CN109358419A - A kind of wide spectrum high definition low-light zoom lens and its working method - Google Patents
A kind of wide spectrum high definition low-light zoom lens and its working method Download PDFInfo
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- CN109358419A CN109358419A CN201811475882.1A CN201811475882A CN109358419A CN 109358419 A CN109358419 A CN 109358419A CN 201811475882 A CN201811475882 A CN 201811475882A CN 109358419 A CN109358419 A CN 109358419A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/163—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
- G02B15/167—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
- G02B15/173—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +-+
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Abstract
The present invention relates to a kind of wide spectrum high definition low-light zoom lens and its working method, the optical system of the camera lens includes preceding fixed group A, zoom group B, compensation group C and rear fixed group E；Fixed group A includes the first gluing unit of biconvex lens A-1, positive meniscus lens A-2, positive meniscus lens A-3, diverging meniscus lens A-4 and positive meniscus lens A-5 contiguity before described；The zoom group B includes the second gluing unit of diverging meniscus lens B-1 and positive meniscus lens B-2 and diverging meniscus lens B-3 three contiguity, plano-concave lens B-4；The compensation group C includes the third gluing unit of biconvex lens C-1, diverging meniscus lens C-2 and biconvex lens C-3 contiguity, biconvex lens C-4；Fixed group E includes the 5th gluing unit, the biconvex lens E-8, optical filter E-9 of the 4th gluing unit of diverging meniscus lens E-1, positive meniscus lens E-2, diverging meniscus lens E-3 and positive meniscus lens E-4 contiguity, diverging meniscus lens E-5, biconvex lens E-6 and biconcave lens E-7 contiguity after described.The camera lens has the advantages that big light passing amount, wide spectrum, high-resolution.
Description
Technical field
The present invention relates to a kind of wide spectrum high definition low-light zoom lens and its working methods.
Background technique
Low-light class camera lens light passing amount is big, is able to satisfy the poor environment of lighting condition, but its service band be generally limited to it is visible
Optical band, and the overwhelming majority is tight shot, is not able to satisfy the demand of monitoring range variation；Fog penetration lens service band is wide, but
Due to second order spectrum aberration etc., it is difficult to accomplish big light passing amount, and when focal length end works, if visibility is poor, generally
Auxiliary laser is needed to illuminate；High definition zoom lens is able to satisfy the requirement of different monitoring range, but general light passing amount is smaller, can see
Monitor task is unable to complete when spending poor.
But with the development of science and technology, camera lens is required to adapt to the harsh application environment of comparison, such as without lighting environment, haze
Environment etc..It is monitoring device as hidden as possible, it is desirable that without a licence especially in some special occasions, such as prison, security department
It is bright, without ancillary equipment, while target signature high definition can be identified, as much as possible can adapt to various harsh environments.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of big light passing amount, wide spectrum, high-resolution wide spectrum high definition are micro-
Light zoom lens and its working method.
The present invention is realized using following scheme: a kind of wide spectrum high definition low-light zoom lens, the optical system of the camera lens
The zoom group being negative including the preceding fixed group A that is positive along the light focal power that incident direction is set gradually from front to back, focal power
B, the rear fixed group E that focal power is positive compensation group C, iris diaphgram D, focal power are positive；Fixed group A includes lenticular before described
The first gluing of mirror A-1, positive meniscus lens A-2, positive meniscus lens A-3, diverging meniscus lens A-4 and positive meniscus lens A-5 contiguity
Group；The zoom group B includes together with diverging meniscus lens B-1 touches with positive meniscus lens B-2 with diverging meniscus lens B-3 three
Second gluing unit, plano-concave lens B-4；The compensation group C includes biconvex lens C-1, diverging meniscus lens C-2 and biconvex lens C-3
The third gluing unit of contiguity, biconvex lens C-4；Fixed group E includes diverging meniscus lens E-1, positive meniscus lens E-2, bears after described
The 4th gluing unit, diverging meniscus lens E-5, biconvex lens E-6 and the concave-concave that meniscus lens E-3 and positive meniscus lens E-4 touches are saturating
5th gluing unit of mirror E-7 contiguity, biconvex lens E-8, optical filter E-9.
Further, 7.36~65.16mm of airspace between the preceding fixed group A and zoom group B, the zoom group
Airspace between B and compensation group C is 110.877~2.686mm, and the compensation group C and rear fixation are organized between the air between E
It is divided into 7.285~57.674mm, the positive meniscus lens A-2, positive meniscus lens A-3 use the SFPL53 material of ultra-low dispersion.
Further, the airspace between the biconvex lens A-1 and positive meniscus lens A-2 is 0.6mm, described just curved
Airspace between month lens A-2 and positive meniscus lens A-3 is 0.6mm, the positive meniscus lens A-3 and the first gluing unit it
Between airspace be 16.5mm；Airspace between second gluing unit and plano-concave lens B-4 is 6.15mm；It is described double
Airspace between convex lens C-1 and third gluing unit is 0.1mm, between the third gluing unit and biconvex lens C-4
Airspace is 0.1mm；Airspace between the diverging meniscus lens E-1 and positive meniscus lens E-2 is 0.1mm, it is described just
Airspace between meniscus lens E-2 and the 4th gluing unit is 4.40m, the 4th gluing unit and diverging meniscus lens E-5 it
Between airspace be 5.00mm, airspace between the diverging meniscus lens E-5 and the 5th gluing unit is 4.9m, described the
Airspace between five gluing units and biconvex lens E-8 is 11.8mm, the air between the biconvex lens E-8 and optical filter
Between be divided into 3mm.
