Visible-light lens with four-shift energy adjustment function and working method thereof
A technology of energy regulation and visible light, which is applied in the field of visible light lenses, can solve the problems that traditional surveillance cameras cannot meet the application needs, and achieve the effects of compact structure, large depth of field, and reduced volume
Pending Publication Date: 2018-12-21
FUJIAN FORECAM OPTICS CO LTD
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Problems solved by technology
[0003] In the security monitoring industry, with the deepening of video surveillance applications, traditional surveillance cameras cannot meet the application needs of some special areas.
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[0027] Such as Figure 1~8 As shown, a compact visible light lens with a four-speed energy adjustment function includes a front mirror group, an iris 56 and a rear mirror group arranged in sequence along the incident direction of the optical path, and the front mirror group includes a negative lens group along the incident direction of the optical path. Crescent lens A51, biconvex lens A52, negative crescent lens B53, color filter 54 and biconvex lens B55, described rear mirror group includes positive crescent lens A57, biconvex lens 58, biconvex lens C59, biconvex lens D60 along the light path incidence direction, so The outer periphery of the color filter 54 is provided with a color filter switching mechanism 20 for switching the color filter 54, and the color filter switching mechanism 20 includes a color filter turntable 23 for fixing the color filter 54, and the color filter Four color filter mounting grooves 24 are arranged on the filter turntable 23, and a color filter ...
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The invention relates to a visible light lens having a four-shift energy adjustment function, which includes a front mirror group, a variable diaphragm and a rear mirror group which are sequentially arranged along an incident direction of an optical path, the front lens group comprises a negative crescent lens A, a biconvex lens A, a negative crescent lens B, a color filter and a biconvex lens B along the optical path incident direction, the rear lens group comprises a positive crescent lens A, a biconcave lens, a biconvex lens C, and a biconvex lens D along the optical path incident direction, and a color filter switching mechanism for switching the color filter is arranged on the periphery of the color filter; The invention also relates to a visible light lens with a four-shift energy adjusting function. The invention is used for mounting four kinds of color filters with different attenuation ratios by appropriately increasing the spacing between the front lens group lenses, Then, the color filter switching mechanism switches the color filter to achieve the adjustment of lens energy, so that the lens can get good imaging pictures in different lighting environments, and at the same time, the volume of the large target surface and the large field of view lens can be effectively reduced.
Description
technical field [0001] The invention relates to a visible light lens with a four-speed energy adjustment function and a working method thereof. technical background [0002] With the popularity of cloud computing and the maturity of artificial intelligence technology, information technology is gradually transforming into the era of the Internet of Things. The Internet of Things technology leads human beings into a new intelligent society such as smart cities, smart homes, and smart manufacturing. Smart cameras are one of the important components of the Internet of Things technology. They are widely used in security, home furnishing, and industrial manufacturing. Even better detection and identification capabilities. Optical lens is one of the core components of smart cameras. [0003] In the security monitoring industry, with the deepening of video surveillance applications, traditional surveillance cameras cannot meet the application needs of some special areas. In view ...
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IPC IPC(8): G03B17/14G02B13/00
CPCG02B13/00G03B17/14
Inventor 屈立辉王芬钟兆铨尹邦雄
Owner FUJIAN FORECAM OPTICS CO LTD