Photochromic lens module, camera and terminal device

Patent metadata

Field	Value
Publication number	US-10444552-B2
Application number	US-201515576612-A
Country	US
Kind code	B2
Filing date	May 25, 2015
Priority date	May 25, 2015
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

Embodiments of the present invention disclose a photochromic lens module, a camera, and a terminal device. The photochromic lens module includes a lens module and a photochromic thin film. The lens module includes a first surface and a second surface. When the first surface is an incident surface, the second surface is a refractive surface; when the second surface is an incident surface, the first surface is a refractive surface. The photochromic thin film includes a first area and a second area. The photochromic thin film covers the first surface or the second surface. The first area uses a negative photochromic material, and the second area uses a positive photochromic material. By means of the embodiments of the present invention, a lens module can be effectively protected.

First claim

What is claimed is:

1. A photochromic lens module, comprising:
a lens module; and
a photochromic thin film;
wherein the lens module comprises a first surface and a second surface, the first surface is an incident surface, and the second surface is a refractive surface; and
wherein the photochromic thin film comprises a first area and a second area, the photochromic thin film covers the first surface, the first area uses a negative photochromic material, and the second area uses a positive photochromic material, wherein the negative photochromic material is configured to display a color when not exposed to a radiation and to be transparent when exposed to the radiation, and the positive photochromic material is configured to be transparent when not exposed to the radiation and to display a color when exposed to the radiation.

2. The photochromic lens module according to claim 1 , further comprising:
a mask, wherein the mask comprises a transparent area and an opaque area, the mask covers the photochromic thin film, the transparent area covers the first area, and the opaque area covers the second area.

3. The photochromic lens module according to claim 2 , wherein the mask further comprises:
a transparent substrate; and
a light shielding layer;
wherein the light shielding layer covers the transparent substrate, the opaque area comprises the transparent substrate and the light shielding layer, and the transparent area comprises the transparent substrate.

4. The photochromic lens module according to claim 1 , wherein a thickness of the photochromic thin film is 10 nm to 1 μm.

5. The photochromic lens module according to claim 1 , wherein the first area comprises at least one sub-area, and a diameter of the sub-area is 2 μm to 10 mm.

6. A camera, comprising:
a photochromic lens module;
an image sensor; and
a bracket;
wherein the photochromic lens module is connected to the image sensor by the bracket;
wherein the photochromic lens module comprises a lens module and a photochromic thin film, wherein the lens module comprises a first surface and a second surface; and
wherein the photochromic thin film comprises a first area and a second area, the photochromic thin film covers the first surface, the first area uses a negative photochromic material, and the second area uses a positive photochromic material, and wherein the first area comprises a plurality of sub-areas that are respectively disposed in and surrounded by the second area.

7. The camera according to claim 6 , wherein the photochromic lens module further comprises:
a mask, wherein the mask comprises a transparent area and an opaque area, the mask covers the photochromic thin film, the transparent area covers the first area, and the opaque area covers the second area.

8. The camera according to claim 7 , wherein the mask further comprises a transparent substrate and a light shielding layer; and
wherein the light shielding layer covers the transparent substrate, the opaque area comprises the transparent substrate and the light shielding layer, and the transparent area comprises the transparent substrate.

9. The camera according to claim 6 , further comprising an infrared cut-off filter, wherein the infrared cut-off filter is located between the photochromic lens module and the image sensor.

10. The camera according to claim 9 , further comprising a focus motor, wherein the focus motor is located between the photochromic lens module and the infrared cut-off filter.

11. A terminal, comprising:
a display screen;
a processor; and
a camera, wherein the camera comprises a photochromic lens module and an image sensor, the photochromic lens module is configured to capture an image, and the image sensor is configured to convert the captured image into an electrical signal, and convert the electrical signal into a digital signal;
wherein the processor is configured to process the digital signal;
wherein the display screen displays the image under control of the processor;
wherein the photochromic lens module comprises a lens module and a photochromic thin film, and the lens module comprises a first surface and a second surface; and
wherein the photochromic thin film comprises a first area and a second area, the photochromic thin film covers the first surface, the first area uses a negative photochromic material, and the second area uses a positive photochromic material, and wherein the first area and the second area are positioned side by side along the first surface.

12. The terminal according to claim 11 , wherein the photochromic lens module further comprises a mask, the mask comprises a transparent area and an opaque area, the mask covers the photochromic thin film, the transparent area covers the first area, and the opaque area covers the second area.

13. The terminal according to claim 12 , wherein the mask further comprises a transparent substrate and a light shielding layer, the light shielding layer covers the transparent substrate, the opaque area comprises the transparent substrate and the light shielding layer, and the transparent area comprises the transparent substrate.

14. The terminal according to claim 11 , wherein the camera further comprises an infrared cut-off filter, and the infrared cut-off filter is located between the photochromic lens module and the image sensor.

15. The terminal according to claim 14 , wherein the camera further comprises a focus motor, and the focus motor is located between the photochromic lens module and the infrared cut-off filter.

16. The terminal according to claim 11 , wherein the camera further comprises a line connection substrate, the line connection substrate is disposed at the bottom of the image sensor, and the image sensor is located between the photochromic lens module and the line connection substrate.

17. The terminal according to claim 11 , wherein the camera further comprises an optical protection window, the optical protection window is disposed at the top of the photochromic lens module, and the photochromic lens module is located between the optical protection window and the image sensor.

18. The terminal according to claim 11 , wherein the terminal is a mobile phone, a tablet computer, a computer or a digital camera.

Assignees

• Huawei Tech Co Ltd

Inventors

• Ye Haishui
• Yu Feng
• Wen Xiaojiong
• Zhao Jiahui

Classifications

• H04N23/55

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

• G02B13/001

  Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras (G02B23/243 takes precedence) · CPC title

• G03B17/02

  Bodies · CPC title

• G02B5/201

  in the form of arrays · CPC title

• G02B5/23

  Photochromic filters · CPC title