Further, the radius of curvature R 1 of mirror surface meets relational expression before the biconvex lens A-1: 465mm≤R1≤475
Mm, the radius of curvature R 2 of rear mirror surface meets relational expression: -780 mm≤mm of R2≤- 745, with a thickness of 11.10mm；Positive meniscus lens
The radius of curvature R 3 of mirror surface meets relational expression: the mm of 119.02 mm≤R3≤125.4 before A-2, and the radius of curvature R 4 of rear mirror surface is full
Sufficient relational expression: the mm of 700 mm≤R4≤722, with a thickness of 17.5mm；The radius of curvature R 5 of mirror surface meets before positive meniscus lens A-3
Relational expression: the mm of 192.75 mm≤R5≤197.462, the radius of curvature R 6 of rear mirror surface meet relational expression: 519.40 mm≤R6≤
529.785 mm, with a thickness of 10.20mm；The radius of curvature R 7 of mirror surface meets relational expression: 1000.5 mm≤R7 before first gluing unit
≤ 1025.457 mm, the radius of curvature R 8 of cemented surface meet relational expression: the mm of 70.8 mm≤R8≤71, the curvature half of rear mirror surface
Diameter R9 meets relational expression: the mm of 242.529 mm≤R9≤255.457, diverging meniscus lens A-4 is with a thickness of 4.6mm, positive meniscus lens
A-5 is with a thickness of 14mm；The radius of curvature R 10 of mirror surface meets relational expression: 3444 mm≤R10≤7825.46 before second gluing unit
Mm, the radius of curvature R 11 of first cemented surface meet relational expression: the mm of 40.2 mm≤R11≤45.3, the song of second cemented surface
Rate radius R12 meets relational expression: the mm of 517 mm≤R12≤545, and the radius of curvature R 13 of preceding mirror surface meets relational expression: 60.072
Mm≤R13≤63.47 mm, diverging meniscus lens B-1 are with a thickness of 2.6mm, and for positive meniscus lens B-2 with a thickness of 9.8mm, negative bent moon is saturating
Mirror B-3 is with a thickness of 2.5mm；The radius of curvature R 14 of mirror surface meets relational expression before plano-concave lens B-4: -85.2 mm≤R14≤-
84.3 mm, rear mirror surface is plane, with a thickness of 2.5mm；The radius of curvature R 16 of mirror surface meets relational expression before biconvex lens C-1: 138
The mm of mm≤R16≤142.5, the radius of curvature R 17 of rear mirror surface meet relational expression: -206.5 mm≤mm of R17≤- 200.02, thick
Degree is 5.1mm；The radius of curvature R 18 of mirror surface meets relational expression: the mm of 180 mm≤R18≤192.75 before third gluing unit, glued
The radius of curvature R 19 in face meets relational expression: the radius of curvature R 20 of the mm of 60 mm≤R19≤75.9, rear mirror surface meet relational expression :-
245 mm≤the mm of R20≤- 200.5, diverging meniscus lens C-2 are with a thickness of 2.2mm, and biconvex lens C-3 is with a thickness of 7.0mm；Lenticular
The radius of curvature R 21 of mirror surface meets relational expression: the mm of 114 mm≤R21≤125.7, the radius of curvature R 22 of rear mirror surface before mirror C-4
Meet relational expression: -1985 mm≤mm of R22≤- 1902.2, with a thickness of 4.15mm；The curvature of mirror surface half before diverging meniscus lens E-1
Diameter R23 meets relational expression: -115 mm≤mm of R23≤- 100, and the radius of curvature R 24 of rear mirror surface meets relational expression: -320 mm≤
The mm of R24≤- 280, with a thickness of 2.5mm；The radius of curvature R 25 of mirror surface meets relational expression before positive meniscus lens E-2: 32 mm≤
The mm of R25≤35, the radius of curvature R 26 of rear mirror surface meet relational expression: the mm of 70 mm≤R26≤75.5, with a thickness of 6.5mm, the 4th
The radius of curvature R 27 of mirror surface meets relational expression: the mm of 75 mm≤R27≤80 before gluing unit, and the radius of curvature R 28 of cemented surface meets
Relational expression: the mm of 20 mm≤R28≤22, the radius of curvature R 29 of rear mirror surface meet relational expression: 140 mm≤R29≤165.42
Mm, diverging meniscus lens E-3 with a thickness of 2.8mm, positive meniscus lens E-4 with a thickness of 8mm；Mirror surface before diverging meniscus lens E-5
Radius of curvature R 30 meets relational expression: the radius of curvature R 31 of the mm of 63.5 mm≤R30≤65.7, rear mirror surface meet relational expression:
The mm of 30.3 mm≤R31≤32.75, with a thickness of 2mm；The radius of curvature R 32 of mirror surface meets relational expression before 5th gluing unit: 74
The mm of mm≤R32≤78.564, the radius of curvature R 33 of cemented surface meet relational expression: -175 mm≤mm of R33≤- 146, rear mirror surface
Radius of curvature R 34 meet relational expression: 30 mm≤R34≤33.6 mm, biconvex lens E-6 are with a thickness of 3.8mm, biconcave lens E-
7 with a thickness of 2mm；The radius of curvature R 35 of mirror surface meets relational expression: the mm of 38 mm≤R35≤45.6, rear mirror before biconvex lens E-8
The radius of curvature R 36 in face meets relational expression: -1255 mm≤mm of R36≤- 1150, with a thickness of 5.3mm.
Further, the mechanical structure of the camera lens include preceding fixed group component, zoom group component, compensation group component, after
Fixation kit and optical filter box, preceding fixed group component peripheral side are equipped with electric focusing mechanism, zoom group component and compensation group group
Part peripheral side is equipped with electric continuous zooming heat mechanism, and rear fixation kit peripheral side is equipped with electronic dimming mechanism.
Further, the preceding fixed group component includes the focusing drum of fixed group of A before being equipped with, and the focusing drum is installed on
It focuses in primary mirror seat, the electric focusing mechanism includes focusing ring, focusing guide pin, focusing motor, focusing motor gear, motor shaft
Set and focusing motor rack；The zoom group component includes the zoom lens barrel for being equipped with zoom group B, and compensation group component includes being equipped with
The compensation lens barrel of compensation group C, the Zoom lens barrel are mounted on zoom balladeur train by joint bolt；The compensation lens barrel passes through connection
It connects screw to be mounted on compensation balladeur train, the zoom balladeur train and compensation balladeur train are respectively charged into zoom body tube；The electronic company
Continuous zoom mechanism includes zoom motor frame, zoom motor gear, zoom motor, zoom microswitch and zoom microswitch frame；
Fixation kit includes the light bar joint chair of fixed group E after internal be equipped with after described, and the electronic dimming mechanism includes light bar motor
Frame, light bar motor, light bar motor gear, light bar gear, light bar gear pressing ring, switch gag lever post, light bar microswitch and light bar
Switch frame.
Another technical solution of the present invention: a kind of working method of wide spectrum high definition low-light zoom lens as described above, focusing
Focusing drum is driven when electrical power rotates does tandem movement, to realize the focusing to far and near target；Zoom motor is logical
Electricity rotation realizes that zoom group B, compensation group C make tandem movement, to realize the consecutive variations function of system focal length；Light bar electricity
Machine, which is powered when rotating, drives iris diaphgram D7 rotation, to control the variation of aperture openings size, realizes that Electronic control aperture is big
Small process.
