CN111722383A - Long-wave infrared double-view-field motorized zoom lens and assembling method thereof - Google Patents
Long-wave infrared double-view-field motorized zoom lens and assembling method thereof Download PDFInfo
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- CN111722383A CN111722383A CN202010705795.1A CN202010705795A CN111722383A CN 111722383 A CN111722383 A CN 111722383A CN 202010705795 A CN202010705795 A CN 202010705795A CN 111722383 A CN111722383 A CN 111722383A
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- 238000000034 method Methods 0.000 title claims description 5
- 230000003287 optical effect Effects 0.000 claims abstract description 25
- 238000003825 pressing Methods 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 8
- 230000005499 meniscus Effects 0.000 claims description 8
- 239000005387 chalcogenide glass Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract 2
- 238000003384 imaging method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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 long-wave infrared double-view-field motorized zoom lens comprises a lens barrel and an optical system arranged in the lens barrel, wherein the optical system comprises a positive crescent lens A, a double concave lens B, a double convex lens C, a negative crescent lens D and a negative crescent lens E which are sequentially arranged along the incident direction of light rays. The real form of adopting "+, -, +" newly, use five lenses on optical system design, the camera lens realizes two visual fields and zooms through second piece focusing lens, structurally only focuses on the group focusing, can realize quick focusing, fast switch over target visual field. Compared with the existing lens, the lens has the advantages of reduced lens quantity, simple structural design, easy assembly, greatly reduced lens cost and mass production.
Description
Technical Field
The invention relates to a long-wave infrared double-view-field motorized zoom lens.
Background
With the application of the infrared system in various fields of warning, ground air defense, forest fire prevention, guidance and the like, the infrared optical system has a complex use environment and variable climate, and the typical requirement can reach-40 ℃ to 80 ℃ to overcome large temperature change in use. Under the impact of larger temperature difference, due to the expansion or contraction of the lens material and mechanical parts and the increase or decrease of the refractive index of the lens material, the focal length of the optical system changes, the image plane shifts, the imaging quality deteriorates, and the like, which all affect the imaging quality of the infrared optical system. Accordingly, athermal designs of infrared optical systems are needed.
The infrared optical systems are largely classified into two types without heating: optical athermalization and electrokinetic athermalization. The optical athermalization does not introduce a motion system, has high reliability, does not need power supply, and can realize the athermalization of the optical system in a simple structural form. The long-wave infrared double-view-field motorized zoom lens has the advantages of simple structure, light weight, low cost and the like, but the controllable temperature range is small and cannot meet the requirements of clients, so that the long-wave infrared double-view-field motorized zoom lens uses electric athermalization to enable the optical system to keep good imaging quality in a large temperature range. The long-wave infrared double-view-field motorized zoom lens has two view fields of 75mm and 150mm, can realize large-view-field target search and small-view-field tracking, plays an irreplaceable role in use, and is simpler and more convenient to use compared with a continuous zooming optical system.
Disclosure of Invention
The invention aims to provide a long-wave infrared double-view-field motorized zoom lens.
The technical scheme of the invention is as follows: the long-wave infrared double-view-field motorized zoom lens comprises a lens barrel and an optical system arranged in the lens barrel, wherein the optical system comprises a positive crescent lens A, a double concave lens B, a double convex lens C, a negative crescent lens D and a negative crescent lens E which are sequentially arranged along the incident direction of light rays.
Further, the air interval adjustment range between the positive crescent lens A and the double concave lens B is 41.74-68.91 mm, the air interval adjustment range between the double concave lens B and the double convex lens C is 8.25-35.42 mm, the air interval between the double convex lens C and the negative crescent lens D is 21.05mm, and the air interval between the negative crescent lens D and the negative crescent lens E is 34.55 mm.
Furthermore, the materials used by the positive crescent lens A, the biconvex lens C, the negative crescent lens D and the negative crescent lens E are all long-wave single crystal germanium, and the material used by the biconcave lens B is chalcogenide glass.
Further, the rear surface of the biconcave lens B and the front surface of the biconvex lens C are aspheric surfaces.
Furthermore, the lens barrel comprises a main lens barrel and a rear lens barrel, an electric zooming component is arranged on the outer side of the main lens barrel, a zooming lens seat is arranged in the main lens barrel, and a flange plate is arranged at the rear end of the rear lens barrel.
