CN202171676U - Zoom pick-up lens adaptive to 3CCD camera - Google Patents

Zoom pick-up lens adaptive to 3CCD camera Download PDF

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Publication number
CN202171676U
CN202171676U CN2011202614654U CN201120261465U CN202171676U CN 202171676 U CN202171676 U CN 202171676U CN 2011202614654 U CN2011202614654 U CN 2011202614654U CN 201120261465 U CN201120261465 U CN 201120261465U CN 202171676 U CN202171676 U CN 202171676U
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CN
China
Prior art keywords
lens
zoom
tube
hurdle
mirror
Prior art date
Application number
CN2011202614654U
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Chinese (zh)
Inventor
周宝藏
刘辉
蔡清辉
李昌洪
黄友镜
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福建福光数码科技有限公司
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Priority to CN2011202614654U priority Critical patent/CN202171676U/en
Application granted granted Critical
Publication of CN202171676U publication Critical patent/CN202171676U/en

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Abstract

The utility model relates to a zoom pick-up lens adaptive to a 3CCD (3 Charge Coupled Devices) camera, comprising a main lens barrel. The zoom pick-up lens is characterized in that: a front fixed lens group A with a positive focal power, a zoom lens group B with a negative focal power, a compensating lens group C with a negative focal power, and a back fixed lens group D with a positive focal power are respectively arranged in the main lens barrel along an incident direction of a light from left to right. The zoom pick-up lens of the utility model can provide photoelectric signals to a 1/2 '' 3CCD color camera to generate clear color video images, so as to perform real time monitoring to far and near objects; in addition, the zoom pick-up lens has the advantages of high resolution, low chromatic aberration, long back focal distance, and short structure length, and the zoom pick-up lens also has a focal length value presetting function.

Description

Adapt to the Varifocal pick-up lens of 3CCD video camera
Technical field
The utility model relates to a kind of Varifocal pick-up lens of the 3CCD of adapting to video camera, is applied to the 3CCD video camera, belongs to field of photoelectric technology.
Background technology
As shown in Figure 8, mechanical compensation formula Varifocal pick-up lens was used 20~30 years in the video camera technical field.Its structural shape generally is made up of preceding fixation group, change times mirror group, compensation group and four constituent elements of back fixation group.Defectives such as but their ubiquity structure lengths are long, the optics rear cut-off distance is short, chromatic aberation is big, resolution is low, poor for applicability.
Summary of the invention
The purpose of the utility model is to provide a kind of Varifocal pick-up lens of the 3CCD of adapting to video camera, helps satisfying the requirement of 3CCD video camera to camera lens high resolving power, low chromatic aberation, long rear cut-off distance, structure length weak point etc.
The utility model is characterised in that: a kind of Varifocal pick-up lens that adapts to the 3CCD video camera; Comprise body tube, it is characterized in that: in the said body tube along light from left to right incident direction focal power is set respectively is that positive preceding fixed mirror group A, focal power is positive back fixed mirror group D for negative change times mirror group B, focal power for compensating glass group C and the focal power of bearing; The front portion of said body tube is provided with electronic focus adjusting mechanism, and the rear portion of said body tube is provided with electronic smooth hurdle governor motion, also is provided with power zoom mechanism on the body tube between said electronic focus adjusting mechanism and the electronic smooth hurdle governor motion; Said electronic focus adjusting mechanism comprise through focusing motor frame connect firmly on the body tube periphery the focusing motor with place the focusing microscope base on week in the body tube; The output shaft of said focusing motor is provided with the focusing driving gear; Said focusing driving gear engagement drives the focusing ring that periphery has driven tooth; Said focusing ring is connected through threaded engagement between the microscope base with focusing; Week goes up through screw thread and is fixed with the preceding arrangement of mirrors tube in order to fixed mirror group A before installing in the said focusing microscope base, and the front portion of said body tube radially is evenly equipped with three guide grooves, is installed on the guide pin that the end is connected the focusing microscope base in the said guide