Compared with prior art, the invention has the following advantages: 1 light passing amount is big, relative aperture reaches when short focus
2.0, relative aperture has also reached 2.6 when focal length, meets the use demand of dim environment；2 operating spectrum bands are wide, are operable with
400nm-1000nm meets the use demand under haze environment；3, using positive group collocation structure, it is highest to improve ray height
The focal power ability to take the burden of preceding fixed group A, and ultra-low dispersion material is used, it significantly reduces extremely outstanding in low-light camera lens
Second order spectrum aberration makes camera lens have the advantages that high-resolution, and imaging target surface is big, can be adapted to high-definition camera.
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, specific embodiment and phase will be passed through below
Attached drawing is closed, invention is further described in detail.
Detailed description of the invention
Fig. 1 is the schematic diagram of optical system of the embodiment of the present invention；
Fig. 2 is mechanical structure of embodiment of the present invention total figure；
Fig. 3 is preceding fixed group component sectional view in the embodiment of the present invention；
Fig. 4 is electric focusing mechanism perspective view in the embodiment of the present invention；
Fig. 5 is zoom group component and compensation group component sectional view in the embodiment of the present invention；
Fig. 6 is electric continuous zooming heat mechanism perspective view in the embodiment of the present invention；
Fig. 7 is electronic dimming mechanism perspective view in the embodiment of the present invention；
Fig. 8 is a rear fixed group component sectional view in the embodiment of the present invention；
Fig. 9 is optical filter box sectional view in the embodiment of the present invention；
Figure 10 is optical filter box front view in the embodiment of the present invention；
MTF figure when Figure 11 is the inventive embodiments focal length；
MTF figure when Figure 12 is the inventive embodiments short focus；
Figure label explanation:
Fixed group component, 4-2. electric focusing mechanism, 4-3. zoom group component, 4-4. electric continuous zooming heat mechanism, 4- before 4-1.
5. compensation group component, the electronic dimming mechanism of 4-6., a fixed group component after 4-7., 4-8. optical filter box；
5-1. biconvex lens A-1,5-2. positive meniscus lens A-2,5-3. positive meniscus lens A-3,5-4. diverging meniscus lens A-4,5-
5. positive meniscus lens, 5-6.A piece pressing ring, 5-7. focusing ring pressing ring, 5-8. focusing ring washer, 5-9. steel ball, 5-10.AB every
Circle, 5-11.BC spacer ring, 5-12. focusing guide pin, 5-13. focusing primary mirror seat, 5-14.CD spacer ring, 5-15. focusing ring, 5-16. electricity
Arbor set, 5-17. focusing motor gear, 5-18. focusing motor rack, 5-19. focusing motor, 5-20. focusing drum, 5-21. switch
Gag lever post, 5-22. focusing switch frame, 5-23. focusing microswitch；
6-1. diverging meniscus lens B-1,6-2. positive meniscus lens B-2,6-3. diverging meniscus lens B-3,6-4. plano-concave lens B-4,6-
5. zoom group lens barrel, 6-6. zoom group pressing ring, 6-7. zoom balladeur train, 6-8. zoom body tube, 6-9. steel ball, 6-10. cam, 6-
11. zoom guide pin, 6-12. compensates balladeur train, 6-13. motor shaft sleeve, 6-14. zoom motor gear, 6-15. zoom motor frame, 6-
16. zoom motor, 6-18. compensation group lens barrel, 6-19. compensation group pressing ring, 6-20.JK spacer ring, 6-21.LM spacer ring, 6-22. are bis-
Convex lens C-4,6-23. biconvex lens C-3,6-24. diverging meniscus lens C-2,6-25. biconvex lens C-1,6-26. cam pressing ring,
6-27. steel ball washer, 6-28. switch gag lever post, 6-29. zoom microswitch, 6-30. zoom switch frame；
7-1. diverging meniscus lens E-1,7-2.NO spacer ring, 7-3. positive meniscus lens E-2,7-4.OP spacer ring, 7-5. diverging meniscus lens
E-3,7-6. positive meniscus lens E-4,7-7.QR spacer ring, 7-8. diverging meniscus lens E-5,7-9.RS spacer ring, 7-10. biconvex lens E-
6,7-11. biconcave lens E-7,7-12. biconcave lens E-8,7-13.TU spacer rings, 7-14. light bar gear pressing ring, 7-15. light bar tooth
Wheel, 7-16. light bar, which is dialled, follows closely, 7-17. light bar joint chair, 7-18. light bar rotating ring pressing ring, 7-19.N piece pressing ring, 7-20. iris diaphgram D,
7-21. light bar rotating ring, 7-22. light bar motor gear, 7-23. light bar motor rack, 7-24. light bar motor, 7-25. switch limit
Bar, 7-26. light bar microswitch, 7-27. light bar switch frame；
8-1. optical filter motor, 8-2. motor shaft sleeve, 8-3. motor gear, 8-4. third wheel, 8-5. optical filter, 8-6. optical filter turn
Axis, 8-7. optical filter seat board, 8-8. optical filter microswitch, 8-9. filter wheel, 8-10. optical filter pressing ring.
Specific embodiment
As shown in Fig. 1 ~ 12, a kind of wide spectrum high definition low-light zoom lens, the optical system of the camera lens includes along light
A, the zoom group B that focal power is negative, focal power are organized in the preceding fixation that the focal power that incident direction is set gradually from front to back is positive
The rear fixed group E that positive compensation group C, iris diaphgram D, focal power are positive；Before described a fixed group A include biconvex lens A-1, it is just curved
The first gluing unit of moon lens A-2, positive meniscus lens A-3, diverging meniscus lens A-4 and positive meniscus lens A-5 contiguity；The zoom
Group B include diverging meniscus lens B-1 with second gluing unit of the positive meniscus lens B-2 together with diverging meniscus lens B-3 three contiguity,
Plano-concave lens B-4；The compensation group C includes the third glue of biconvex lens C-1, diverging meniscus lens C-2 and biconvex lens C-3 contiguity
It is combined, biconvex lens C-4；After described a fixed group E include diverging meniscus lens E-1, positive meniscus lens E-2, diverging meniscus lens E-3 and
4th gluing unit of positive meniscus lens E-4 contiguity, diverging meniscus lens E-5, biconvex lens E-6 and biconcave lens E-7 contiguity the
Five gluing units, biconvex lens E-8, optical filter E-9.
In the present embodiment, 7.36~65.16mm of airspace between the preceding fixed group A and zoom group B, the change
The airspace between group B and compensation group C is 110.877~2.686mm again, the sky between the compensation group C and rear fixed group of E
7.285~57.674mm is divided between gas, the positive meniscus lens A-2, positive meniscus lens A-3 use the SFPL53 material of ultra-low dispersion
Material.
