CN205450415U - Dual -purpose camera lens that zooms of low distortion day night of high resolution - Google Patents

Dual -purpose camera lens that zooms of low distortion day night of high resolution Download PDF

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Publication number
CN205450415U
CN205450415U CN201521088799.0U CN201521088799U CN205450415U CN 205450415 U CN205450415 U CN 205450415U CN 201521088799 U CN201521088799 U CN 201521088799U CN 205450415 U CN205450415 U CN 205450415U
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CN
China
Prior art keywords
lens
cam
arrangement
mirrors
glued
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201521088799.0U
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Chinese (zh)
Inventor
潘俊达
何武强
蒋日明
苏青年
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Fujian Forecam Optics Co Ltd
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Fujian Forecam Optics Co Ltd
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Publication date
Application filed by Fujian Forecam Optics Co Ltd filed Critical Fujian Forecam Optics Co Ltd
Priority to CN201521088799.0U priority Critical patent/CN205450415U/en
Application granted granted Critical
Publication of CN205450415U publication Critical patent/CN205450415U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a dual -purpose camera lens that zooms of low distortion day night of high resolution, the mechanical structure of camera lens organize B's back arrangement of mirrors seat including the A's of group before being used for the installation preceding arrangement of mirrors seat, after being used for the installation, preceding arrangement of mirrors seat movable mounting is in a preceding arrangement of mirrors section of thick bamboo, and the preceding cam of arrangement of mirrors seat back -and -forth movement before preceding arrangement of mirrors section of thick bamboo outside cover is equipped with and drives, back arrangement of mirrors seat movable mounting be after in the arrangement of mirrors section of thick bamboo, back arrangement of mirrors section of thick bamboo outside cover is equipped with the back cam that drives back arrangement of mirrors seat back -and -forth movement, is provided with two light filter switchs between a preceding arrangement of mirrors section of thick bamboo and the back arrangement of mirrors section of thick bamboo, be provided with on the preceding cam drive before cam pivoted locking nail, be provided with on the back cam to drive to lock behind the cam pivoted of back and follow closely, the optical system of camera lens along the light incidence orientation be equipped with in proper order the focal power for the preceding A of group of burden and focal power for the positive back B of group, organize A in the front and organize after and set up glazed fence C between the B, the utility model discloses the optical index is high, and the optics target surface is big, and resolution ratio is high, can realize the clear formation of image of 0.3m dolly -in distance.