groove respectively; Said power zoom mechanism comprises zoom motor of being located on the body tube periphery and the guide rod that crosses in the body tube; The output shaft of said zoom motor is provided with the zoom driving gear; Said zoom driving gear engagement drives the zoom cam that periphery has driven tooth and is connected with body tube through the steel ball of being located on the body tube periphery; Have two guide grooves on the said cam; Be installed on respectively in the said guide groove and run through body tube and end and be connected in order to install the zoom that becomes times mirror group B and move seat and go up and move the guide pin on the seat in order to the compensation of installing compensating glass group C, said zoom moves seat and moves seat with compensation and be slidingly connected with compensation sliding sleeve and guide rod realization through the change times sliding sleeve that sets firmly on it; Said electronic smooth hurdle governor motion comprises through screw and connecting firmly on the body tube rearward end and interior week regulate motor in order to the light hurdle seat of installing back fixed mirror group D with through the light hurdle that light hurdle motor frame connects firmly on light hurdle seat peripheral part; The output shaft that motor is regulated on said smooth hurdle is provided with the light hurdle and regulates driving gear; Said smooth hurdle is regulated driving gear engagement driving and is positioned at the light hurdle regulating ring on the seat outer end, light hurdle; Said smooth hurdle regulating ring through the guide pin that places its inboard wall groove with place light hurdle seat groove in and is connected with light hurdle rotating ring that the guide pin end is fixedly connected, said smooth hurdle rotating ring is provided with at compensating glass group C and the back light hurdle sheet between the fixed mirror group D.
The advantage of the utility model:
1, the focal length of four mirror constituent elements of reasonable distribution when light path design, and reduce the thickness of each constituent element eyeglass, make the structure length of camera lens short.
2, adopt the FK61 fluor crown material of ED at said positive selenodont lens A-3; The chromatic aberation of correcting optical system effectively; Make pick-up lens have low chromatic aberation, reached high resolving power, with the 3CCD colour TV camera adaptive after; The color reductibility of camera system is good, can obtain bright-coloured video image true to nature.
3, to described back fixed mirror group designing and calculating the time,, the rear cut-off distance of system is increased moving behind its back interarea.The rear cut-off distance of the utility model reaches 115.3mm, makes the camera lens can be adaptive with various types of 3CCD video cameras, can also optics original papers such as color filter, seal glass be set according to the request for utilization of different occasions in light path; Perhaps adopt image rotation prism or reflective mirror so that light path is transferred, the 3CCD video camera is placed on the camera lens top, thereby reduce the length of system.
4, in each mechanism kinematic process of the utility model, flexible movements are reliable, each focal length section not out of focus that forms images, and zoom overall process optical axis coaxiality is good, clear picture, image planes are not beated; The utility model through install two catoptrons additional in the camera lens rear end, makes light pass through 180 ° of two catoptron turnovers when Design of Mechanical Structure, 3CCD is installed in the top of the rear end of camera lens, thereby reaches the purpose of the structure length overall that reduces system; The utility model is when mechanism design, and the function for realizing that focal length presets adds potentiometer on Zoom structure during design, makes zoom motor and potentiometer form a sensor construction, thereby realizes the accurate positioning function of focal length.
Description of drawings
Fig. 1 is the utility model embodiment one-piece construction synoptic diagram.
Fig. 2 is the left TV structure synoptic diagram of Fig. 1.
Fig. 3 is the utility model embodiment light channel structure synoptic diagram.
Fig. 4 is the electronic focus adjusting mechanism structural representation of the utility model embodiment.
Fig. 5 is the power zoom mechanism structure synoptic diagram of the utility model embodiment.
Fig. 6 is the electronic smooth hurdle governor motion structural representation of the utility model embodiment.
Fig. 7 is the mirror structure synoptic diagram of the utility model embodiment.
The light channel structure synoptic diagram of the current the type camera lens of Fig. 8.