In the present embodiment, the airspace between the biconvex lens A-1 and positive meniscus lens A-2 is 0.6mm, described
Airspace between positive meniscus lens A-2 and positive meniscus lens A-3 is 0.6mm, and the positive meniscus lens A-3 and first is glued
Airspace between group is 16.5mm；Airspace between second gluing unit and plano-concave lens B-4 is 6.15mm；Institute
Stating airspace between biconvex lens C-1 and third gluing unit is 0.1mm, the third gluing unit and biconvex lens C-4 it
Between airspace be 0.1mm；Airspace between the diverging meniscus lens E-1 and positive meniscus lens E-2 is 0.1mm, institute
Stating the airspace between positive meniscus lens E-2 and the 4th gluing unit is 4.40m, the 4th gluing unit and diverging meniscus lens E-
Airspace between 5 is 5.00mm, and the airspace between the diverging meniscus lens E-5 and the 5th gluing unit is 4.9m, institute
The airspace stated between the 5th gluing unit and biconvex lens E-8 is 11.8mm, between the biconvex lens E-8 and optical filter
Airspace is 2mm, optical filter with a thickness of 3mm, the airspace between optical filter and imaging target surface is 23mm.
In the present embodiment, the radius of curvature R 1 of mirror surface meets relational expression before the biconvex lens A-1: 465mm≤R1≤
475 mm, the radius of curvature R 2 of rear mirror surface meet relational expression: -780 mm≤mm of R2≤- 745, with a thickness of 11.10mm, material is
LAFN23；The radius of curvature R 3 of mirror surface meets relational expression: the mm of 119.02 mm≤R3≤125.4, rear mirror before positive meniscus lens A-2
The radius of curvature R 4 in face meets relational expression: the mm of 700 mm≤R4≤722, with a thickness of 17.5mm, material SFPL53；Positive bent moon
The radius of curvature R 5 of mirror surface meets relational expression: the mm of 192.75 mm≤R5≤197.462, the curvature half of rear mirror surface before lens A-3
Diameter R6 meets relational expression: the mm of 519.40 mm≤R6≤529.785, with a thickness of 10.20mm, material SFPL53；First is glued
The radius of curvature R 7 of mirror surface meets relational expression: the mm of 1000.5 mm≤R7≤1025.457, the radius of curvature R 8 of cemented surface before group
Meet relational expression: the mm of 70.8 mm≤R8≤71, the radius of curvature R 9 of rear mirror surface meets relational expression: 242.529 mm≤R9≤
255.457 mm, diverging meniscus lens A-4 are with a thickness of 4.6mm, and material LASF33, positive meniscus lens A-5 is with a thickness of 14mm, material
For LAFN23；The radius of curvature R 10 of mirror surface meets relational expression: the mm of 3444 mm≤R10≤7825.46 before second gluing unit, the
The radius of curvature R 11 of one cemented surface meets relational expression: the mm of 40.2 mm≤R11≤45.3, the curvature half of second cemented surface
Diameter R12 meets relational expression: the mm of 517 mm≤R12≤545, and the radius of curvature R 13 of preceding mirror surface meets relational expression: 60.072 mm≤
R13≤63.47 mm, diverging meniscus lens B-1 with a thickness of 2.6mm, material LAF13, positive meniscus lens B-2 with a thickness of 9.8mm,
Material is N-SF66, and diverging meniscus lens B-3 is with a thickness of 2.5mm, material LASFN15；The curvature of mirror surface half before plano-concave lens B-4
Diameter R14 meets relational expression: -85.2 mm≤mm of R14≤- 84.3, and rear mirror surface is plane, and with a thickness of 2.5mm, material is
LASFN15；The radius of curvature R 16 of mirror surface meets relational expression: the mm of 138 mm≤R16≤142.5, rear mirror surface before biconvex lens C-1
Radius of curvature R 17 meet relational expression: -206.5 mm≤mm of R17≤- 200.02, with a thickness of 5.1mm, material LAFN23；
The radius of curvature R 18 of mirror surface meets relational expression: the mm of 180 mm≤R18≤192.75, the curvature half of cemented surface before third gluing unit
Diameter R19 meets relational expression: the mm of 60 mm≤R19≤75.9, and the radius of curvature R 20 of rear mirror surface meets relational expression: -245 mm≤
The mm of R20≤- 200.5, diverging meniscus lens C-2 with a thickness of 2.2mm, material H-ZF62, biconvex lens C-3 with a thickness of 7.0mm,
Material is FCD100；The radius of curvature R 21 of mirror surface meets relational expression: the mm of 114 mm≤R21≤125.7 before biconvex lens C-4,
The radius of curvature R 22 of mirror surface meets relational expression afterwards: -1985 mm≤mm of R22≤- 1902.2, with a thickness of 4.15mm, material is
LAFN23；The radius of curvature R 23 of mirror surface meets relational expression: -115 mm≤mm of R23≤- 100, rear mirror before diverging meniscus lens E-1
The radius of curvature R 24 in face meets relational expression: -320 mm≤mm of R24≤- 280, with a thickness of 2.5mm, material ZF52；Positive bent moon
The radius of curvature R 25 of mirror surface meets relational expression: the mm of 32 mm≤R25≤35 before lens E-2, and the radius of curvature R 26 of rear mirror surface is full
Sufficient relational expression: the mm of 70 mm≤R26≤75.5, with a thickness of 6.5mm, material N-SF66, the curvature of mirror surface before the 4th gluing unit
Radius R27 meets relational expression: the mm of 75 mm≤R27≤80, and the radius of curvature R 28 of cemented surface meets relational expression: 20 mm≤R28
≤ 22 mm, the radius of curvature R 29 of rear mirror surface meet relational expression: the mm of 140 mm≤R29≤165.42, diverging meniscus lens E-3's
With a thickness of 2.8mm, material SF57HHT, positive meniscus lens E-4 with a thickness of 8mm, material FCD100；Diverging meniscus lens E-5
The radius of curvature R 30 of preceding mirror surface meets relational expression: the mm of 63.5 mm≤R30≤65.7, and the radius of curvature R 31 of rear mirror surface, which meets, closes
It is formula: the mm of 30.3 mm≤R31≤32.75, with a thickness of 2mm, material SF6；The radius of curvature R 32 of mirror surface before 5th gluing unit
Meet relational expression: the mm of 74 mm≤R32≤78.564, the radius of curvature R 33 of cemented surface meets relational expression: -175 mm≤R33
≤ -146 mm, the radius of curvature R 34 of rear mirror surface meet relational expression: 30 mm≤R34≤33.6 mm, biconvex lens E-6 with a thickness of
3.8mm, material N-SF66, biconcave lens E-7 are with a thickness of 2mm, material F1；The radius of curvature of mirror surface before biconvex lens E-8
R35 meets relational expression: the mm of 38 mm≤R35≤45.6, and the radius of curvature R 36 of rear mirror surface meets relational expression: -1255 mm≤R36
≤ -1150 mm, with a thickness of 5.3mm, material LASFN15,
Following optical index has been reached by the optical system that above-mentioned lens set is constituted:
1, focal length: 49.6mm~303.5mm；
2, target surface size: diagonal line 19mm；
3, relative aperture: 1/2~∞；
4, optical transfer function: when transmission function spatial frequency 135lp/mm, center MTF >=0.6 can be with pixel size
The high-definition camera of 3.75um, target surface size no more than 19mm is adapted to.
