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Zooming camera lens matched with 3CCD (Charge-Coupled Device) camera

A camera lens and zoom technology, applied in optics, instruments, optical components, etc., can solve the problems of short optical back focal length, long structure length, poor applicability, etc. The effect of the overall length of the structure

Active Publication Date: 2011-11-23
FUJIAN FORECAM OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they generally have defects such as long structural length, short optical back intercept, large chromatic aberration, low resolution, and poor applicability.

Method used

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  • Zooming camera lens matched with 3CCD (Charge-Coupled Device) camera
  • Zooming camera lens matched with 3CCD (Charge-Coupled Device) camera
  • Zooming camera lens matched with 3CCD (Charge-Coupled Device) camera

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] refer to Figure 1 to Figure 7 , a zoom camera lens adapted to a 3CCD camera, comprising a main lens barrel 1, in which a front fixed lens group A with a positive refractive power, a light Zoom lens group B with negative power, compensation lens group C with negative power, and rear fixed lens group D with positive power; the front fixed lens group A is composed of negative crescent lens A-1 and The double-concave lens A-2 is tightly bonded and the positive crescent lens A-3 is formed. The variable power lens group B is composed of the double-concave lens B-1, the negative crescent lens B-2 and the double-convex lens B-3. The compensation lens group C is composed of a double-concave lens C-1 and a positive crescent lens C-2. 2. It is composed of double-convex lens D-3 and double-concave lens D-4 in close contact with the glued group, positive crescent lens D-5, negative crescent lens D-6, and double-convex lens D-7.

[0021] The air gap between the above-mentioned fro...

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PUM

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Abstract

The invention relates to a zooming camera lens matched with a 3CCD (Charge-Coupled Device) camera. The zooming camera lens comprises a main lens cone and is characterized in that the main lens cone is provided with a front fixed lens group A having positive focal power, a zooming lens group B having negative focal power, a compensation lens group C having negative focal power and a rear fixed lens group D having positive focal power. The zooming camera lens can provide a photoelectric signal for a 1 / 2'' 3CCD colour camera and produce a clear colour video image to carry out real-time monitoring on far and near targets; the lens has high definition, low chromatic aberration, large rear cut-off distance and small structure length and function of presetting a focal length value.

Description

technical field [0001] The invention relates to a zoom camera lens adapted to a 3CCD camera, which is applied to a 3CCD camera and belongs to the field of optoelectronic technology. Background technique [0002] Such as Figure 8 As shown, the mechanically compensated zoom camera lens has been used in the field of video camera technology for 20 to 30 years. Its structure generally consists of four components: the front fixed group, the zoom lens group, the compensation group and the rear fixed group. However, they generally have defects such as long structural length, short optical back intercept, large chromatic aberration, low resolution, and poor applicability. Contents of the invention [0003] The object of the present invention is to provide a zoom camera lens adapted to a 3CCD camera, which is conducive to meeting the requirements of the 3CCD camera on lens resolution, low chromatic aberration, long back intercept, and short structural length. [0004] The present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B15/17G02B15/20G02B1/00
Inventor 周宝藏肖维军刘辉蔡清辉黄霞霞
Owner FUJIAN FORECAM OPTICS CO LTD
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