Embodiment
Referring to figs. 1 to Fig. 7; A kind of Varifocal pick-up lens that adapts to the 3CCD video camera; Comprise body tube 1, in the said body tube 1 along light from left to right incident direction focal power is set respectively is that positive preceding fixed mirror group A, focal power is positive back fixed mirror group D for negative change times mirror group B, focal power for compensating glass group C and the focal power of bearing; The front portion of said body tube 1 is provided with electronic focus adjusting mechanism 2, and the rear portion of said body tube 1 is provided with electronic smooth hurdle governor motion 3, also is provided with power zoom mechanism 3 on the body tube 1 between said electronic focus adjusting mechanism 2 and the electronic smooth hurdle governor motion 4; Said electronic focus adjusting mechanism 2 comprise through focusing motor frame 2-1 connect firmly on body tube 1 peripheral part focusing motor 2-2 with place the focusing microscope base 2-3 on week in the body tube 1; The output shaft of said focusing motor 2-2 is provided with focusing driving gear 2-4; Said focusing driving gear 2-4 engagement drives the focusing ring 2-5 that periphery has driven tooth; Be connected through threaded engagement between said focusing ring 2-5 and the focusing microscope base 2-3; Week goes up through screw thread and is fixed with the preceding arrangement of mirrors tube 2-6 in order to fixed mirror group A before installing in the said focusing microscope base 2-3; The front portion of said body tube 1 radially is evenly equipped with three guide grooves, is installed on the end in the said guide groove respectively and is connected the guide pin 2-7 in the focusing microscope base 2-3 guide groove; Said power zoom mechanism 3 comprises zoom motor 3-1 that is located on body tube 1 periphery and the guide rod 3-2 that crosses in the body tube 1; The output shaft of said zoom motor 3-1 is provided with zoom driving gear 3-8; Said zoom driving gear 3-8 engagement drives the zoom cam 3-4 that periphery has driven tooth and is connected with body tube 1 through the steel ball 3-3 that is located on body tube 1 periphery; Have two guide grooves on the said cam 3-4; Be installed on respectively in the said guide groove and run through body tube 1 and end and be connected in order to install the zoom that becomes times mirror group B and move a 3-5 and go up and move two guide pin 3-6 on the seat 7 in order to the compensation of installing compensating glass group C, said zoom moves a 3-5 and moves seat 7 with compensation and realize being slidingly connected with guide rod 3-2 with compensation sliding sleeve 8 through the change times sliding sleeve 3-7 that sets firmly on it; Said electronic smooth hurdle governor motion 4 comprise through screw connect firmly on body tube 1 rearward end and interior week in order to install back fixed mirror group D light hurdle seat 4-1 and regulate motor 4-3 through the light hurdle that light hurdle motor frame 4-2 connects firmly on light hurdle seat 4-1 peripheral part; The output shaft that motor 4-3 is regulated on said smooth hurdle is provided with the light hurdle and regulates driving gear 4-4; Said smooth hurdle is regulated driving gear 4-4 engagement driving and is positioned at the light hurdle regulating ring 4-5 on the seat 4-1 outer end, light hurdle; Said smooth hurdle regulating ring 4-5 through the guide pin 4-6 that places its inboard wall groove with place light hurdle seat 4-1 groove in and is connected with light hurdle rotating ring 4-7 that guide pin 4-6 end is fixedly connected, said smooth hurdle rotating ring 4-7 is provided with at compensating glass group C and the back light hurdle sheet 4-10 between the fixed mirror group D.
Above-mentioned zoom driving gear 3-8 also warp and its engagement potentiometer gear 5 be connected with potentiometer 6 that zoom motor 3-1 links together.
The outer end of above-mentioned smooth hurdle regulating ring 4-5 is provided with the light hurdle regulating ring trim ring 4-8 that is connected with light hurdle seat periphery wall through screw thread.
The internal perisporium of above-mentioned smooth hurdle seat 4-1 groove is provided with in order to the light hurdle rotating ring trim ring 4-9 of roof pressure on light hurdle rotating ring 4-7 periphery wall.
Above-mentioned smooth hurdle seat 4-1 also is connected with outward in order to realize from the fixed mirror group D of back, penetrating a pair of mirror unit 9 of light 180 degree counter-rotatings; The outlet of said mirror unit 9 links to each other with 3CCD video camera 10, is respectively equipped with on the said a pair of mirror unit 9 in order to realize the catoptron 1 and catoptron 2 12 of light 90 degree turnovers.