Furthermore, the positive crescent lens A is arranged at the front part of the main lens cone, an A-piece pressing ring for fixing the positive crescent lens A on the main lens cone is arranged at the front side of the positive crescent lens A, the double-concave lens B is arranged in the zoom lens seat, a B-piece pressing ring for fixing the double-concave lens B in the zoom lens seat is arranged at the front side of the double-concave lens B, the biconvex lens C is arranged at the front part of the rear group lens barrel, a C-piece pressing ring for fixing the biconvex lens C on the rear group lens barrel is arranged at the front side of the biconvex lens C, the negative crescent lens D is arranged at the front part of the rear group lens barrel, a D-piece pressing ring for fixing the negative crescent lens D on the rear group lens barrel is arranged at the front side of the negative crescent lens D, the negative crescent lens E is arranged at the front part of the rear group lens barrel, and an E-piece pressing ring for fixing the negative crescent lens E on the rear group lens barrel is arranged on the front side of the negative crescent lens E.
Furthermore, the electric zoom assembly comprises a guide assembly and an electric assembly, the guide assembly comprises a guide sleeve sleeved outside the main lens barrel, the barrel wall of the main lens barrel is provided with at least one sliding groove, the guide sleeve is provided with at least one guide groove, the guide groove is internally provided with a guide nail, and the guide nail penetrates through the sliding groove and is fixed on the zoom lens base.
Further, the electric component comprises a motor frame arranged on the outer side of the main lens cone, a motor and a potentiometer are arranged on the motor frame, a motor gear is arranged on an output shaft of the motor, a potentiometer gear is arranged on an input shaft of the potentiometer, a guide sleeve gear is arranged on the outer side of the guide sleeve, and the motor gear is respectively meshed with the potentiometer gear and the guide sleeve gear.
Further, switch frames are arranged on two sides of the motor frame, a microswitch is arranged on each switch frame, and a circuit board support is arranged on the side wall of the rear group lens barrel.
An assembling method of a long-wave infrared double-view-field motorized zoom lens comprises the following steps:
1) mounting the guide sleeve on the main lens cone;
2) mounting a motor and a potentiometer on a motor frame;
3) mounting the biconcave lens B on a zoom lens base, and fixing the biconcave lens B by using a B-piece pressing ring;
4) the guide nail penetrates through the guide groove and the sliding groove to be fixed on the zoom lens seat;
5) mounting the negative crescent lens E on the rear group lens barrel, fixing the negative crescent lens E by using an E-piece pressing ring, and mounting a flange plate;
6) mounting the negative crescent lens D on the rear group lens cone and fixing the negative crescent lens D by using a D-piece pressing ring, and mounting the biconvex lens C on the rear group lens cone and fixing the biconvex lens C by using a C-piece pressing ring;
7) mounting the rear group lens barrel on the rear part of the main lens barrel;
8) the orthodontic lens A is mounted on the front part of the main lens cone and fixed by an A-piece pressing ring.
Compared with the prior art, the invention has the following advantages: the invention adopts the structural form of +/-and uses five lenses on the design of an optical system, the lens realizes double-field zooming through the second focusing lens, only the focusing group focuses on the structure, and the fast focusing can be realized and the target field can be fast switched. Compared with the existing lens, the lens has the advantages of reduced lens quantity, simple structural design, easy assembly, greatly reduced lens cost and mass production.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of the external structure of the present invention;
FIG. 3 is a schematic diagram of an optical system of the present invention;
in the figure: 1-A sheet pressing ring, 2-main lens cone, 3-zoom lens base, 4-B sheet pressing ring, 5-M2 high-precision steel ball, 6-guide sleeve, 7-C sheet pressing ring, 8-rear group lens cone, 9-D sheet pressing ring, 10-E sheet pressing ring, 11-guide nail, 12-shaft sleeve, 13-gasket, 14-flange plate, 15-positive crescent lens A, 16-biconcave lens B, 17-biconvex lens C, 18-crescent lens D, 19-negative crescent lens E, 20-guide sleeve retainer ring, 21-microswitch, 22-stop nail, 23-guide sleeve gear, 24-motor frame, 25-motor gear, 26-potentiometer gear, 27-potentiometer, 28-motor, 29-circuit board support and 30-switch frame.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to fig. 1-3.
In a preferred embodiment of the present invention: a long-wave infrared double-view-field motorized zoom lens comprises a lens barrel and an optical system arranged in the lens barrel, wherein the optical system comprises a positive crescent lens A15, a double concave lens B16, a double convex lens C17, a negative crescent lens D18 and a negative crescent lens E19 which are sequentially arranged along the incident direction of light rays.
