CN203149184U - Two-component optical compensation zoom lens - Google Patents
Two-component optical compensation zoom lens Download PDFInfo
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- CN203149184U CN203149184U CN2012200244479U CN201220024447U CN203149184U CN 203149184 U CN203149184 U CN 203149184U CN 2012200244479 U CN2012200244479 U CN 2012200244479U CN 201220024447 U CN201220024447 U CN 201220024447U CN 203149184 U CN203149184 U CN 203149184U
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- lens
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- component
- zoom lens
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Abstract
The utility model discloses a two-component optical compensation zoom lens. The two-component optical compensation zoom lens comprises a main barrel component, a front component and a rear component. The front component comprises a front lens barrel, a space ring, a front pressing ring and a compensation lens group, the rear component comprises a rear lens barrel, a space ring, a rear pressing ring and a zoom lens group, and the compensation lens group and the zoom lens group include nine lenses and at least two bonding lenses. The total focal power of the compensation lens group is negative, the total focal power of the zoom lens group is positive, the front component and the rear component move in the main barrel component, and focus variation of the whole lens is adjusted by changing relative position mutual compensation image planes of the compensation lens group and the zoom lens group. Assembling steps of the two-component optical compensation zoom lens include assembling seven optical lenses, two space rings and two pressing rings, the assembling includes eleven steps in total, seven steps are reduced as compared with assembling of ordinary lenses, efficiency is improved by about 40%, and further, manufacturing errors are reduced, optical stability is improved, the qualified rate of image quality is substantially improved, and the two-component optical compensation zoom lens has a wide application range.
Description
Technical field
The art of this patent belongs to the optical, mechanical and electronic integration field, relates to a kind of two constituent element optical compensation zoom lens, particularly about a kind of compact two constituent element optical compensation zoom lens that assemble.
Background technology
Along with security precautions and automaticity improve constantly, demand to the monitoring camera lens also constantly improves, the manpower and materials of the assembling cost of camera lens also constantly increase, under the environment that can't realize the robotization assembling at present, the quantity of lens optical assembly and mechanical component quantity with matching directly have influence on operating personnel's efficiency of assembling; The fitment stability of optical module and mechanical component directly has influence on the qualification rate of assembling finished product.So, under the existence conditions of artificial assembling, as much as possible the light path design of optical lens is got simple and compact for structurely, optical module cooperates simple and stable with mechanical component, is easy to assemble, and assembles the qualification rate height.The zoom lens that the art of this patent scheme provides, its optics installation step assembly comprises seven optical lenses, two spacer rings, two trim rings, amount to 11 steps, general zoom lens installation step assembly comprises two spacer rings in nine optical lenses, the front assembly, five spacer rings, front and back trim ring are two in the back assembly, amount to 18 steps.Than general zoom lens, the scheme that the art of this patent provides has reduced by seven steps at fit on, and efficient has improved about 40%, also namely reduced by seven mismachining tolerances on the other hand, improved optical stability, the picture element qualification rate increases substantially, and application prospect is extensive.
Summary of the invention
The purpose of the art of this patent is two constituent element optical compensation zoom lens of a kind of compact assembling of design, improves efficiency of assembling and the qualification rate of camera lens.
In order to realize the purpose of above-mentioned patented technology, the technical scheme that the art of this patent provides is as follows: a kind of two constituent element optical compensation zoom lens comprise main cartridge module, front assembly, back assembly.Described front assembly comprises preceding arrangement of mirrors tube, spacer ring, preceding group of trim ring and compensating glass group.Described back assembly comprises back arrangement of mirrors tube, spacer ring, back group trim ring and becomes times mirror group.Described compensating glass group and a change times mirror group are provided with nine lens altogether, comprising two balsaming lenss.The total focal power of compensating glass group is for negative, become times total focal power of mirror group into just, front assembly and back assembly are mobile in main cartridge module, change the compensating glass group and compensate the focal length variations that image planes are regulated whole camera lens mutually with the relative position that becomes times mirror group, and focal length becomes the multiple proportions scope: 2～4.5 times.
