High-resolution and strong fog-penetrating TV camera zoom lens

A high-resolution, zoom lens technology, applied in the optical field, can solve the problems of poor fog penetration ability, low resolution, and difficulty in maintaining high-resolution imaging in the near-infrared band of the camera lens, so as to improve the effect of long-distance observation, Overcoming the low resolution and improving the effect of long-distance observation ability

Active Publication Date: 2019-07-26
FUJIAN FORECAM OPTICS CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the dispersion of glass materials, the positions of the best image planes for different wavelengths of light are different, making it difficult for the camera lens to maintain high-resolution imaging in the near-infrared band
With the user's higher and higher requirements for imaging quality, the current camera zoom lens with low resolution and poor fog penetration ability can no longer meet the needs of users

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-resolution and strong fog-penetrating TV camera zoom lens
  • High-resolution and strong fog-penetrating TV camera zoom lens
  • High-resolution and strong fog-penetrating TV camera zoom lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0052] Such as Figure 4 As shown, the lens assembly mechanism from left to right is the front mounting assembly 401, zoom cam assembly 402, zoom assembly 403, compensation assembly 404, electric dimming mechanism 405, rear mounting assembly 406, filter mechanism 407 and camera assembly 408. The front part of the lens is provided with an electric focus mechanism 409, and the middle part of the lens is provided with an electric zoom mechanism 4010. The electric dimming mechanism 405, electric focus mechanism 409 and electric zoom mechanism 4010 are respectively arranged around the lens. The motorized focus mechanism is provided with a focus potentiometer 3015 for realizing the function of preset focal length and two Hall elements 5019 for realizing the function of outputting in-position signals, and the focus potentiometer 5015 is a precision potentiometer. The motorized zoom mechanism is provided with a zoom potentiometer 6014 realizing the function of preset focal length and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a high-resolution and strong-fog-penetrating television camera zoom lens. A positive-optical-power front fixed lens group A, a negative-optical-power zoom-variable lens group B, a positive-optical-power compensating lens group C, a variable diaphragm D, a positive-optical-power rear fixed lens group E and a color filter F are arranged along the direction of light rays. The front fixed lens group A sequentially comprises a first balsaming group formed through the hermetic bonding of a negative meniscus lens A-1 and a biconvex lens A-2, a plano-convex lens A3, and positive meniscus lens A-4. The plano-convex lens A3 is prepared by ultra-low dispersion materials H-FK61. The zoom-variable lens group B sequentially comprises a plano-concave lens B-1, a second balsaming group formed through the hermetic bonding of a biconcave lens B-2 and a positive meniscus lens B-3, and a biconcave lens B-4. The compensating lens group C comprises a biconvex lens C-1, and a third balsaming group formed through the hermetic bonding of a negative meniscus lens C-2 and a biconvex lens C-3. The rear fixed lens group E sequentially comprises a biconcave lens E-1, a positive meniscus lens E-2, a biconvex lens E-3, a negative meniscus lens E-4, and a biconvex lens E-5. The problem in the prior art that a current wide-spectral zoom lens is not high in resolution in the prior art can be solved. The above high-resolution and strong-fog-penetrating television camera zoom lens is excellent strong in fog-penetrating ability.

Description

technical field [0001] The invention relates to the field of optics, in particular to a high-resolution and strong fog-permeable TV camera zoom lens. Background technique [0002] In visible light environments such as fog, dust, and smog, the effective observation distance of ordinary camera lenses will be greatly shortened, and only blurred images can be obtained when using them for imaging, especially when the target contrast is low, it is impossible to "view". The fog-penetrating camera lens produced by using the principle that infrared light can diffract tiny particles can effectively solve the imaging problem under such harsh conditions and greatly improve the long-distance observation effect. However, due to the dispersion of glass materials, the positions of the best image planes of light in different wavelength bands are different, making it difficult for the camera lens to maintain high-resolution imaging in the near-infrared band. As users have higher and higher r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G02B15/173
CPCG02B15/173
Inventor 肖维军张清苏王芬郑德键黄剑锋廖齐伟
Owner FUJIAN FORECAM OPTICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products