5, optics overall length is less than 328mm；
6, focusing requirement: 18m~infinity imaging clearly；
7, operating temperature: -40 DEG C~60 DEG C.
The present invention combines low-light camera lens object lens of large relative aperture, fog penetration lens wide spectrum, zoom high definition camera lens and has both wide-angle and search
The advantages of rope and narrow visual field identify, and solve the disadvantage that three classes camera lens is difficult to take into account, provide a kind of big light passing amount, wide spectrum,
High-resolution big target surface high definition low-light zoom lens, whole use spheric glass, and aperture reaches 2.0, be suitable for 450nm ~
1000nm wide spectrum, target surface size reach 19mm, and focal-distance tuning range is 49.6 ~ 303.5mm.The camera lens adapts to low-light ring
Border, haze environment, adaptive faculty is strong, high resolution, and is able to satisfy the demand of wide-angle high-definition monitoring and the identification of narrow visual field high definition, is applicable in
In low-light, Penetrating Fog, special occasions security monitoring.
In the present embodiment, the mechanical structure of the camera lens includes preceding fixed group component 4-1, zoom group component 4-3, compensation
Group component 4-5, rear fixation kit 4-7 and optical filter box 4-8, preceding fixed group component peripheral side are equipped with electric focusing mechanism 4-2,
Zoom group component and compensation group component peripheral side are equipped with electric continuous zooming heat mechanism 4-4, and rear fixation kit peripheral side is equipped with electronic
Dimming mechanism 4-6；The filter set 4-8 is mounted on the rear end of camera lens, and there are two realize for the electric focusing mechanism 4-2 setting
The microswitch 5-23 of semiotic function in place is exported, there are two realize output in place for the electric continuous zooming heat mechanism 4-4 setting
The microswitch 6-29 of semiotic function, there are two realize the micro- of light bar size semiotic function in place for the electronic dimming mechanism setting
Dynamic switch 7-26.
In the present embodiment, fixed group component 4-1 includes the focusing drum 5-20 of fixed group A before being equipped with before described, described
Focusing drum 5-20 is installed in focusing primary mirror seat 5-13, will first be touched by diverging meniscus lens A-45-4 and positive meniscus lens A-55-5
First gluing unit of gluing, positive meniscus lens A-35-3, positive meniscus lens A-25-2, biconvex lens A-15-1 are sequentially loaded into focusing
It in cylinder 5-20, and is compressed, then focusing drum 5-20 is packed into focusing primary mirror seat 5-13, the electromotion focusing by A piece pressing ring 5-6
Mechanism 4-2 includes focusing ring 5-15, focusing guide pin 5-12, focusing motor 5-19, focusing motor gear 5-17, motor shaft sleeve 5-16
With focusing motor rack 5-18；The motor shaft sleeve 5-16 is mounted on motor shaft, the motor gear 5-17 that focuses is mounted on motor shaft
It covers on 5-16, the focusing motor 5-19 is mounted on focusing motor rack 5-18, and the focusing motor rack 5-18 is mounted on zoom
On body tube 6-8, precision machined 3 120 ° uniformly distributed straight troughs, the focusing ring 5- are offered on the focusing primary mirror seat 5-13
15 are mounted on focusing primary mirror seat 5-15, offered on the focusing ring 5-15 precision machined 3 120 ° it is uniformly distributed it is linear tiltedly
Slot.The focusing primary mirror seat 5-13 and focusing ring 5-15 is linked together by the guide pin 5-12 that focuses, and focus motor gear 5-17
It is engaged with the gear on focusing ring 5-15.When the motor 5-19 that focuses is powered rotation, pass through the focusing motor gear 5- on motor
17 drive focusing ring 5-15 rotation, and the rotation of focusing ring 5-15 drives the movement of focusing guide pin 5-12 again.However focusing guide pin 5-
The 12 straight trough limitation by being opened up on focusing primary mirror seat 5-13, so that the rotary motion of focusing ring 5-15 is converted to focusing drum 5-
20 linear motion, to realize the focusing to far and near target.
In the present embodiment, the zoom group component 4-3 includes the zoom lens barrel 6-5 for being equipped with zoom group B, compensation group group
Part includes being equipped with compensation the lens barrel 6-18, the Zoom lens barrel 6-5 of compensation group C to be mounted on zoom balladeur train 6- by joint bolt
On 7；The compensation lens barrel 6-18 is mounted on compensation balladeur train 6-12 by joint bolt, the zoom balladeur train 6-7, compensation balladeur train
6-12 is respectively charged into zoom body tube 6-8, the diverging meniscus lens B-16-1, positive meniscus lens B-26-2 and diverging meniscus lens
The second gluing unit and plano-concave lens B-46-4 of B-36-3 contiguity are sequentially loaded into zoom lens barrel 6-5, and with zoom group pressing ring
6-6 is compressed；The second gluing of the biconvex lens C-16-25, diverging meniscus lens C-26-24 and biconvex lens C-36-23 contiguity
Group and biconvex lens C-46-22 are sequentially loaded into compensation lens barrel 6-18, and are compressed with compensation group pressing ring 6-19, wherein described double
Be provided with JK spacer ring 6-21 between convex lens C-16-25 and double diverging meniscus lens C-26-24, the biconvex lens C-36-23 with
And LM spacer ring 6-20 is provided between biconvex lens C-46-22.The Zoom lens barrel 6-5 is mounted on zoom by joint bolt and slides
On frame 6-7；The compensation lens barrel 6-18 is mounted on compensation balladeur train 6-12 by joint bolt, the zoom balladeur train 6-7, compensation
Balladeur train 6-12 is respectively charged into zoom body tube 6-8.The cam 6-10 is mounted on zoom body tube 6- by precision steel ball 6-9
It on 8, is compressed by cam steel ball washer 6-27, and is lockked by cam pressing ring 6-26；It, can be convex by accurate steel ball 6-9
Sliding friction when wheel 6-10 rotation is changed into rolling friction, to reduce frictional force when cam 6-10 movement.The cam 6-
10 are machined with 2 zooms, compensated curve slot according to the requirement of the optical zoom equation of motion respectively, will be convex by zoom guide pin 6-11
Wheel 6-10 and zoom balladeur train 6-7, compensation balladeur train 6-12 are linked together.