Further, the compensating glass group is provided with by object one side tactic, first lens, second lens, the 3rd lens, and first lens is the negative focus lens of a slice convex-concave; Second lens is the negative focus lens of a slice concave-concave, and the 3rd lens are the positive focus lens of a slice convex-concave.
Further, described first lens and second lens are directly near assembling, and described second lens and the 3rd lens centre are provided with a spacer ring and separate assembling.
Further, become a times mirror group be provided with by object one side tactic, the 4th lens, the 5th lens, six-element lens, the 7th lens, the 8th lens, the 9th lens, the 4th lens are the positive focus lens of a slice biconvex; The 5th lens are the concavo-convex negative focus lens of a slice; Six-element lens and the 7th lens are one group of balsaming lenss, six-element lens is that first of a slice is protruding positive focus lens, the 7th lens are that second of a slice is recessed negative focus lens, second of six-element lens is cemented surface with the 7th first on lens, radius-of-curvature equates, cemented surface is recessed or protruding, uses the optics glue glued adhesion, glues together total focal power for negative; The 8th lens and the 9th lens are one group of balsaming lenss, the 8th lens are that first of a slice is protruding positive focus lens, the 9th lens are that second of a slice is protruding negative focus lens, first of second on the 8th lens and the 9th lens is cemented surface, radius-of-curvature equates, cemented surface is recessed or protruding, uses the optics glue glued adhesion, glues together total focal power for just.
Further, described the 4th lens and the 5th lens are directly near assembling; Be provided with a spacer ring in the middle of the balsaming lens of described the 5th lens and the 6th, seven lens composition and separate assembling; The balsaming lens of the balsaming lens that described the 6th, seven lens are formed and the 8th, nine lens composition is directly near assembling.
Further, all lens surfaces all are coated with one deck anti-reflection film at least, do not comprise cemented surface, see through visible light and infrared light simultaneously, have infrared function, and night down also can imaging the auxiliary of infrared lamp.
The zoom lens of making according to technique scheme, its optics installation step comprises seven optical lenses, two spacer rings, two trim rings, amount to 11 steps, similar camera lens installation step comprises two spacer rings in nine optical lenses, the front assembly, five spacer rings, front and back trim ring are two in the back assembly, amount to 18 steps.Compare similar camera lens, the scheme that the art of this patent provides has reduced by seven steps at fit on, and efficient has improved about 40%, also reduces foozle on the other hand, has improved optical stability, and the picture element qualification rate increases substantially, and has wide range of applications.
Description of drawings
Accompanying drawing 1 is that figure is partly cutd open in the art of this patent assembling.
Accompanying drawing 2 is the art of this patent optical system diagrams in one embodiment.
Embodiment
Below in conjunction with accompanying drawing the art of this patent embodiment is described.Should be noted that the purpose of accompanying drawing just is convenient to the explanation to the art of this patent specific embodiment, is not a kind of unnecessary narration or to the restriction of the art of this patent scope.
As shown in Figure 1, the art of this patent two constituent element optical compensation zoom lens comprise main cartridge module 1, front assembly 2, back assembly 3.Front assembly 2 comprises preceding arrangement of mirrors tube 21, spacer ring 22, preceding group of trim ring 23 and compensating glass group 24.Back assembly 3 comprises back arrangement of mirrors tube 31, spacer ring 32, back group trim ring 33 and becomes times mirror group 34.Compensating glass group 24 and a change times mirror group 34 are provided with nine lens altogether, comprising at least two balsaming lenss.Front assembly 2 and back assembly 3 are mobile in main cartridge module 1, change compensating glass group 24 and compensate the focal length variations that image planes are regulated whole camera lens mutually with the relative position that becomes times mirror group 34, and focal length becomes the multiple proportions scope: 2～4.5 times.
Described compensating glass group 24 is provided with by object one side tactic, first lens L1, second lens L2, the 3rd lens L3, and first lens L1 is the negative focus lens of a slice convex-concave; Second lens L2 is the negative focus lens of a slice concave-concave, and the 3rd lens L3 is the positive focus lens of a slice convex-concave.First lens L1 and second lens L2 are directly near assembling.Second lens L2 and the 3rd lens L3 centre are provided with a spacer ring 22 and separate assembling.
