Image capturing module and lens shade thereof

Patent metadata

Field	Value
Publication number	US-10690999-B2
Application number	US-201715613229-A
Country	US
Kind code	B2
Filing date	Jun 4, 2017
Priority date	Dec 4, 2014
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

An image capturing module includes a casing, a lens component arranged in the casing, and a lens shade disposed directly facing the lens component and having a thin plate shape. The lens shade includes a first bottom surface close to the lens, a second bottom surface disposed opposite to the first bottom surface and away from the lens, a snap portion configured to snap the lens shade with the casing, and a light incoming pathway running through the lens shade to allow external light to enter the lens. The light incoming pathway includes a first light inlet formed at the first bottom surface and a second light inlet formed at the second bottom surface. A size of the second light inlet is greater than a size of the first light inlet.

First claim

What is claimed is:

1. An image capturing module comprising:
a casing including an upper casing, a lower casing, and an opening, the opening including a matching portion;
a lens component arranged in the casing and comprising a lens; and
a lens shade disposed directly facing the lens component and having a thin plate shape, the lens shade being received by the opening of the casing and snapped with the casing and comprising:
a first bottom surface close to the lens and including a first light inlet, the first bottom surface being arranged inside the casing and being closer to the lens than an inner wall of the casing in a direction along an optical axis of the lens;
a second bottom surface disposed opposite to the first bottom surface and away from the lens, and including a second light inlet;
a snap portion matching the matching portion of the opening and configured to fix the lens shade on the casing; and
a light incoming pathway running through the lens shade to allow external light to enter the lens, the light incoming pathway comprising the first light inlet and the second light inlet, and a size of the second light inlet being greater than a size of the first light inlet,

wherein:
the snap portion comprises one of a protruding rib that is at least partially annular and a snap slot, and the matching portion comprises another one of the protruding rib and the snap slot;
when the upper casing is connected to the lower casing, the protruding rib is snapped with the snap slot; and
when the upper casing is disconnected from the lower casing, the protruding rib is not snapped with the snap slot.

2. The image capturing module of claim 1 , wherein the lens shade has a discoid thin plate shape.

3. The image capturing module of claim 1 , wherein the second light inlet has a rectangular or a circular shape.

4. The image capturing module of claim 1 , wherein the first light inlet has a circular or a race-track shape.

5. The image capturing module of claim 1 , wherein a sidewall of the light incoming pathway comprises a slant surface.

6. The image capturing module of claim 1 , wherein the second light inlet has a rectangular shape, and a sidewall of the light incoming pathway comprises four slant surfaces extending from four lateral sides of the second light inlet towards the first light inlet.

7. The image capturing module of claim 1 , wherein the lens shade further comprises an annular retaining wall formed on the first bottom surface and being perpendicular to the first bottom, a shape and a size of a space surrounded by the retaining wall matching a shape and a size of the lens, respectively, and the retaining wall being configured to limit a position of the lens.

8. The image capturing module of claim 1 , wherein:
the lens shade comprises a lens shade body and a bottom cover connected to a side of the lens shade body close to the lens,
the light incoming pathway runs through the lens shade body and the bottom cover,
the first bottom surface comprises a surface on one end of the bottom cover that faces the lens,
the lens shade body comprises a first end and a second end, the first end being opposite to the second end and being further away from the lens than the second end, and
the second bottom surface comprises a surface on the first end of the lens shade body.

9. The image capturing module of claim 8 , wherein:
the lens shade forms a hollow casing,
a surface on the second end of the lens shade body comprises an opening hole, and
a size of the opening hole is greater than a size of the second light inlet.

10. The image capturing module of claim 9 , wherein:
a shape and a size of the bottom cover match a shape and a size of the opening hole, respectively,
the lens shade body comprises a first positioning portion and a first fastening portion formed at the opening hole,
the bottom cover comprises a second positioning portion matching the first positioning portion and a second fastening portion matching the first fastening portion, and
the first positioning portion and the second positioning portion are configured to match each other to position the bottom cover, and the first fastening portion and the second fastening portion are configured to match each other to connect the bottom cover to the lens shade body.

11. The image capturing module of claim 10 , wherein the first fastening portion comprises an elastic arm protruding from a portion on a sidewall of the lens shade body close to the opening hole, and the second fastening portion comprises a snap slot or a stepped surface formed on an outer sidewall of the bottom cover and matching the elastic arm.

12. The image capturing module of claim 10 , wherein the first positioning portion comprises a notch disposed at the opening hole, and the second positioning portion comprises a protruding portion protruding from an outer sidewall of the bottom cover and matching the notch.

13. The image capturing module of claim 8 , wherein:
the lens shade body comprises a first fastening portion,
the bottom cover comprises a second fastening portion matching the first fastening portion, and
the first fastening portion and the second fastening portion are configured to match each other to connect the bottom cover to the lens shade body.

14. The image capturing module of claim 13 , wherein the first fastening portion comprises an elastic arm protruding from a sidewall of the lens shade body, and the second fastening portion comprises a snap slot or a stepped surface formed on an outer sidewall of the bottom cover and matching the elastic arm.

15. The image capturing module of claim 13 , wherein:
the lens shade body comprises a first positioning portion,
the bottom cover comprises a second positioning portion matching the first positioning portion, and
the first positioning portion and the second positioning portion are configured to match each other to position the bottom cover.

16. The image capturing module of claim 15 , wherein the first positioning portion comprises a notch formed on the lens shade body, and the second positioning portion comprises a protruding portion protruding from an outer sidewall of the bottom cover and matching the notch.

17. The image capturing module of claim 1 , further comprising:
a filter component connected on the lens shade.

Assignees

• Sz Dji Technology Co Ltd

Inventors

• Tang Yin
• Yang Feihu
• Qiu Hualiang

Classifications

• G03B2217/002

  Details of arrangement of components in or on camera body · CPC title

• G03B11/04

  Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids · CPC title

• G03B15/006

  Apparatus mounted on flying objects · CPC title

• G03B11/041

  Lens caps as separate accessory (accessories in general G03B17/56) · CPC title

• G03B11/043 Primary

  Protective lens closures or lens caps built into cameras · CPC title