In the present embodiment, the electric continuous zooming heat mechanism 4-4 includes zoom motor frame 6-15, zoom motor gear 6-
14, zoom motor 6-16, zoom microswitch 6-29 and zoom microswitch frame 6-30；The zoom microswitch 6-29 installation
On zoom microswitch frame 6-30；The zoom microswitch frame 6-30 is mounted on zoom body tube 6-8, the switch limit
On position bar 6-28 installation cam 6-10, the zoom motor gear 6-14, zoom motor 6-16 are installed in zoom motor frame 6-
On 15；The zoom motor frame 6-15 is mounted on light bar joint chair 7-17；The cam 6-10 is nibbled with zoom motor gear 6-14
It closes, when zoom rotor makees positive and negative rotary motion, is rotated synchronously by zoom motor gear 6-14 band moving cam 6-10.It is convex
Zoom, compensated curve slot are offered on wheel 6-10, and zoom guide pin 6-11 is mounted on zoom, in compensated curve slot.It is led by zoom
Following closely 6-11 drives zoom balladeur train 6-7, compensation balladeur train 6-12 to move according to the track of zoom, compensated curve slot.Zoom primary mirror simultaneously
Corresponding straight trough is also offered on cylinder 6-8, zoom guide pin 6-11 is support by the straight trough of zoom body tube 6-8, and make to become
Times balladeur train 6-7, compensation balladeur train 6-12 make tandem movement.Strict control zoom guide pin 6-11 and cam 6-10 when design
Curved groove, zoom body tube 6-8 straight-line groove between fit clearance, guarantee zoom balladeur train 6-7, compensation balladeur train 6-12 in zoom
Sliding in body tube 6-8 it is steady it is comfortable, without clamping stagnation.Zoom group B, compensation group C are realized by zoom motor 6-16 rotation in this way
Make tandem movement by zoom motion equation requirement, to realize the consecutive variations function of system focal length.Meanwhile the cam
Switch gag lever post 6-28 when 6-10 is rotated thereon is contacted with zoom microswitch 6-29, realizes the control in place of long short focus.
In the present embodiment, the rear fixation kit includes the light bar joint chair 5-17 of fixed group E after internal be equipped with, is born curved
Month lens E-17-1, positive meniscus lens E-27-3, diverging meniscus lens E-37-5 and positive meniscus lens E-47-6 contiguity it is glued the
5th gluing of four gluing units, diverging meniscus lens E-57-8, biconvex lens E-67-10 and biconcave lens E-77-11 contiguity gluing
Group, biconvex lens E-87-12 are sequentially installed in light bar joint chair 7-17 and are compressed by N piece pressing ring 7-19, the diverging meniscus lens
It is separated between E-17-1 and positive meniscus lens E-27-3 with NO spacer ring 7-2, the positive meniscus lens E-27-3 and diverging meniscus lens
It is separated between E-37-5 with OP spacer ring 7-4, QR spacer ring is used between the positive meniscus lens E-47-6 and diverging meniscus lens E-57-8
7-7 is separated, and is separated between the diverging meniscus lens E-57-8 and biconvex lens E-67-10 with RS spacer ring 7-9, the biconcave lens
It is separated between E-77-11 and biconvex lens E-87-12 with TU spacer ring 7-13.
In the present embodiment, the electronic dimming mechanism 4-5 includes light bar motor rack 7-23, light bar motor 7-24, light bar
Motor gear 7-22, light bar gear 7-15, light bar gear pressing ring 7-14, switch gag lever post 7-25, light bar microswitch 7-26 and
Light bar switch frame 7-27.The switch gag lever post 7-25 is mounted on light bar gear 7-15 circumference；The light bar motor 7-24, light
Column motor gear 7-22 is mounted on light bar motor rack 7-23；The light bar motor rack 7-23 is mounted on light bar joint chair 7-17 circumference
On；The light bar switch frame 7-27, light bar microswitch 7-26 are mounted on light bar joint chair 7-17 circumference；The iris diaphgram
D7-5 is mounted on light bar rotating ring 7-21, light bar joint chair 7-17.The light bar gear 7-8 is mounted on light bar joint chair 7-1, is used in combination
Light bar gear pressing ring 7-9 is compressed.Nail 7-16 is dialled by light bar to be linked together light bar rotating ring 7-21, light bar gear 7-15.Institute
Light bar motor gear 7-22 and light bar gear 7-15 is stated to mesh together.When light bar motor 7-24, which is powered, to be rotated, pass through light bar
Motor gear 7-22 drives light bar gear 7-15 rotation, and light bar gear 7-15 rotation dials nail 7-16 further through light bar and drives light bar dynamic
Ring 7-21 rotation；And light bar rotating ring 7-21 rotation drives iris diaphgram D7-20 rotation, to control the change of aperture openings size
Change, realizes the process of Electronic control aperture size.And light bar gear 7-15 when rotating by switch gag lever post 7-25 thereon with
Light bar microswitch 7-26 contact, realizes the control in place of aperture size.
In the present embodiment, the optical filter box include optical filter motor 8-1, motor shaft sleeve 8-2, motor gear 8-3,
Third wheel 8-4, optical filter 8-5, optical filter shaft 8-6, optical filter seat board 8-7, optical filter microswitch 8-8, filter wheel 8-
9, optical filter pressing ring 8-10 etc., the optical filter 8-5 are mounted on the inner hole of filter wheel 8-9 and by optical filter pressing ring 8-10
It compresses, the filter wheel 8-9 is mounted on optical filter seat board 8-7 by optical filter shaft 8-6, the optical filter motor 8-
Filter wheel 8-9 rotation is driven by motor gear 8-3, third wheel 8-4 when 1 rotation, realizes optical filter switching.
To reduce system length, it is desirable that the zoom group of system and the moving range of compensation group are as small as possible, therefore using most
Fast zoom cam curve design, as the multiplying power m2=- 1 of zoom group, the multiplying power │ m2 │ of compensation group presses steepest zoom line-of-road movement,
By above-mentioned measure, so that the lead of zooming procedure is minimum, optics overall length is most short, reduces the volume of whole system.
