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An optical zoom system and zoom method based on a programmable orthogonal close-contact cylindrical lens

A technology of optical zoom and cylindrical lens, which is applied in the field of optical zoom and can solve problems such as practical limitations

Active Publication Date: 2018-07-17
SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the optical system composed of orthogonal close-fitting cylindrical lenses is a mechanical zoom system, and its practicability is still greatly limited. Therefore, the use of spatial light modulators for digital zoom has attracted widespread attention.

Method used

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  • An optical zoom system and zoom method based on a programmable orthogonal close-contact cylindrical lens
  • An optical zoom system and zoom method based on a programmable orthogonal close-contact cylindrical lens
  • An optical zoom system and zoom method based on a programmable orthogonal close-contact cylindrical lens

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Embodiment Construction

[0026] An embodiment of an optical zoom system and a zoom method based on a programmable orthogonal cylindrical lens proposed by the present invention will be described in detail below to further describe the present invention. It is necessary to point out that the following examples are only used for further description of the present invention, and cannot be interpreted as limiting the protection scope of the present invention. Those skilled in the art make some non-essential improvements and improvements to the present invention according to the above-mentioned content of the invention. Adjustment still belongs to the protection scope of the present invention.

[0027] According to the phase modulation principle of the spatial light modulator, the present invention uses a computer to generate a phase hologram of a programmable orthogonal close-contact cylindrical lens composed of vertical cylindrical lenses and horizontal cylindrical lenses with different focal lengths, and ...

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Abstract

The invention provides an optical zooming system and method based on a programmable orthogonal close-contact column lens. The system comprises a spatial optical modulator, a computer and an image sensor; the image sensor is arranged on the right side of the spatial optical modulator connected with the computer through a transmission line; under the control of the computer, the programmable orthogonal close-contact column lens is loaded onto the spatial optical modulator for zooming. The zooming system has the advantages that the structure is simplified, the size is reduced, the cost is relatively low, and a certain application prospect is provided.

Description

technical field [0001] The invention belongs to the field of optical zooming, in particular, the invention relates to an optical zooming system and a zooming method based on a programmable orthogonal close-contact cylindrical lens. Background technique [0002] With the development of science and technology and the improvement of living standards, people have higher and higher requirements for optical zoom systems. The traditional mechanical zoom system is composed of several groups of lens units with fixed focal lengths. The focal length of the system is changed by mechanically changing the distance between the lens units, and the requirements for the movement of the lens units are very strict, resulting in the traditional mechanical zoom. The system has problems such as complex structure, bulky volume, high production cost and narrow scope of application. Since the mechanical zoom system is limited by many factors, people are eager to find an active zoom method to replace...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03H1/12G02B5/32
Inventor 王琼华魏溶王迪
Owner SICHUAN UNIV
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