A described change times mirror group 34 is provided with by object one side tactic, the 4th lens L4, the 5th lens L5, six-element lens L6, the 7th lens L7, the 8th lens L8, and the 4th lens L4 is the positive focus lens of a slice biconvex; The 5th lens L5 is the concavo-convex negative focus lens of a slice; Six-element lens L6 and the 7th lens L7 are one group of balsaming lenss, six-element lens L6 is that first of a slice is protruding positive focus lens, the 7th lens L7 is that second of a slice is recessed negative focus lens, second of six-element lens L6 is cemented surface with the 7th first of lens L7, radius-of-curvature equates, cemented surface is recessed or protruding, uses the optics glue glued adhesion; The 8th lens L8 and the 9th lens L9 are one group of balsaming lenss, the 8th lens L8 is that first of a slice is protruding positive focus lens, the 9th lens L9 is that second of a slice is protruding negative focus lens, first of second of the 8th lens L8 and the 9th lens L9 is cemented surface, radius-of-curvature equates, cemented surface is recessed or protruding, uses the optics glue glued adhesion.
Described the 4th lens L4 and the 5th lens L5 are directly near assembling; Be provided with a spacer ring 32 in the middle of the balsaming lens of described the 5th lens L5 and six-element lens L6 and the 7th lens L7 composition and separate assembling; The balsaming lens of the balsaming lens of described six-element lens L6 and the 7th lens L7 composition and the 8th lens L8 and the 9th lens L9 composition is directly near assembling.
Accompanying drawing 2 is depicted as the art of this patent one optical system diagram preferred embodiment.In this embodiment, the focal length that compensating glass group 24 and times mirror group 34 that becomes are provided with nine lens L1～L9 altogether, refractive index, and radius of curvature R 1～R18 meet the following conditions respectively, wherein the unit of the focal distance f 1～f9 of lens, radius of curvature R 1～R18 be millimeter:
f1＝-13.67 n1＝1.79 R1＝24.60 R2＝7.37
f2＝-12.10 n2＝1.69 R3＝-27.92 R4＝12.11
f3＝18.80 n3＝1.85 R5＝13.55 R6＝83.56
f4＝14.06 n4＝1.71 R7＝20.04 R8＝-19.28
f5＝-30.23 n5＝1.85 R9＝-12.77 R10＝-26.24
f6＝8.727 n6＝1.66 R11＝9.05 R12＝-12.25
f7＝-6.836 n7＝1.54 R13＝-12.25 R14＝5.42
f8＝5.918 n8＝1.59 R15＝8.951 R16＝-5.112
f9＝-10.57 n9＝1.81 R17＝-5.112 R18＝-13.67
S is diaphragm in the accompanying drawing 2, and I is image planes.The variation range of the displacement d24 of compensating glass group 24 is 16.0～2.0 millimeters, and the focal length of compensating glass group 24 is-9.63 millimeters; The variation range that becomes the displacement d34 of times mirror group 34 is 7.25～0.7 millimeters, and the focal length that becomes times mirror group 34 is 10.23 millimeters.The focal length variations scope of camera lens is: 3.17～9.35 millimeters, become multiple proportions and be 2.95.
The scheme that the art of this patent provides has reduced by seven steps at fit on, and efficient has improved about 40%, has also reduced foozle on the other hand, has improved optical stability, and the picture element qualification rate increases substantially, and has wide range of applications.
Be understandable that, for those of ordinary skills, can be added on to be equal to according to the design of the art of this patent scheme and patented technology thereof and replace or change, and all these changes and replace the protection domain that all should belong to the art of this patent claims.