A kind of working method of wide spectrum high definition low-light zoom lens as described above, focusing electrical power drive when rotating and adjust
Burnt cylinder does tandem movement, to realize the focusing to far and near target；Zoom motor is powered to rotating and realizes zoom group B, mends
It repays a group C and makees tandem movement, to realize the consecutive variations function of system focal length；It is driven when light bar electrical power rotates variable
Diaphragm D7 rotation realizes the process of Electronic control aperture size to control the variation of aperture openings size；Optical filter motor turns
Filter wheel rotation is driven by motor gear when dynamic, realizes optical filter switching.
Above-listed preferred embodiment, has been further described the object, technical solutions and advantages of the present invention, is answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of wide spectrum high definition low-light zoom lens, it is characterised in that: the optical system of the camera lens include along light from before
Preceding fixed A, the zoom group B that focal power is negative, the focal power organized that the focal power that incident direction is set gradually backward is positive is positive
The rear fixed group E that compensation group C, iris diaphgram D, focal power are positive；A fixed group A includes that biconvex lens A-1, positive bent moon are saturating before described
The first gluing unit of mirror A-2, positive meniscus lens A-3, diverging meniscus lens A-4 and positive meniscus lens A-5 contiguity；The zoom group B
Including the second gluing unit together with diverging meniscus lens B-3 three contiguity of diverging meniscus lens B-1 and positive meniscus lens B-2, flat
Concavees lens B-4；The compensation group C includes the third gluing of biconvex lens C-1, diverging meniscus lens C-2 and biconvex lens C-3 contiguity
Group, biconvex lens C-4；A fixed group E includes diverging meniscus lens E-1, positive meniscus lens E-2, diverging meniscus lens E-3 and just after described
The 5th of the 4th gluing unit, diverging meniscus lens E-5, biconvex lens E-6 and biconcave lens E-7 contiguity that meniscus lens E-4 touches
Gluing unit, biconvex lens E-8, optical filter E-9.
2. wide spectrum high definition low-light zoom lens according to claim 1, it is characterised in that: fixed group A and change before described
7.36~65.16mm of airspace between group B, the airspace between the zoom group B and compensation group C are 110.877 again
Airspace between~2.686mm, the compensation group C and rear fixed group E is 7.285~57.674mm, and the positive bent moon is saturating
Mirror A-2, positive meniscus lens A-3 use the SFPL53 material of ultra-low dispersion.
3. wide spectrum high definition low-light zoom lens according to claim 1, it is characterised in that: the biconvex lens A-1 with
Airspace between positive meniscus lens A-2 is 0.6mm, the air between the positive meniscus lens A-2 and positive meniscus lens A-3
Between be divided into 0.6mm, the airspace between the positive meniscus lens A-3 and the first gluing unit be 16.5mm；Described second is glued
Airspace between group and plano-concave lens B-4 is 6.15mm；Between air between the biconvex lens C-1 and third gluing unit
It is divided into 0.1mm, the airspace between the third gluing unit and biconvex lens C-4 is 0.1mm；The diverging meniscus lens E-1
Airspace between positive meniscus lens E-2 is 0.1mm, the air between the positive meniscus lens E-2 and the 4th gluing unit
Between be divided into 4.40m, the airspace between the 4th gluing unit and diverging meniscus lens E-5 is 5.00mm, and the negative bent moon is saturating
Airspace between mirror E-5 and the 5th gluing unit is 4.9m, between the air between the 5th gluing unit and biconvex lens E-8
It is divided into 11.8mm, the airspace between the biconvex lens E-8 and optical filter is 3mm.
4. wide spectrum high definition low-light zoom lens according to claim 3, it is characterised in that: before the biconvex lens A-1
The radius of curvature R 1 of mirror surface meets relational expression: the radius of curvature R 2 of the mm of 465mm≤R1≤475, rear mirror surface meet relational expression :-
780 mm≤the mm of R2≤- 745, with a thickness of 11.10mm；The radius of curvature R 3 of mirror surface meets relational expression before positive meniscus lens A-2:
The mm of 119.02 mm≤R3≤125.4, the radius of curvature R 4 of rear mirror surface meet relational expression: the mm of 700 mm≤R4≤722, thickness
For 17.5mm；The radius of curvature R 5 of mirror surface meets relational expression: the mm of 192.75 mm≤R5≤197.462 before positive meniscus lens A-3,
The radius of curvature R 6 of mirror surface meets relational expression: the mm of 519.40 mm≤R6≤529.785 afterwards, with a thickness of 10.20mm；First is glued
The radius of curvature R 7 of mirror surface meets relational expression: the mm of 1000.5 mm≤R7≤1025.457, the radius of curvature R 8 of cemented surface before group
Meet relational expression: the mm of 70.8 mm≤R8≤71, the radius of curvature R 9 of rear mirror surface meets relational expression: 242.529 mm≤R9≤
255.457 mm, diverging meniscus lens A-4 are with a thickness of 4.6mm, and positive meniscus lens A-5 is with a thickness of 14mm；Mirror surface before second gluing unit
Radius of curvature R 10 meet relational expression: the mm of 3444 mm≤R10≤7825.46, the radius of curvature R 11 of first cemented surface is full
Sufficient relational expression: the mm of 40.2 mm≤R11≤45.3, the radius of curvature R 12 of second cemented surface meet relational expression: 517 mm≤
The mm of R12≤545, the radius of curvature R 13 of preceding mirror surface meet relational expression: the mm of 60.072 mm≤R13≤63.47, diverging meniscus lens
B-1 is with a thickness of 2.6mm, and positive meniscus lens B-2 is with a thickness of 9.8mm, and diverging meniscus lens B-3 is with a thickness of 2.5mm；Plano-concave lens B-4
The radius of curvature R 14 of preceding mirror surface meets relational expression: -85.2 mm≤mm of R14≤- 84.3, and rear mirror surface is plane, with a thickness of
2.5mm；The radius of curvature R 16 of mirror surface meets relational expression: the mm of 138 mm≤R16≤142.5 before biconvex lens C-1, rear mirror surface
Radius of curvature R 17 meets relational expression: -206.5 mm≤mm of R17≤- 200.02, with a thickness of 5.1mm；Mirror surface before third gluing unit
Radius of curvature R 18 meet relational expression: the radius of curvature R 19 of the mm of 180 mm≤R18≤192.75, cemented surface meet relational expression:
The mm of 60 mm≤R19≤75.9, the radius of curvature R 20 of rear mirror surface meet relational expression: -245 mm≤mm of R20≤- 200.5, bear
Meniscus lens C-2 is with a thickness of 2.2mm, and biconvex lens C-3 is with a thickness of 7.0mm；The radius of curvature R 21 of mirror surface before biconvex lens C-4