Description

High-resolution low distortion day and night zooming camera lens
Technical field
This utility model relates to a kind of high-resolution low distortion day and night zooming camera lens.
Background technology
The fast development that learns a skill, the gradually stepping up of people's safety consciousness, promote the continuous progressive of security protection market.The most ripe along with advanced technology of video compressing encoding now, developing rapidly and the application of Digital Zoom technology of IP-based network transmission, market has been proposed the high-definition camera of a series of 3,000,000, five mega pixels.But during network transmission and Digital Zoom, the definition (i.e. resolution) of video has a certain degree of decline, but meanwhile people are more and more higher to the requirement of image analytic degree, and the most just the resolution to camera lens foremost has higher requirement.
Tight shot simple in construction in early days, performance indications are low, can only be adaptive with the SD CCD of 20~300,000 pixels or cmos camera on the definition of image, and shooting effect is general, and picture is worth little, can only adapt to the needs that monitoring field " is seen ".Such resolution can not meet the most far away the requirement of present high-definition camera.
The target pursued with CCTV camera is consistent, the critical component gathered as monitoring image, manufacturer is promoting the new technique also developed while camera lens quality, the birth of face eyeglass, the popularization of infrared lens, the rise etc. of mega pixel correspondence camera lens is asked as non-, its target only one of which: improving image definition, improves image quality.Better image quality, higher definition, it is not only the key word of the most each camera lens producer requirement technology, especially eternal the pursuing a goal of camera lens product.
Utility model content
This utility model is intended to adapt to above-mentioned development trend, there is provided a kind of optical index high for video camera system, optics target surface is big, resolution higher than the high definition camera lens of five mega pixels, can be with 16:9 standard 1/3 " the matching used high-resolution of the video camera low distortion day and night zooming camera lens of fine definition.
The technical solution of the utility model is, a kind of high-resolution low distortion day and night zooming camera lens, the frame for movement of described camera lens includes the front group of microscope base for installing front group of A, the rear group of microscope base of B is organized after installing, before described, group microscope base is movably installed in front group of lens barrel, the front cam that before group lens barrel outer sheath is provided with and drives before described, group microscope base is movable, after described, group microscope base is movably installed in rear group of lens barrel, after described, group lens barrel outer sheath organizes, after being provided with drive, the rear cam that microscope base is movable, it is provided with double optical-filter switcher between group lens barrel and rear group lens barrel before described, the front locking nail driving front cam to rotate it is provided with in described front cam, the rear locking nail of cam rotation after drive it is provided with on described rear cam.
Further, it is front group of negative A and focal power is rear group of positive B that the optical system of described camera lens is sequentially provided with focal power along light direction, it is provided with light hurdle C between front group of A and rear group B, before described, group A is sequentially provided with negative selenodont lens A-1, biconcave lens A-2 and negative selenodont lens A-3, and described rear group B is sequentially provided with the by lenticular lens B-1 and negative selenodont lens B-2 contiguity first glued group, the second glued group by lenticular lens B-3 and double concave type lens B-4 contiguity and the 3rd glued group by lenticular lens B-5 and negative selenodont lens B-6 contiguity.
Further, airspace between described negative selenodont lens A-1 and biconcave lens A-2 is 3.86mm, airspace between biconcave lens A-2 and negative selenodont lens A-3 is 1.25mm, airspace between first glued group and the second glued group is 0.10mm, and the airspace between the second glued group and the 3rd glued group is 0.40mm.
Further, described front locking nail, rear locking nail are provided with annular knurl.
Further, described front locking nail is identified with focus direction, described rear locking nail is identified with zoom direction.
Further, between biconcave lens A-2 and negative selenodont lens A-3, it is provided with spacer ring, between the first glued group and the second glued group, is provided with spacer ring.
Further, described front group microscope base front portion is provided with front trim ring, and rear group microscope base rear portion is provided with rear trim ring, and front group of lens barrel front portion is provided with front ring washer, and rear cam rear portion is provided with snap ring.
Compared with prior art, this utility model has the advantages that optical index is high, optics target surface is big, resolution is higher than the high definition camera lens of five mega pixels, can be with 16:9 standard 1/3 " video camera of fine definition supports the use; make camera system be capable of scenery in the requirement of the high definition pick-up of high photokinesis excursion environment, and almost without distortion, can realize simultaneously 0.3m close-shot away from blur-free imaging.
With detailed description of the invention this utility model made further details of elaboration below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is optical system diagram of the present utility model.
Fig. 2 is mechanical construction drawing of the present utility model.