Gummed group, positive selenodont lens A-3 that above-mentioned preceding fixed mirror group A is connected airtight by negative selenodont lens A-1 and biconcave lens A-2 constitute; Described change times mirror group B is made up of the gummed group that biconcave lens B-1, negative selenodont lens B-2 and biconvex lens B-3 connect airtight; Described compensating glass group C is made up of with the gummed group that positive selenodont lens C-2 connects airtight biconcave lens C-1, and gummed group, positive selenodont lens D-5, negative selenodont lens D-6, biconvex lens D-7 that said back fixed mirror group D is connected airtight by biconvex lens D-1, positive selenodont lens D-2, biconvex lens D-3 and biconcave lens D-4 constitute.
Airspace before above-mentioned between fixed mirror group A and the change times mirror group B is 6.65~80.09mm; Airspace between said change times mirror group B and the compensating glass group C is 38.76~63.55mm, and the airspace between said compensating glass group C and the back fixed mirror group D is 103.27~5.04mm; Among the fixed mirror group A, the airspace between gummed group that negative selenodont lens A-1 and biconcave lens A-2 connect airtight and the positive selenodont lens A-3 is 0.16mm before said; Among the said change times mirror group B, the airspace between the gummed group that biconcave lens B-1 and negative selenodont lens B-2 and biconvex lens B-3 connect airtight is 1.65mm; Among the said back fixed mirror group D, the airspace between biconvex lens D-1 and the positive selenodont lens D-2 is 0.2mm; Airspace between the gummed group that positive selenodont lens D-2 and biconvex lens D-3 and biconcave lens D-4 connect airtight is 0.56mm; Airspace between gummed group that biconvex lens D-3 and biconcave lens D-4 connect airtight and the positive selenodont lens D-5 is 1.35; Airspace between positive selenodont lens D-5 and the negative selenodont lens D-6 is 15.79mm; Airspace between negative selenodont lens D-6 and the biconvex lens D-7 is 1.98mm.
Above-mentioned positive selenodont lens A-3 selects the FK61 model fluor crown of ED for use.
The optical index that the utility model reaches:
Focal distance f '=50~500mm;
Relative aperture D/f '=1/5~1/6.7;
Design resolution, when characteristic frequency 108lp/mm:
0ω MTF≥0.35
0.7ω MTF≥0.3
Focal length presets precision: short Jiao≤3 ﹪, long Jiao≤1 ﹪;
Structure length (from first summit a slice eyeglass summit) to the end ≤230mm, optics rear cut-off distance ;
Become times helical pitch :≤73.5mm.
The practical implementation step: show like Fig. 3, along light from left to right incident direction focal power is set respectively is that positive preceding fixed mirror group A, focal power are positive back fixed mirror group D for negative change times mirror group B, focal power for compensating glass group C and the focal power of bearing.
Utility model person reasonably distributes the focal power of said four constituent elements when light path design, and reduces the thickness of each constituent element eyeglass as far as possible, makes the structure length of zoom lens short.
Utility model person's A-3 lens among the fixed mirror group A before described adopt the FK61 fluor crown material of ED; Proofreaied and correct the chromatic aberation of optical system effectively; Make pick-up lens have low chromatic aberation, reached high resolving power, with the 3CCD colour TV camera adaptive after; The chromatic rendition performance of camera system is good, can obtain color video frequency image bright in colour true to nature.
Utility model person moving behind the back interarea of back group D, increases the rear cut-off distance of system to described back fixed mirror group D designing and calculating the time.The rear cut-off distance of the utility model reaches 115.3mm, makes the camera lens can be adaptive with various types of 3CCD video cameras, can also optics original papers such as color filter, seal glass be set according to the request for utilization of different occasions in light path; Also can adopt image rotation prism or catoptron, light path is transferred.So that be placed on the top of camera lens to the 3CCD video camera, shorten system structure length.
