Panoramic image acquisition device

A technology of panoramic image and acquisition device, applied in the field of imaging, can solve the problems of low light quantity of the photosensitive module, difficult to control the installation accuracy, difficult to obtain a clear image, etc., to achieve a compact device design, increase the ability to obtain light, and improve the convergence effect. Effect

Inactive Publication Date: 2016-11-23
BOLY MEDIA COMM SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology has less distortion, but it needs to set discrete reflective elements, the installation accuracy is not easy to control, and the amount of light actually entering the photosensitive module is small, making it difficult to obtain a clear image
[0007] In addition, there is a catadioptric lens whose optical path is the same as figure 1 Approximate, but designed primarily to receive parallel light for telephoto purposes, not for panoramic imagery

Method used

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Examples

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Embodiment 1

[0020] An embodiment of the panoramic image acquisition device according to the present invention may refer to figure 2 , including a catadioptric lens group 110 and a photosensitive module 120 .

[0021] In this embodiment, the catadioptric lens group has a simple structure, consisting of a lens element 111 with a reflective surface 112 and a refractive surface 113 for converging incident light. The reflective surface is arranged on the back of the lens element 111, for example by The back of the lens element is coated with a reflective film to set the reflective surface, and the so-called back refers to the other side of the lens element opposite to the light incident surface. It is worth mentioning that in existing devices that rely on reflective surfaces to collect panoramic light, the ability to converge light mainly depends on the curved surface shape of the reflective surface, while in the present invention, due to the combination of reflective surfaces and refraction ...

Embodiment 2

[0030] According to another embodiment of the panoramic image acquisition device of the present invention, please refer to Figure 4 , including a catadioptric lens group 210 , a photosensitive module 220 and a lens support 230 .

[0031] The catadioptric lens group 210 includes two lens elements, and the reflection surface 211 is arranged on the back of the last lens element, so there are three refraction surfaces 212 , 213 , 214 . The number of lens elements of the catadioptric lens group according to the present invention can be 2 to 4, which is convenient for design and manufacture without excessive complexity.

[0032] In addition to the photosensitive device 221 and the base 222 for fixing, the photosensitive module 220 also includes a second lens group 223, which is arranged in front of the photosensitive device, and light is sensed by the photosensitive device after passing through the second lens group. The second lens group added to the photosensitive module can fur...

Embodiment 3

[0036] According to another embodiment of the panoramic image acquisition device of the present invention, please refer to Figure 5 , including a catadioptric lens group 310 and a photosensitive module 320 .

[0037] This embodiment provides a very compact structure, and the photosensitive module is directly installed on the catadioptric lens group, so that the lens support can be omitted. Specifically, the catadioptric lens group in this embodiment is composed of three lens elements. The top of the frontmost lens element has a depression, and the photosensitive module is fixed in the depression. The first lens element of . In addition to the photosensitive device 321 and the base 322 for fixing, the photosensitive module 320 also includes a second lens group 323 for automatic focusing. Since the top of the frontmost lens element needs to be provided with a depression to facilitate the installation of the photosensitive module, the frontmost refraction surface 312 (referrin...

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Abstract

A panoramic image acquisition device comprises a catadioptric lens group (210) and a photosensitive module (220). The catadioptric lens group has a reflecting surface (211) and at least one refractive surface (212, 313, 214) configured to converge incident light. The reflecting surface is disposed behind all of the refractive surfaces along a light incidence direction, such that incident light passes through all of the refractive surfaces, is reflected, passes through all of the refractive surfaces again, and is emitted. The photosensitive module is configured to sense convergent light that has passed through the catadioptric lens group. Since the panoramic image acquisition device employs the catadioptric lens group combining the refractive surface and the reflecting surface to collect incident light, a converging effect of the refractive surface cooperating with the reflecting surface can be enhanced exponentially. The panoramic image acquisition device greatly improves the capacity of a photosensitive module to acquire light with the same reflecting lens area, facilitates obtaining a clear image, and increases resolution.

Description

technical field [0001] The invention relates to the field of image technology, in particular to a panoramic image acquisition device. Background technique [0002] Generally, a device capable of collecting images of a 360-degree circular area is called a panoramic image collection device. With the development of digital imaging technology, especially the continuous improvement of the number of pixels and image processing capabilities, the use of panoramic image acquisition devices is becoming more and more common. [0003] The existing panoramic imaging technologies include the following: [0004] 1. Use an ordinary image acquisition device to rotate around the axis to shoot, and then stitch the images seamlessly to obtain a panoramic image. This method requires a large number of image stitching calculations, which is difficult to guarantee real-time performance, and cannot continuously shoot the same location, making it difficult to record coherent videos. [0005] 2. A ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B37/00G03B17/08H04N5/232
CPCG02B13/06
Inventor 胡笑平
Owner BOLY MEDIA COMM SHENZHEN
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