In figure: A-1-bears selenodont lens A-1;A-2-biconcave lens A-2;A-3-bears selenodont lens A-3;B-1-lenticular lens B-1;B-2-bears selenodont lens B-2;B-3-lenticular lens B-3;B-4-double concave type lens B-4;B-5-lenticular lens B-5;B-6-bears selenodont lens B-6;C-light hurdle C;Microscope base is organized before 1-;Lens barrel is organized before 2-;3-front cam;The double optical-filter switcher of 4-;Cam after 5-;Microscope base is organized after 6-;Lens barrel is organized after 7-;Locking nail before 8-;Locking nail after 9-;Trim ring before 10-;Trim ring after 11-;Ring washer before 12-;13-snap ring;14-spacer ring.
Detailed description of the invention
As shown in Figure 1 and 2, a kind of high-resolution low distortion day and night zooming camera lens, the frame for movement of described camera lens includes the front group of microscope base for installing front group of A, the rear group of microscope base of B is organized after installing, before described, group microscope base is movably installed in front group of lens barrel, the front cam that before group lens barrel outer sheath is provided with and drives before described, group microscope base is movable, after described, group microscope base is movably installed in rear group of lens barrel, after described, group lens barrel outer sheath organizes, after being provided with drive, the rear cam that microscope base is movable, it is provided with double optical-filter switcher between group lens barrel and rear group lens barrel before described, the front locking nail driving front cam to rotate it is provided with in described front cam, the rear locking nail of cam rotation after drive it is provided with on described rear cam.
In the present embodiment, it is front group of negative A and focal power is rear group of positive B that the optical system of described camera lens is sequentially provided with focal power along light direction, it is provided with light hurdle C between front group of A and rear group B, before described, group A is sequentially provided with negative selenodont lens A-1, biconcave lens A-2 and negative selenodont lens A-3, after described, group B is sequentially provided with the by lenticular lens B-1 and negative selenodont lens B-2 contiguity first glued group, the the second glued group touched by lenticular lens B-3 and double concave type lens B-4 and the 3rd glued group touched by lenticular lens B-5 and negative selenodont lens B-6.
In the present embodiment, airspace between described negative selenodont lens A-1 and biconcave lens A-2 is 3.86mm, airspace between biconcave lens A-2 and negative selenodont lens A-3 is 1.25mm, airspace between first glued group and the second glued group is 0.10mm, and the airspace between the second glued group and the 3rd glued group is 0.40mm.
In the present embodiment, described front locking nail, rear locking nail are provided with annular knurl so that it is increase the frictional force between hands and part when manual operation, also improve the aesthetic property of camera lens outward appearance simultaneously.
In the present embodiment, described front locking nail is identified with focus direction (FN), described rear locking nail is identified with zoom direction (TW), it is simple to client identifies.
In the present embodiment, when the double optical-filter switcher light by day of I is abundant, cutoff filter works, video camera photo-sensitive cell restores true color, and when insufficient light at night, IR-cut/absorption filter is removed automatically, full impregnated spectral filter is started working, make video camera photo-sensitive cell make full use of all light, thus substantially increase low according to performance, it is achieved daytime, night can blur-free imaging.
In the present embodiment, during assembling, the cooperation face coordinating face, rear cam and rear group lens barrel of cooperation face, front cam and the front group of lens barrel of the cooperation face of front group of microscope base and front group of lens barrel, rear group microscope base and rear group lens barrel is coated with lubricating oil, to ensure that camera lens has good feel during zoom, focusing.
In the present embodiment, for ensureing the airspace between each eyeglass, it is provided with spacer ring between biconcave lens A-2 and negative selenodont lens A-3, it is provided with spacer ring between first glued group and the second glued group, for reducing the second glued group difficulty in the course of processing, gluing process is used to fix rear group of eyeglass.
In the present embodiment, for fixing len, described front group microscope base front portion is provided with front trim ring, and rear group microscope base rear portion is provided with rear trim ring, and in order to prevent before and after's cam from dropping out, front group of lens barrel front portion is provided with front ring washer, and rear cam rear portion is provided with snap ring.
In the present embodiment, this camera lens using method is as follows:
(1) zoom: locking nail after rotation, after drive, cam rotates, and is adjusted the relative position of rear microscope base by the cam path in rear cam, thus realizes anamorphosis function;
(2) focus on: locking nail before rotating, drive front cam to rotate, by the cam path in front cam, the relative position of front microscope base is adjusted, thus realizes focusing function;
(3) locking: after zoom and focus adjustment make image clear, by rear locking nail by rear camlock, is locked front cam by front locking nail.
In the present embodiment, the technical specification that this camera lens realizes is as follows: focal length: f '=2.8-10mm;Relative aperture=F1.8 (w)/F2.8 (t);Horizontal field of view angle: 45.5 ° (t)-127 ° (w);Resolution: be better than 3,000,000 pixels;Light path overall length ∑≤51.6mm;It is suitable for spectral line scope: 400nm~700nm.
The economy of this kind of lens construction is very strong, is suitable for producing in enormous quantities, the highly versatile on producing, and production efficiency is high.Use blasting craft at camera lens outer surface, on locks is marked closely, be designed with annular knurl, make camera lens the most attractive in appearance.
The foregoing is only preferred embodiment of the present utility model, all impartial changes done according to this utility model claim and modification, all should belong to covering scope of the present utility model.