In order to reach required optical parametric requirement, the utility model has been done following design in structure aspects:
The design of electronic focus adjusting mechanism
Electronic focus adjusting mechanism like Fig. 4 camera lens.The focusing motor is fixed on the body tube through focusing motor frame; The electrical power of will focusing rotates the focusing driving gear; The focusing driving gear drives focusing ring and rotates, and focusing ring drives the focusing microscope base and realizes moving axially via 3 the 120 ° guide pins that are uniformly distributed with, and guarantees the precision of focusing process.Preceding arrangement of mirrors tube is fixedly connected through screw thread and focusing microscope base, and the focusing microscope base moves and makes preceding group of whole camera lens to move.Adopt the bull pitch thread to pay between body tube and the focusing ring and connect, adopt left-hand thread (LHT) to connect between focusing ring and the focusing microscope base, have advantages such as focusing is quick, flexible, backlash is little.
The design of power zoom mechanism
The utility model adopts the guide rod type type of belt drive to realize the zoom of camera lens: promptly be fixed on the corresponding mobile seat becoming times mirror group and compensating glass group.The microscope base of two mirror groups is located on the guide rod, slides on guide rod according to the zoom cam curve track after the optimal design.In order to reduce in times process that becomes, the lifting angle during cam rotation is the linear movement track of change times mirror group; Change the nonlinear motion curve into; And on the rotation axis of cam, install high-precision steel ball additional and roll, the running that makes cam steadily, clamping stagnation not, thereby guaranteed that the zoom procedural image is stable.
The power zoom mechanism of camera lens shows like Fig. 5.The zoom driving gear drives the zoom cam rotation, and cam moves on guide rod via guide pin drive zoom microscope base through the rolling of steel ball stably, thereby the zoom process is accomplished in the variation of the system of realization focal length.Simultaneously, the zoom driving gear drives the potentiometer gear and rotates, and the rotation of potentiometer gear changes the resistance of potentiometer, thus, forms man-to-man relation between focal length and the potentiometer resistance.Can realize the preparatory function of focal length through this approach sensor.(be about to potentiometer resistance and focal length mapping table and be input in the control chip (CPU), import the pairing potentiometer resistance of required focal length through Control Software.CPU receives orders and indicates rear drive zoom motor to rotate, and zoom driven by motor zoom driving gear rotates, and the zoom driving gear drives cam rotation, also drives the rotation of potentiometer gear simultaneously, and cam then drives the zoom microscope base through steel ball and guide pin and on guide rod, moves.When CPU detects the resistance of potentiometer resistance and input when consistent, CPU provides signal stops operating the zoom motor, and this moment, the position of two arrangement of mirrors seats was exactly required focal length value, thereby realized the focal length preparatory function.)
The design of electronic smooth hurdle mechanism
Electronic smooth hurdle mechanism like Fig. 6 head.The light hurdle is regulated motor and is fixed on the light hurdle seat through light hurdle motor frame; Electrical power is regulated on the light hurdle rotates light hurdle driving gear; Light hurdle driving gear drives light hurdle regulating ring and rotates, and light hurdle regulating ring drives the rotating ring rotation of light hurdle through the guide pin that is fixed on the light hurdle rotating ring, and light hurdle rotating ring drives light hurdle sheet and rotates; Thereby the variation of the openings of sizes on control light hurdle realizes the process that electronic control light hurdle is big or small.Through the position of adjustment light hurdle regulating ring trim ring and light hurdle rotating ring trim ring, can control the degree of tightness of light hurdle regulating ring and light hurdle rotating ring rotation process, make rotation process steady, nothing is beated.
The design of mirror structure
The utility model makes light pass through 180 ° of two catoptron turnovers through install two catoptrons additional in the camera lens rear end, 3CCD is installed in the top of the rear end of camera lens, thereby reaches the purpose that reduces the camera system structure length.
Showing like Fig. 7, is the mirror structure of camera lens.The refraction of the light process front end optical mirror slip of entering camera lens is via the outgoing of last a slice eyeglass; Light after the outgoing carries out primary event through catoptron one; Make light ray bending get into mirror unit for 90 °; The light that gets into mirror unit carries out the reflection second time through catoptron two again, realizes 180 ° of turnovers of light, arrives the image planes of colored 3CCD video camera 4 at last.
The above is merely the preferred embodiment of the utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model.

