High-sensitivity optical imaging system, method and device

An optical imaging system and high-sensitivity technology, which is applied in the field of high-sensitivity optical imaging systems, can solve the problem of low imaging sensitivity of imaging devices, and achieve the effects of low cost increase, high sensitivity, and wide application fields

Pending Publication Date: 2022-04-05
深圳同舟光电科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] In view of the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a high-sensitivity optical imaging system, method and device for solving the problem of low imaging sensitivity of the imaging device in the prior art

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  • High-sensitivity optical imaging system, method and device

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Embodiment Construction

[0034] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] It is to be understood by those skilled in the art that the foregoing general description and the following detailed description are exemplary and illustrative specific embodiments of the invention and are not intended to be limiting of the invention.

[0036] Herein the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion such that a process or method comprising a list of steps includes not only those steps, but may include steps not expressly listed or inherent in such process or method other steps. Likewise, one or more equ...

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Abstract

The invention relates to a high-sensitivity optical imaging system, method and device. A high-sensitivity optical imaging system comprises a light source, a half-reflecting mirror, a lens assembly, a sensing chip and a controller. The lens assembly comprises one or more optical lenses arranged according to the same axis. The half-reflecting mirror is arranged at a position behind the optical lens closest to an object to be measured; the light source is arranged above the reflecting surface of the semi-reflecting mirror facing the direction of the object to be measured; and the controller is used for driving one or more of all the moving mechanisms to perform micro movement, and imaging the surface of an object to be measured by combining the light source and the sensing chip with a gradient measurement algorithm or a contrast measurement algorithm. Based on micro-movement of related imaging elements, in cooperation with a gradient measurement algorithm or a contrast measurement algorithm, the sensitivity of optical imaging is improved, the cost increase is not obvious, convenience and rapidness are achieved, and the application field is wide.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to a high-sensitivity optical imaging system, method and device. Background technique [0002] The sensitivity of an imaging device is generally greatly affected by sensor noise. At present, there are two common types of image sensors, CMOS (Complementary Metal Oxide Semiconductor) type and CCD (Charge Coupled Device) type. The former is relatively cheap and common but has low sensitivity, while the latter has high sensitivity and cost and is commonly used in high-end applications. . Taking the CCD type as an example, its sensitivity is usually limited by shot noise, dark current noise, and read circuit noise. In order to increase imaging sensitivity, one method in the industry is to control the temperature of the sensor chip to be much lower than room temperature, but this greatly increases the cost and scope of application of the device, and the range of cooling and noise reductio...

Claims

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Application Information

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IPC IPC(8): G02B27/00H04N5/372
Inventor 周翔
Owner 深圳同舟光电科技有限公司
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