal.

8. The light emitting module according to claim 1 , wherein each of the light source strips comprises a substrate, a LED light source is provided on the substrate, and the light source component comprises a light source adaptor plate which is located at a tail end of the pedestal and is connected with the substrate.

9. The light emitting module according to claim 1 , wherein each of the light guide sheets comprises an inner prismatic surface facing a light source strip, an outer prismatic surface opposite to the inner prismatic surface, and a first side surface and a second side surface which are opposite to each other and connected between the inner prismatic surface and the outer prismatic surface, wherein the first side and second side surfaces are both total reflection surfaces, and light rays emitted from the light source enter the light guide sheet and then are emergent from the outer prismatic surface.

10. The light emitting module according to claim 9 , wherein the outer prismatic surface of the light guide sheet extends to form a light emitting surface which emits light at least at an angle of 180 degrees.

11. The light emitting module according to claim 9 , wherein parts of the first side and second side surfaces close to the inner prismatic surface are subject to laser dotting or a silk screen.

12. The light emitting module according to claim 1 , wherein one end of each of the light guide sheets has a catch snap jointed with the pedestal.

13. The light emitting module according to claim 12 , wherein the other end of each of the light guide sheets has a protrusion portion.

14. The light emitting module according to claim 13 , wherein the light emitting module further comprises a fixing component which comprises a first fixing member and a second fixing member, wherein the first and second fixing members are located at two ends of the light guide sheets and are connected with the pedestal for fixing the light guide sheets to the pedestal.

15. The light emitting module according to claim 14 , wherein the first fixing member comprises a first through groove and a first slot, each group of light source strips comprises a substrate which passes through the first through groove, and the protrusion portion of each of the light guide sheets is plugged in the first slot.

16. The light emitting module according to claim 15 , wherein the second fixing member is provided with several positioning covers for covering the catch.

17. A lighting device, comprising a base module, and a light emitting module that is assembled at one end of the base module, wherein the light emitting module comprises a light source component, and several light guide sheets arranged at a periphery of the light source component, wherein the light source component comprises several groups of light source strips vertically arranged, and each group of light source strips is covered with one of the light guide sheets, wherein the light emitting module further comprises a pedestal, and the pedestal comprises an annular side wall, wherein accommodation grooves and slots are formed to extend vertically on an outer surface of the side wall.

18. The lighting device according to claim 17 , wherein the light source strips are located in the accommodation grooves, and inner sides of the light guide sheets are inserted into the slots to cover the light source strips.

19. A method of manufacturing a light emitting module, comprising:
providing a light source component;
arranging several light guide sheets at a periphery of the light source component;
vertically arranging several groups of light source strips comprised in the light source component; and
covering each group of light source strips with one of the light guide sheets, wherein the light emitting module further comprises a pedestal, and the pedestal comprises an annular side wall, wherein accommodation grooves and slots are formed to extend vertically on an outer surface of the side wall.

20. The method according to claim 19 , wherein each of the light guide sheets comprises an inner prismatic surface facing a light source strip, an outer prismatic surface opposite to the inner prismatic surface, and a first side surface and a second side surface which are opposite to each other and connected between the inner prismatic surface and the outer prismatic surface, wherein the first side and second side surfaces are both total reflection surfaces, and light rays emitted from the light source enter the light guide sheet and then are emergent from the outer prismatic surface.

Assignees

• Opple Lighting Co Ltd
• Suzhou opple lighting co ltd

Inventors

• Xu Xiaowei
• Wang Hongbo
• Feng Xuejun
• Li Feng

Classifications

• F21V19/001

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

• F21Y2107/40

  on the sides of polyhedrons, e.g. cubes or pyramids · CPC title

• F21V17/164

  the parts being subjected to bending, e.g. snap joints · CPC title

• F21K9/61 Primary

  using light guides · CPC title

• F21V19/0045

  by tongue and groove connections, e.g. dovetail interlocking means fixed by sliding · CPC title