Claims (8)

1. Varifocal pick-up lens that adapts to the 3CCD video camera; Comprise body tube, it is characterized in that: in the said body tube along light from left to right incident direction focal power is set respectively is that positive preceding fixed mirror group A, focal power is positive back fixed mirror group D for negative change times mirror group B, focal power for compensating glass group C and the focal power of bearing; The front portion of said body tube is provided with electronic focus adjusting mechanism, and the rear portion of said body tube is provided with electronic smooth hurdle governor motion, also is provided with power zoom mechanism on the body tube between said electronic focus adjusting mechanism and the electronic smooth hurdle governor motion; Said electronic focus adjusting mechanism comprise through focusing motor frame connect firmly on the body tube periphery the focusing motor with place the focusing microscope base on week in the body tube; The output shaft of said focusing motor is provided with the focusing driving gear; Said focusing driving gear engagement drives the focusing ring that periphery has driven tooth; Said focusing ring is connected through threaded engagement between the microscope base with focusing; Week goes up through screw thread and is fixed with the preceding arrangement of mirrors tube in order to fixed mirror group A before installing in the said focusing microscope base, and the front portion of said body tube radially is evenly equipped with three guide grooves, is installed on the guide pin that the end is connected the focusing microscope base in the said guide groove respectively; Said power zoom mechanism comprises zoom motor of being located on the body tube periphery and the guide rod that crosses in the body tube; The output shaft of said zoom motor is provided with the zoom driving gear; Said zoom driving gear engagement drives the zoom cam that periphery has driven tooth and is connected with body tube through the steel ball of being located on the body tube periphery; Have two guide grooves on the said cam; Be installed on respectively in the said guide groove and run through body tube and end and be connected in order to install the zoom that becomes times mirror group B and move seat and go up and move the guide pin on the seat in order to the compensation of installing compensating glass group C, said zoom moves seat and moves seat with compensation and be slidingly connected with compensation sliding sleeve and guide rod realization through the change times sliding sleeve that sets firmly on it; Said electronic smooth hurdle governor motion comprises through screw and connecting firmly on the body tube rearward end and interior week regulate motor in order to the light hurdle seat of installing back fixed mirror group D with through the light hurdle that light hurdle motor frame connects firmly on light hurdle seat peripheral part; The output shaft that motor is regulated on said smooth hurdle is provided with the light hurdle and regulates driving gear; Said smooth hurdle is regulated driving gear engagement driving and is positioned at the light hurdle regulating ring on the seat outer end, light hurdle; Said smooth hurdle regulating ring through the guide pin that places its inboard wall groove with place light hurdle seat groove in and is connected with light hurdle rotating ring that the guide pin end is fixedly connected, said smooth hurdle rotating ring is provided with at compensating glass group C and the back light hurdle sheet between the fixed mirror group D.
2. the Varifocal pick-up lens that adapts to the 3CCD video camera according to claim 1 is characterized in that: said zoom driving gear also warp and its engagement the potentiometer gear be connected with potentiometer that the zoom motor links together.
3. the Varifocal pick-up lens that adapts to the 3CCD video camera according to claim 1 is characterized in that: the outer end of said smooth hurdle regulating ring is provided with the light hurdle regulating ring trim ring that is connected with light hurdle seat periphery wall through screw thread.
4. the Varifocal pick-up lens that adapts to the 3CCD video camera according to claim 1 is characterized in that: the internal perisporium of said smooth hurdle seat groove is provided with in order to the light hurdle rotating ring trim ring of roof pressure on light hurdle rotating ring periphery wall.
5. the Varifocal pick-up lens that adapts to the 3CCD video camera according to claim 1; It is characterized in that: said smooth hurdle seat also is connected with outward in order to realize from the fixed mirror group D of back, penetrating a pair of mirror unit of light 180 degree counter-rotatings; The outlet of said mirror unit links to each other with the 3CCD video camera, is respectively equipped with on the said a pair of mirror unit in order to realize the catoptron one and catoptron two of light 90 degree turnovers.
