Light-emitting module and camera module

Patent metadata

Field	Value
Publication number	US-2021160408-A1
Application number	US-201917267675-A
Country	US
Kind code	A1
Filing date	Sep 11, 2019
Priority date	Sep 13, 2018
Publication date	May 27, 2021
Grant date	—

Abstract

The present embodiment relates to a light-emitting module comprising: a substrate; a light source which is arranged on the substrate and emits laser light; a holder arranged on the substrate; a diffuser lens arranged in the holder and over the light source; and a diffuser ring for supporting the diffuser lens, wherein the diffuser lens comprises a plurality of microlenses, and the holder comprises an opening formed above the diffuser lens and a stopping protrusion for preventing inhibiting the diffuser lens from being separated through the opening.

First claim

1 . A light emitting module comprising:
a substrate; a light source disposed above the substrate and emitting laser light; a holder disposed above the substrate; a diffuser lens disposed in the holder and disposed above the light source; and a diffuser ring disposed between the diffuser lens and the light source, wherein the diffuser lens comprises a plurality of micro lenses, and wherein the holder comprise an opening formed above the diffuser lens and a stopping protrusion configured to inhibit the diffuser lens from being separated through the opening.

2 . The light emitting module of claim 1 , wherein an upper surface of the diffuser lens is greater in size than a size of the opening.

3 . The light emitting module of claim 1 , wherein at least a portion of the opening is defined by at least a portion of the stopping protrusion.

4 . The light emitting module of claim 1 , wherein the diffuser ring comprises a support portion contacting with a lower portion of the diffuser lens and a ring portion protruding from an outer periphery of the support portion.

5 . The light emitting module of claim 4 , wherein the diffuser lens comprises a lens portion and a flange portion disposed on an outer periphery of the lens portion.

6 . The light emitting module of claim 5 , wherein the diffuser lens comprises a protrusion protruding from a portion of a lower surface of the flange portion.

7 . The light emitting module of claim 6 , wherein the protrusion has a ring shape.

8 . The light emitting module of claim 6 , wherein a gap is formed in at least a portion between the diffuser lens and the diffuser ring by the protrusion.

9 . The light emitting module of claim 6 , wherein the protrusion is formed adjacent to an inner peripheral surface than an outer peripheral surface of the flange portion.

10 . A camera module comprising:
a substrate; a holder comprising a partition wall and disposed above the substrate; a light source disposed at one side of the partition wall above the substrate and emitting laser light; a sensor disposed above the substrate at the other side of the partition wall; a lens coupled to the holder and disposed above the sensor; a diffuser lens coupled to the holder and disposed above the light source; and a diffuser ring disposed between the diffuser lens and the light source, wherein the diffuser lens comprises a plurality of micro lenses, and wherein the holder comprises an opening formed above the diffuser lens and a stopping protrusion configured to inhibit the diffuser lens from being separated through the opening.

11 . The light emitting module of claim 1 , wherein a portion of the diffuser lens is disposed between the diffuser ring and the stopping protrusion of the holder in a vertical direction.

12 . The light emitting module of claim 1 , wherein the diffuser lens comprises a protruding portion protruding from an outer peripheral surface of the diffuser lens, and
wherein the holder comprises a first groove accommodating at least a portion of the protruding portion of the diffuser lens.

13 . The light emitting module of claim 12 , wherein the diffuser ring comprises a protruding portion protruding from an outer peripheral surface of the diffuser ring, and
wherein the holder comprises a second groove accommodating at least a portion of the protruding portion of the diffuser ring.

14 . The light emitting module of claim 13 , wherein at least a portion of the protruding portion of the diffuser ring is overlapped with the protruding portion of the diffuser lens in a vertical direction.

15 . A camera module comprising:
the light emitting module of claim 1 ; a sensor disposed on the substrate; and a lens coupled with the holder and disposed above the sensor, wherein the holder comprises a partition wall, and wherein the light source is disposed at one side of the partition wall and the sensor is disposed at an other side of the partition wall.

16 . An optical apparatus comprising:
a main body; the camera module of claim 15 , disposed on the main body; and
a display disposed on the main body outputting an information captured by the camera module.

17 . The camera module of claim 10 , wherein a portion of the diffuser lens is disposed between the diffuser ring and the stopping protrusion of the holder in a vertical direction.

18 . The camera module of claim 10 , wherein the diffuser ring comprises a support portion contacting with a lower portion of the diffuser lens and a ring portion protruding from an outer periphery of the support portion, and
wherein the diffuser lens comprises a lens portion, a flange portion disposed on an outer periphery of the lens portion, and a protrusion protruding from a portion of a lower surface of the flange portion.

19 . The camera module of claim 10 , wherein the diffuser lens comprises a protruding portion protruding from an outer peripheral surface of the diffuser lens,
wherein the diffuser ring comprises a protruding portion protruding from an outer peripheral surface of the diffuser ring, and wherein at least a portion of the protruding portion of the diffuser ring is overlapped with the protruding portion of the diffuser lens in a vertical direction.

20 . A light emitting module comprising:
a substrate; a light source disposed above the substrate and emitting laser light; a holder disposed above the substrate; a diffuser lens disposed in the holder and disposed above the light source; and a diffuser ring disposed between the diffuser lens and the light source, wherein the diffuser lens comprises a plurality of micro lenses, and wherein a portion of the diffuser lens is disposed between the diffuser ring and the stopping protrusion of the holder in a vertical direction.

Assignees

• Lg Innotek Co Ltd

Inventors

• Park Kang Yeol
• Lee Hee Se
• Kim Sung Phil

Classifications

• H04N23/55

  Optical parts specially adapted for electronic image sensors; Mounting thereof · CPC title

• H04N23/56 Primary

  provided with illuminating means · CPC title

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• H04M1/0264 Primary

  for a camera module assembly · CPC title

• H04M1/22 Primary

  Illumination; Arrangements for improving the visibility of characters on dials · CPC title