Meet relational expression: the mm of 114 mm≤R21≤125.7, the radius of curvature R 22 of rear mirror surface meets relational expression: -1985 mm≤R22
≤ -1902.2 mm, with a thickness of 4.15mm；The radius of curvature R 23 of mirror surface meets relational expression: -115 mm before diverging meniscus lens E-1
≤ R23≤- 100 mm, the radius of curvature R 24 of rear mirror surface meet relational expression: -320 mm≤mm of R24≤- 280, with a thickness of
2.5mm；The radius of curvature R 25 of mirror surface meets relational expression: the mm of 32 mm≤R25≤35, the song of rear mirror surface before positive meniscus lens E-2
Rate radius R26 meets relational expression: the mm of 70 mm≤R26≤75.5, with a thickness of 6.5mm, the curvature of mirror surface half before the 4th gluing unit
Diameter R27 meets relational expression: the mm of 75 mm≤R27≤80, and the radius of curvature R 28 of cemented surface meets relational expression: 20 mm≤R28≤
22 mm, the radius of curvature R 29 of rear mirror surface meet relational expression: the mm of 140 mm≤R29≤165.42, the thickness of diverging meniscus lens E-3
Degree be 2.8mm, positive meniscus lens E-4 with a thickness of 8mm；The radius of curvature R 30 of mirror surface meets relationship before diverging meniscus lens E-5
Formula: the mm of 63.5 mm≤R30≤65.7, the radius of curvature R 31 of rear mirror surface meet relational expression: 30.3 mm≤R31≤32.75
Mm, with a thickness of 2mm；The radius of curvature R 32 of mirror surface meets relational expression: the mm of 74 mm≤R32≤78.564, glue before 5th gluing unit
The radius of curvature R 33 in conjunction face meets relational expression: -175 mm≤mm of R33≤- 146, the radius of curvature R 34 of rear mirror surface meet relationship
Formula: 30 mm≤R34≤33.6 mm, biconvex lens E-6 are with a thickness of 3.8mm, and biconcave lens E-7 is with a thickness of 2mm；Biconvex lens E-
The radius of curvature R 35 of mirror surface meets relational expression: the mm of 38 mm≤R35≤45.6 before 8, and the radius of curvature R 36 of rear mirror surface, which meets, closes
It is formula: -1255 mm≤mm of R36≤- 1150, with a thickness of 5.3mm.
5. wide spectrum high definition low-light zoom lens according to claim 1, it is characterised in that: the mechanical structure of the camera lens
Including preceding fixed group component, zoom group component, compensation group component, rear fixation kit and optical filter box, outside preceding fixed group component
Side is equipped with electric focusing mechanism, and zoom group component and compensation group component peripheral side are equipped with electric continuous zooming heat mechanism, rear fixed
Component peripheral side is equipped with electronic dimming mechanism.
6. wide spectrum high definition low-light zoom lens according to claim 5, it is characterised in that: fixed group component packet before described
The focusing drum of fixed group A before being equipped with is included, the focusing drum is installed in focusing primary mirror seat, and the electric focusing mechanism includes adjusting
Jiao Huan, focusing guide pin, focusing motor, focusing motor gear, motor shaft sleeve and focusing motor rack；The zoom group component includes peace
Zoom lens barrel equipped with zoom group B, compensation group component include the compensation lens barrel for being equipped with compensation group C, and the Zoom lens barrel passes through
Joint bolt is mounted on zoom balladeur train；The compensation lens barrel is mounted on compensation balladeur train by joint bolt, and the zoom is sliding
Frame and compensation balladeur train are respectively charged into zoom body tube；The electric continuous zooming heat mechanism includes zoom motor frame, zoom motor
Gear, zoom motor, zoom microswitch and zoom microswitch frame；Fixation kit includes fixed after inside is equipped with after described
Group E light bar joint chair, the electronic dimming mechanism include light bar motor rack, light bar motor, light bar motor gear, light bar gear,
Light bar gear pressing ring, switch gag lever post, light bar microswitch and light bar switch frame.
7. a kind of working method of wide spectrum high definition low-light zoom lens as claimed in claim 5, it is characterised in that: focusing motor
Focusing drum is driven when energization rotation does tandem movement, to realize the focusing to far and near target；Zoom motor, which is powered, to be revolved
Turn to realize that zoom group B, compensation group C make tandem movement, to realize the consecutive variations function of system focal length；Light bar motor is logical
Iris diaphgram D7 rotation is driven when electricity rotation, to control the variation of aperture openings size, realizes Electronic control aperture size
Process.
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| CN201811475882.1A CN109358419B (en) | 2018-12-04 | 2018-12-04 | Wide-spectrum high-definition low-light zoom lens and working method thereof |
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| CN201811475882.1A CN109358419B (en) | 2018-12-04 | 2018-12-04 | Wide-spectrum high-definition low-light zoom lens and working method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296815A (en) * | 2019-07-02 | 2019-10-01 | 舜宇光学(中山)有限公司 | Detection device and detection method for electromotive focusing camera lens |
| CN111796407A (en) * | 2020-07-09 | 2020-10-20 | 孝感华中精密仪器有限公司 | Multi-groove multi-guide wide-spectrum continuous zoom lens |
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| EP0727683A2 (en) * | 1995-02-20 | 1996-08-21 | Matsushita Electric Industrial Co., Ltd | Zoom lens and video camera comprising the same |
| CN101261355A (en) * | 2007-03-06 | 2008-09-10 | 扬明光学股份有限公司 | Zoom lens |
| CN107315238A (en) * | 2017-08-17 | 2017-11-03 | 福建福光股份有限公司 | A kind of high-resolution zoom camera lens |
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2018
- 2018-12-04 CN CN201811475882.1A patent/CN109358419B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0727683A2 (en) * | 1995-02-20 | 1996-08-21 | Matsushita Electric Industrial Co., Ltd | Zoom lens and video camera comprising the same |
| CN101261355A (en) * | 2007-03-06 | 2008-09-10 | 扬明光学股份有限公司 | Zoom lens |
| CN107315238A (en) * | 2017-08-17 | 2017-11-03 | 福建福光股份有限公司 | A kind of high-resolution zoom camera lens |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296815A (en) * | 2019-07-02 | 2019-10-01 | 舜宇光学(中山)有限公司 | Detection device and detection method for electromotive focusing camera lens |
| CN111796407A (en) * | 2020-07-09 | 2020-10-20 | 孝感华中精密仪器有限公司 | Multi-groove multi-guide wide-spectrum continuous zoom lens |
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|---|---|
| CN109358419B (en) | 2023-07-28 |
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