A Spherical Lens Non-Focusing Digital Imaging System Based on Vision Sensor

Abstract

The invention belongs to the technical field of image acquisition, and specifically relates to a vision-based sensor that can be used in optical systems such as various large-scale astronomical telescopes. A non-focusing digital imaging system with spherical lenses. The present invention is composed of a large lens 1, a visual sensor group 2, a visual sensor control circuit 3, an image acquisition card 4 and a host computer 5. The light of the starry sky and celestial bodies passes through the large lens 1 and converges on the visual sensor group 2; the visual sensor control circuit 3 controls the area array visual sensor to collect data and output the gray value of the digital signal. The present invention adopts the visual sensor group 2 spliced ​​together by small area array visual sensors to collect images before the large lens 1 focuses. Vision sensors are relatively cheap to manufacture and simple to implement compared to compensating optics.

Description

technical field

[0001] The invention belongs to the field of image acquisition technology, and specifically relates to a vision-based sensor that can be used in optical systems such as various large-scale astronomical telescopes to collect unfocused images on the exit surface and directly restore the unfocused images. Spherical lens non-focusing digital imaging system. Background technique

[0002] For optical systems such as large astronomical telescopes, collecting distant celestial bodies such as stars requires very large-diameter spherical mirrors as objective lenses. The lenses used for these large optical systems usually have a diameter of hundreds of meters, for example: the 300-meter-diameter Arecibo telescope in the United States, and the 100-meter-diameter telescope in Bonn, Germany. The diameter of large astronomical telescopes is very large, which also leads to many problems that are satisfactorily avoided. For example, if the diameter of the objective lens is ...

Examples

Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Wherein (1) is a large lens. (2) is a CCD sensor group. (3) is the visual sensor control circuit. (4) is an image acquisition card. (5) is the upper computer.

[0019] The invention relates to a non-focus digital imaging method of a spherical lens based on a visual sensor. The invention can be used in optical systems such as various large-scale astronomical telescopes. digital imaging. The invention proposes a defocused image acquisition instrument using a large number of small area array vision sensors. The invention can avoid the problems of focus heating and aberration of the large convex lens.

[0020] The invention is composed of a large lens (1), a visual sensor group (2), a visual sensor control circuit (3), an image acquisition card (4) and a host computer (5). The large-scale lens (1) collects the light of the starry sky and celestial bodies, and...

technical field

[0001] The invention belongs to the field of image acquisition technology, and specifically relates to a vision-based sensor that can be used in optical systems such as various large-scale astronomical telescopes to collect unfocused images on the exit surface and directly restore the unfocused images. Spherical lens non-focusing digital imaging system. Background technique

[0002] For optical systems such as large astronomical telescopes, collecting distant celestial bodies such as stars requires very large-diameter spherical mirrors as objective lenses. The lenses used for these large optical systems usually have a diameter of hundreds of meters, for example: the 300-meter-diameter Arecibo telescope in the United States, and the 100-meter-diameter telescope in Bonn, Germany. The diameter of large astronomical telescopes is very large, which also leads to many problems that are satisfactorily avoided. For example, if the diameter of the objective lens is ...

Examples

Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Wherein (1) is a large lens. (2) is a CCD sensor group. (3) is the visual sensor control circuit. (4) is an image acquisition card. (5) is the upper computer.

[0019] The invention relates to a non-focus digital imaging method of a spherical lens based on a visual sensor. The invention can be used in optical systems such as various large-scale astronomical telescopes. digital imaging. The invention proposes a defocused image acquisition instrument using a large number of small area array vision sensors. The invention can avoid the problems of focus heating and aberration of the large convex lens.

[0020] The invention is composed of a large lens (1), a visual sensor group (2), a visual sensor control circuit (3), an image acquisition card (4) and a host computer (5). The large-scale lens (1) collects the light of the starry sky and celestial bodies, and...

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