Claims (6)

  1. null1. a high-resolution low distortion day and night zooming camera lens,It is characterized in that: the frame for movement of described camera lens includes the front group of microscope base for installing front group of A、The rear group of microscope base of B is organized after installing,Before described, group microscope base is movably installed in front group of lens barrel,The front cam that before group lens barrel outer sheath is provided with and drives before described, group microscope base is movable,After described, group microscope base is movably installed in rear group of lens barrel,After described, group lens barrel outer sheath organizes, after being provided with drive, the rear cam that microscope base is movable,It is provided with double optical-filter switcher between group lens barrel and rear group lens barrel before described,The front locking nail driving front cam to rotate it is provided with in described front cam,The rear locking nail of cam rotation after drive it is provided with on described rear cam,Before described, group microscope base front portion is provided with front trim ring,Rear group of microscope base rear portion is provided with rear trim ring,Front group of lens barrel front portion is provided with front ring washer,Rear cam rear portion is provided with snap ring.
  2. High-resolution the most according to claim 1 low distortion day and night zooming camera lens, it is characterized in that: it is front group of negative A and focal power is rear group of positive B that the optical system of described camera lens is sequentially provided with focal power along light direction, it is provided with light hurdle C between front group of A and rear group B, before described, group A is sequentially provided with negative selenodont lens A-1, biconcave lens A-2 and negative selenodont lens A-3, after described, group B is sequentially provided with the by lenticular lens B-1 and negative selenodont lens B-2 contiguity first glued group, the the second glued group touched by lenticular lens B-3 and double concave type lens B-4 and the 3rd glued group touched by lenticular lens B-5 and negative selenodont lens B-6.
  3. High-resolution the most according to claim 2 low distortion day and night zooming camera lens, it is characterized in that: the airspace between described negative selenodont lens A-1 and biconcave lens A-2 is 3.86mm, airspace between biconcave lens A-2 and negative selenodont lens A-3 is 1.25mm, airspace between first glued group and the second glued group is 0.10mm, and the airspace between the second glued group and the 3rd glued group is 0.40mm.
  4. High-resolution the most according to claim 1 low distortion day and night zooming camera lens, it is characterised in that: it is provided with annular knurl on described front locking nail, rear locking nail.
  5. High-resolution the most according to claim 4 low distortion day and night zooming camera lens, it is characterised in that: it is identified with focus direction on described front locking nail, described rear locking nail is identified with zoom direction.
  6. High-resolution the most according to claim 2 low distortion day and night zooming camera lens, it is characterised in that: it is provided with spacer ring between biconcave lens A-2 and negative selenodont lens A-3, between the first glued group and the second glued group, is provided with spacer ring.
CN201521088799.0U 2015-12-24 2015-12-24 Dual -purpose camera lens that zooms of low distortion day night of high resolution Withdrawn - After Issue CN205450415U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521088799.0U CN205450415U (en) 2015-12-24 2015-12-24 Dual -purpose camera lens that zooms of low distortion day night of high resolution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521088799.0U CN205450415U (en) 2015-12-24 2015-12-24 Dual -purpose camera lens that zooms of low distortion day night of high resolution

Publications (1)

Publication Number Publication Date
CN205450415U true CN205450415U (en) 2016-08-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105403976A (en) * 2015-12-24 2016-03-16 福建福光股份有限公司 High-resolution low-distortion day and night zooming camera lens and use method thereof
CN106371195A (en) * 2016-11-23 2017-02-01 福建福光股份有限公司 Large-wide-angle, high-light-flux and high-definition prime lens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105403976A (en) * 2015-12-24 2016-03-16 福建福光股份有限公司 High-resolution low-distortion day and night zooming camera lens and use method thereof
CN105403976B (en) * 2015-12-24 2017-10-31 福建福光股份有限公司 The low distortion day and night zooming camera lens of high-resolution and its application method
CN106371195A (en) * 2016-11-23 2017-02-01 福建福光股份有限公司 Large-wide-angle, high-light-flux and high-definition prime lens

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20160810

Effective date of abandoning: 20171031