CN216531466U

CN216531466U - High dynamic light sensing chip, camera and electronic equipment

Info

Publication number: CN216531466U
Application number: CN202122799111.1U
Authority: CN
Inventors: 吴光斯; 黄长发
Original assignee: Truly Opto Electronics Ltd
Current assignee: Truly Opto Electronics Ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-05-13
Anticipated expiration: 2031-11-15

Abstract

The embodiment of the utility model discloses a high dynamic photosensitive chip, which comprises: a photosensitive element, a color filter matrix, a micro lens and variable glass; the color filter matrix is arranged above the photosensitive element; the micro lens is arranged above the color filter matrix; the variable glass is arranged above the micro lens. The embodiment of the utility model also provides the electronic equipment, and the variable glass is arranged above the micro lens, so that the optical signal can be controlled, and the over-exposure phenomenon in the scene of the highlight field is avoided.

Description

High dynamic light sensing chip, camera and electronic equipment

Technical Field

The utility model relates to the technical field of electronic equipment, in particular to a high dynamic range photosensitive chip, a camera and electronic equipment.

Background

In a High-brightness lighting scene, such as a High building, which is overexposed by sunlight, the effect of the shot photos is often not good, and with the higher requirements of people on the quality of the photos, the scenes are optimized by using some technologies through a software or hardware method, the early-stage High Dynamic Range (HDR) image technology mainly uses a plurality of different exposure pictures to be synthesized, the working principle is that two continuously shot pictures are combined in a mode that one picture is low-exposed and the other picture is High-exposed, and finally the two pictures are combined into one picture to be presented, this is software and then hardware HDR techniques, such as performing a set of short exposures, a set of long exposures, and finally taking a row of better pixels for two rows of pixels, respectively, this comparison in hardware may be better than software, however, for some surveillance cameras, the application of the automobile data recorder camera shooting to acquire more detailed information is still slightly insufficient.

Disclosure of Invention

In order to at least solve the above technical problem, an embodiment of the present invention provides a high dynamic photosensitive chip, in which variable glass is disposed above a microlens, so that optical signals are controllable, and an overexposure phenomenon in a high-brightness scene is avoided.

In order to achieve the above object, an embodiment of the present invention provides a high dynamic photosensitive chip, including:

a photosensitive element, a color filter matrix, a micro lens and variable glass; the color filter matrix is arranged above the photosensitive element; the micro lens is arranged above the color filter matrix; the variable glass is arranged above the micro lens.

In some exemplary embodiments, the variable glass transitions to opaque when the pixel light signal reaches a threshold.

In some exemplary embodiments, the variable glass may be dynamically adjusted on and off.

In some exemplary embodiments, the variable glass is controlled by a register parameter setting voltage value.

In order to achieve the above object, an embodiment of the present invention further provides a camera, including the above high dynamic photosensitive chip.

In order to achieve the above object, an embodiment of the present invention further provides an electronic device, including the high dynamic photosensitive chip.

The high dynamic photosensitive chip of the embodiment of the utility model comprises: a photosensitive element, a color filter matrix, a micro lens and variable glass; the color filter matrix is arranged above the photosensitive element; the micro lens is arranged above the color filter matrix; the variable glass is arranged above the micro lens; the variable glass is arranged above the micro lens, so that the controllability of optical signals is achieved, the overexposure phenomenon under a high-brightness light environment is avoided, and the dynamic range of a picture is adjusted by dynamically adjusting the opening and closing of the variable glass.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, reference will now be made briefly to the attached drawings, which are needed in the description of one or more embodiments or prior art, and it should be apparent that the drawings in the description below are only some of the embodiments described in the specification, and that other drawings may be obtained by those skilled in the art without inventive exercise.

FIG. 1 is a schematic diagram of a high dynamic photosensitive chip according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Description of reference numerals:

101-a photosensitive element; 102-a color filter matrix; 103-micro lenses; 104-variable glass.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

The embodiment of the utility model provides a high dynamic photosensitive chip, which comprises:

Example 1

Fig. 1 is a schematic structural diagram of a high dynamic state photosensitive chip according to an embodiment of the present invention, and the high dynamic state photosensitive chip according to the embodiment of the present invention will be described in detail with reference to fig. 1.

Fig. 1 of the embodiment of the present invention is only for explaining the present embodiment and is not intended to limit the structural shape of the present embodiment.

The high dynamic photosensitive chip in embodiment 1 of the present invention includes: a light-sensing element 101, a color filter matrix 102, a microlens 103, and a variable glass 104.

In some exemplary embodiments, the color filter matrix 102 is disposed over the photosensitive elements 101.

In some exemplary embodiments, the color filter matrix 102 includes color filters.

In some exemplary embodiments, the light sensing element 101 includes a photodiode.

In some exemplary embodiments, microlenses 103 are disposed over color filter matrix 102.

In some exemplary embodiments, the microlens 103 includes a Micro Lens.

In some exemplary embodiments, the variable glass 104 is laid over the Micro Lens of each pixel.

In some exemplary embodiments, the variable glass 104 is disposed over the microlenses 103.

In some exemplary embodiments, the variable glass 104 transitions to opaque when the pixel light signal reaches a threshold.

In some exemplary embodiments, the variable glass 104 can be directly opaque when the pixel light signal reaches overflow, directly preventing the collection of light energy, and avoiding the overexposure of the picture

In some exemplary embodiments, the threshold may be preset or may be a parameter that is self-adjusted according to actual usage requirements.

In some exemplary embodiments, the variable glass is controlled by setting a voltage value through a register parameter, and can realize dynamic adjustment of opening and closing, thereby adjusting the dynamic range of a picture.

Example 2

Fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 2, the electronic device includes, on a hardware level, a processor, and optionally a bus, a network interface, and a memory. The Memory may include a Memory, such as a Random-Access Memory (RAM), and may further include a non-volatile Memory, such as at least 1 disk Memory. Of course, the electronic device may also include hardware required for other services.

The processor, the network interface, and the memory may be connected to each other via a bus, which may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 2, but this does not indicate only one bus or one type of bus.

And the memory is used for storing programs. In particular, the program may include program code including computer operating instructions.

In some exemplary embodiments, the electronic device includes the above-described high dynamic photosensitive chip.

In some exemplary embodiments, the electronic device includes a camera to which the above-described high-dynamic photosensitive chip is applied.

In some exemplary embodiments, the electronic device includes a vehicle event recorder, a monitoring device, and the like, to which the above-described high-dynamic-state photosensitive chip is applied.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A high dynamic photosensitive chip, comprising: a photosensitive element, a color filter matrix, a micro lens and variable glass; the color filter matrix is arranged above the photosensitive element; the micro lens is arranged above the color filter matrix; the variable glass is arranged above the micro lens.

2. The high dynamic photo sensor chip of claim 1, wherein said variable glass is rendered opaque when a pixel light signal reaches a threshold value.

3. The high dynamic photosensitive chip of claim 1, wherein said variable glass can be dynamically adjusted on and off.

4. The high dynamic photo sensor chip of claim 3, wherein said variable glass is controlled by register parameter setting voltage values.

5. A camera, characterized by comprising the high dynamic light sensing chip of any one of claims 1 to 4.

6. An electronic device, comprising the high-dynamic photosensitive chip of any one of claims 1 to 4.