6. the Varifocal pick-up lens that adapts to the 3CCD video camera according to claim 1; It is characterized in that: fixed mirror group A is connected airtight by negative selenodont lens A-1 and biconcave lens A-2 before described gummed group, positive selenodont lens A-3 constitute; Described change times mirror group B is made up of the gummed group that biconcave lens B-1, negative selenodont lens B-2 and biconvex lens B-3 connect airtight; Described compensating glass group C is made up of with the gummed group that positive selenodont lens C-2 connects airtight biconcave lens C-1, and gummed group, positive selenodont lens D-5, negative selenodont lens D-6, biconvex lens D-7 that said back fixed mirror group D is connected airtight by biconvex lens D-1, positive selenodont lens D-2, biconvex lens D-3 and biconcave lens D-4 constitute.
7. according to claim 1 or the 6 described Varifocal pick-up lens that adapt to the 3CCD video camera; It is characterized in that: the airspace before said between fixed mirror group A and the change times mirror group B is 6.65~80.09mm; Airspace between said change times mirror group B and the compensating glass group C is 38.76~63.55mm, and the airspace between said compensating glass group C and the back fixed mirror group D is 103.27~5.04mm; Among the fixed mirror group A, the airspace between gummed group that negative selenodont lens A-1 and biconcave lens A-2 connect airtight and the positive selenodont lens A-3 is 0.16mm before said; Among the said change times mirror group B, the airspace between the gummed group that biconcave lens B-1 and negative selenodont lens B-2 and biconvex lens B-3 connect airtight is 1.65mm; Among the said back fixed mirror group D, the airspace between biconvex lens D-1 and the positive selenodont lens D-2 is 0.2mm; Airspace between the gummed group that positive selenodont lens D-2 and biconvex lens D-3 and biconcave lens D-4 connect airtight is 0.56mm; Airspace between gummed group that biconvex lens D-3 and biconcave lens D-4 connect airtight and the positive selenodont lens D-5 is 1.35; Airspace between positive selenodont lens D-5 and the negative selenodont lens D-6 is 15.79mm; Airspace between negative selenodont lens D-6 and the biconvex lens D-7 is 1.98mm.
8. the Varifocal pick-up lens that adapts to the 3CCD video camera according to claim 6 is characterized in that: said positive selenodont lens A-3 selects the FK61 model fluor crown of ED for use.
CN2011202614654U 2011-07-22 2011-07-22 Zoom pick-up lens adaptive to 3CCD camera CN202171676U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102253472A (en) * 2011-07-22 2011-11-23 福建福光数码科技有限公司 Zooming camera lens matched with 3CCD (Charge-Coupled Device) camera
CN103192412A (en) * 2013-03-28 2013-07-10 浙江大学 Bionic eye device with zooming characteristics
CN103823295A (en) * 2014-03-07 2014-05-28 福建福光数码科技有限公司 Electric-zooming day and night dual-purpose pick-up lens
CN103926682A (en) * 2014-04-08 2014-07-16 福建福光数码科技有限公司 High-precision electric-zooming-focusing three-million-pixel camera lens allowed to be used in day and night
CN108008518A (en) * 2017-12-13 2018-05-08 湖北华中光电科技有限公司 A kind of high-precision continuous magnification lens based on hyperbolic wire casing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102253472A (en) * 2011-07-22 2011-11-23 福建福光数码科技有限公司 Zooming camera lens matched with 3CCD (Charge-Coupled Device) camera
CN102253472B (en) * 2011-07-22 2013-11-20 福建福光数码科技有限公司 Zooming camera lens matched with 3CCD (Charge-Coupled Device) camera
CN103192412A (en) * 2013-03-28 2013-07-10 浙江大学 Bionic eye device with zooming characteristics
CN103192412B (en) * 2013-03-28 2015-02-04 浙江大学 Bionic eye device with zooming characteristics
CN103823295A (en) * 2014-03-07 2014-05-28 福建福光数码科技有限公司 Electric-zooming day and night dual-purpose pick-up lens
CN103926682A (en) * 2014-04-08 2014-07-16 福建福光数码科技有限公司 High-precision electric-zooming-focusing three-million-pixel camera lens allowed to be used in day and night
CN108008518A (en) * 2017-12-13 2018-05-08 湖北华中光电科技有限公司 A kind of high-precision continuous magnification lens based on hyperbolic wire casing

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