Claims (6)
1. two constituent element optical compensation zoom lens comprise main cartridge module, front assembly, back assembly, arrangement of mirrors tube before wherein front assembly comprises, spacer ring, preceding group of trim ring and compensating glass group; Back assembly comprises back arrangement of mirrors tube, spacer ring, back group trim ring and becomes times mirror group; Compensating glass group and become a times mirror group and be provided with nine lens altogether, comprising two balsaming lenss, the total focal power of compensating glass group is for negative, becomes times total focal power of mirror group into just; Front assembly and back assembly are mobile in main cartridge module, change the compensating glass group and compensate the focal length variations that image planes are regulated whole camera lens mutually with the relative position that becomes times mirror group.
2. two constituent element optical compensation zoom lens according to claim 1, it is characterized in that: the compensating glass group is provided with by object one side tactic, first lens, second lens, the 3rd lens, first lens is the negative focus lens of a slice convex-concave; Second lens is the negative focus lens of a slice concave-concave, and the 3rd lens are the positive focus lens of a slice convex-concave.
3. two constituent element optical compensation zoom lens according to claim 2 is characterized in that: first lens and second lens are directly near assembling, are provided with a spacer ring in the middle of second lens and the 3rd lens and separate assembling.
4. two constituent element optical compensation zoom lens according to claim 1, it is characterized in that: become a times mirror group and be provided with by object one side tactic, the 4th lens, the 5th lens, six-element lens, the 7th lens, the 8th lens, the 9th lens, the 4th lens are the positive focus lens of a slice biconvex; The 5th lens are the concavo-convex negative focus lens of a slice; Six-element lens and the 7th lens are one group of balsaming lenss, six-element lens is that first of a slice is protruding positive focus lens, the 7th lens are that second of a slice is recessed negative focus lens, second of six-element lens is cemented surface with the 7th first on lens, radius-of-curvature equates, cemented surface can be recessed or protruding, uses the optics glue glued adhesion, glues together total focal power for negative; The 8th lens and the 9th lens are one group of balsaming lenss, the 8th lens are that first of a slice is protruding positive focus lens, the 9th lens are that second of a slice is protruding negative focus lens, first of second on the 8th lens and the 9th lens is cemented surface, radius-of-curvature equates, cemented surface is recessed or protruding, uses the optics glue glued adhesion, glues together total focal power for just.
5. two constituent element optical compensation zoom lens according to claim 4, it is characterized in that: the 4th lens and the 5th lens are directly near assembling; Be provided with a spacer ring in the middle of the balsaming lens of the 5th lens and the 6th, seven lens composition and separate assembling; Six, the balsaming lens of the balsaming lens of seven lens compositions and the 8th, nine lens composition is directly near assembling.
6. two constituent element optical compensation zoom lens according to claim 1, it is characterized in that: all lens surfaces all are coated with one deck anti-reflection film at least, do not comprise cemented surface, see through visible light and infrared light simultaneously, have infrared function, night down also can imaging the auxiliary of infrared lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200244479U CN203149184U (en) | 2012-01-17 | 2012-01-17 | Two-component optical compensation zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200244479U CN203149184U (en) | 2012-01-17 | 2012-01-17 | Two-component optical compensation zoom lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203149184U true CN203149184U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200244479U Expired - Fee Related CN203149184U (en) | 2012-01-17 | 2012-01-17 | Two-component optical compensation zoom lens |
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| Country | Link |
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| CN (1) | CN203149184U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717613A (en) * | 2016-04-14 | 2016-06-29 | 南京昂驰光电科技有限公司 | Front optical set for starlight-level road monitoring 50-mm zoom optical lens assembly |
| CN106154481A (en) * | 2016-08-26 | 2016-11-23 | 福建福光股份有限公司 | A kind of mould camera lens and assembly technology thereof |
-
2012
- 2012-01-17 CN CN2012200244479U patent/CN203149184U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717613A (en) * | 2016-04-14 | 2016-06-29 | 南京昂驰光电科技有限公司 | Front optical set for starlight-level road monitoring 50-mm zoom optical lens assembly |
| CN106154481A (en) * | 2016-08-26 | 2016-11-23 | 福建福光股份有限公司 | A kind of mould camera lens and assembly technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20170117 |