Optical lens, camera module, and assembly method for the optical lens

Patent metadata

Field	Value
Publication number	US-12204167-B2
Application number	US-202017426878-A
Country	US
Kind code	B2
Filing date	Jan 3, 2020
Priority date	Feb 3, 2019
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

The optical lenses include a first lenses part including a first lens and a second lenses part including a second lens. The second lens and the first lens constitute an imageable optical system. A first adhesive material is located in a first gap between the first and second lenses parts, the first adhesive material supporting and fixing the first and second lenses parts. The first lenses part has a first bottom surface, and the second lenses part has a second top surface. An adhesive applying area for arranging the first adhesive material is provided on the first bottom surface and/or the second top surface. A first adhesive blocking portion is provided on the first bottom surface and/or a third adhesive blocking portion is provided on the second top surface.

First claim

The invention claimed is:

1. Optical lenses comprising:
a first lenses part including at least one first lens;
a second lenses part including at least one second lens, wherein the at least one second lens together with the at least one first lens constitute an imaging optical system; and
a first adhesive material located in a first gap between the first lenses part and the second lenses part, and adapted for supporting and fixing the first lenses part and the second lenses part after being cured;
wherein, the first lenses part has a first bottom surface, and the second lenses part has a second top surface, and an adhesive applying area for arranging the first adhesive material is provided on the first bottom surface or the second top surface;
a first adhesive blocking portion is provided on the first bottom surface, or a third adhesive blocking portion is provided on the second top surface; and
the first adhesive blocking portion is a groove or a boss, and the third adhesive blocking portion is a groove or a boss, and in case that the first adhesive blocking portion is a groove, the width of the first adhesive blocking portion is 0.01-0.3 mm, and the depth of the first adhesive blocking portion is 0.02-0.1 mm.

2. The optical lenses according to claim 1 , wherein the first lenses part further includes a first lens barrel, and the at least one first lens is mounted in the first lens barrel, and the second lenses part also includes a second lens barrel, and the at least one second lens is mounted in the second lens barrel;
wherein, the first lens barrel has the first bottom surface, and the second lens barrel has the second top surface, and the adhesive applying area for arranging the first adhesive material is provided on the first bottom surface or the second top surface; and
the at least one first lens has a first optical region, and the at least one second lens has a second optical region, and the first adhesive blocking portion is located between the adhesive applying area and the first optical region; or the third adhesive blocking portion is located between the adhesive applying area and the second optical region.

3. The optical lenses according to claim 1 , wherein the at least one first lens includes a first optical region and a first non-optical region, and the first non-optical region is arranged outside the first optical region, and the second lenses part further includes a second lens barrel, and the at least one second lens is mounted inside the second lens barrel;
wherein the first non-optical region has the first bottom surface, and the second lens barrel has the second top surface, and the adhesive applying area for arranging the first adhesive material is provided on the first bottom surface or the second top surface; and
the at least one second lens has a second optical region, and the first adhesive blocking portion is located between the adhesive applying area and the first optical region; or the third adhesive blocking portion is located between the adhesive applying area and the second optical region.

4. The optical lenses according to claim 2 , wherein the at least one first lens has an outer side surface, and the first lens barrel has a first inner side surface;
wherein the outer side surface of the at least one first lens and the first inner side surface of the first lens barrel are connected by a second adhesive material.

5. The optical lenses according to claim 4 , wherein the at least one first lens is more than one and has a first bottom surface, and the outer side surface of the lens near the first bottom surface of the at least one first lens is connected with the first inner side surface by the second adhesive material.

6. The optical lenses according to claim 1 wherein in the case that the first adhesive blocking portion is a boss, the width of the first adhesive blocking portion is 0.01-0.3 mm, and the height of the first adhesive blocking portion is 0.02-0.1 mm.

7. The optical lenses according to claim 1 wherein the third adhesive blocking portion is a groove, and the width of the third adhesive blocking portion is 0.2-1 mm, and the depth of the third adhesive blocking portion is 0.02-0.085 mm.

8. The optical lenses according to claim 1 wherein the third adhesive blocking portion is a boss, and the width of the third adhesive blocking portion is 0.2-1 mm, and the height of the third adhesive blocking portion is 0.02-0.085 mm.

9. The optical lenses according to claim 2 , wherein after being cured, the width of the first adhesive material is 0.15-1 mm, and the height of the first adhesive material is 0.04-0.1 mm.

10. The optical lenses according to claim 2 , wherein the first adhesive blocking portion is located between the adhesive applying area and the first optical region, and the first adhesive blocking portion includes a distal end away from the at least one first lens, and the first lens barrel has a first outer side surface, and the distance between the distal end of the first adhesive blocking portion and the first outer side surface is greater than or equal to 0.35 mm.

11. The optical lenses according to claim 2 , wherein the third adhesive blocking portion is located between the adhesive applying area and the second optical region, and the third adhesive blocking portion includes a distal end away from the at least one second lens, and the second lens barrel has a second outer side surface, and the distance between the distal end of the third adhesive blocking portion and the second outer side surface is greater than or equal to 0.45 mm.

12. The optical lenses according to claim 2 , wherein the first lens barrel has a first outer side surface, and a second adhesive blocking portion is provided between the first outer side surface and the adhesive applying area, and the second adhesive blocking portion is located on the first bottom surface.

13. The optical lenses according to claim 2 , wherein the first adhesive material is distributed on the first bottom surface or the second top surface in a ring shape, or the first adhesive blocking portion is distributed on the first bottom surface in a ring shape, or the third adhesive blocking portion is distributed on the second top surface in a ring shape.

14. The optical lenses according to claim 2 , wherein the second lens barrel has a second outer side surface, and the first adhesive material is in contact with the second outer side surface of the second lens barrel and is not in contact with the third adhesive blocking portion, or the first adhesive material is in contact with the second outer side surface of the second lens barrel and is in contact with the third adhesive blocking portion, or the first adhesive material is not in contact with the second outer side surface of the second lens barrel and is not in contact with the third adhesive blocking portion.

15. The optical lenses according to claim 2 , wherein a first adhesive blocking portion is provided on the first bottom surface, and the first adhesive blocking portion is located between the adhesive applying area and the first optical region, and a third adhesive blocking portion is provided on the second top surface, and the third adhesive blocking portion is located between the adhesive applying area and the second optical region;
wherein the first adhesive blocking portion includes a proximal end adjacent to the at least one first lens and a distal end away from the at least one first lens, and the third adhesive blocking portion includes a proximal end adjacent to the at least one second lens and a distal end away from the at least one second lens; and
the distal end

Assignees

• Ningbo Sunny Opotech Co Ltd

Inventors

• Chen Liefeng
• Mei Zhewen
• Tanaka Takehiko
• Sun Xinxiang
• Liu Lin

Classifications

• H04N23/55

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

• G03B17/12

  with means for supporting objectives, supplementary lenses, filters, masks, or turrets · CPC title

• G02B7/021 Primary

  for more than one lens · CPC title

• G02B7/025 Primary

  using glue · CPC title