In the present embodiment, the air space adjustment range between the positive meniscus lens a and the double concave lens B is 41.74 to 68.91mm, the air space adjustment range between the double concave lens B and the double convex lens C is 8.25 to 35.42mm, the air space between the double convex lens C and the negative meniscus lens D is 21.05mm, and the air space between the negative meniscus lens D and the negative meniscus lens E is 34.55 mm.
In this embodiment, the materials used for the positive crescent lens a, the biconvex lens C, the negative crescent lens D and the negative crescent lens E are all long-wave single crystal germanium, and the material used for the biconcave lens B is chalcogenide glass.
In this embodiment, the rear surface of the biconcave lens B and the front surface of the biconvex lens C are aspheric surfaces, and the aspheric surfaces satisfy the following expression:
wherein Z is the distance rise from the vertex of the aspheric surface when the aspheric surface is at the position with the height of r along the optical axis direction; c =1/R, R representing the paraxial radius of curvature of the mirror surface; k is the cone coefficient; a. the0、A1、A2、A3Are high-order aspheric coefficients.
In this embodiment, the lens barrel includes a main lens barrel 2 and a rear lens barrel 8, an electric zoom assembly is disposed outside the main lens barrel, a zoom lens base 3 is disposed in the main lens barrel, the zoom lens base can move back and forth in the main lens barrel under the driving of the electric zoom assembly, and a flange 14 is disposed at the rear end of the rear lens barrel.
In the embodiment, the orthodontic lens A is arranged at the front part of the main lens barrel, an A-piece pressing ring 1 for fixing the orthodontic lens A on the main lens barrel is arranged at the front side of the orthodontic lens A, the double-concave lens B is arranged in the zoom lens seat, a B-piece pressing ring 4 for fixing the double-concave lens B in the zoom lens seat is arranged at the front side of the double-concave lens B, the biconvex lens C is arranged at the front part of the rear group lens barrel, a C-piece pressing ring 7 for fixing the biconvex lens C on the rear group lens barrel is arranged at the front side of the biconvex lens C, the negative crescent lens D is arranged at the front part of the rear group lens barrel, a D-piece pressing ring 9 for fixing the negative crescent lens D on the rear group lens barrel is arranged at the front side of the negative crescent lens D, the negative crescent lens E is arranged at the front part of the rear group lens barrel, and an E-piece pressing ring 10 for fixing the negative crescent lens E on the rear group lens barrel is arranged on the front side of the negative crescent lens E.
In this embodiment, the electric zoom assembly includes a guide assembly and an electric assembly, the guide assembly includes a guide sleeve 6 sleeved outside the main lens barrel, the front end and the rear end of the guide sleeve are both provided with a plurality of M2 high-precision steel balls 5 for reducing friction, the rear end of the guide sleeve is provided with a guide sleeve retaining ring 20, the barrel wall of the main lens barrel is provided with at least one sliding groove, the guide sleeve is provided with at least one guide groove, the tail end of the guide groove is provided with a retaining nail 22, the guide groove is provided with a guide nail 11, the guide nail is arranged in the shaft sleeve 12 and provided with a gasket 13, the guide nail penetrates through the sliding groove and is fixed on the zoom lens base, and by rotating the guide sleeve, the guide nail can be driven to move back and forth in the sliding groove and back, and the zoom.
In this embodiment, the electric component includes a motor frame 24 disposed outside the main lens barrel, the motor frame is provided with a motor 28 and a potentiometer 27, an output shaft of the motor is provided with a motor gear 25, an input shaft of the potentiometer is provided with a potentiometer gear 26, a guide sleeve gear 23 is disposed outside the guide sleeve, the motor gear is respectively engaged with the potentiometer gear and the guide sleeve gear, the motor drives the potentiometer gear and the guide sleeve gear to rotate, so that the guide sleeve rotates to drive the zoom lens holder to move back and forth, thereby realizing the switching of the focal length and the view field of the lens, and outputting the rotation angle of the guide sleeve through the potentiometer to realize automatic control.
In this embodiment, the two sides of the motor frame are provided with switch frames 30, the switch frames are provided with micro switches 21, when the micro switches touch the stop nails, the motor is turned off, and the side wall of the rear group lens barrel is provided with a circuit board support 29.
An assembling method of a long-wave infrared double-view-field motorized zoom lens comprises the following steps:
1) mounting the guide sleeve on the main lens cone;
2) mounting a motor and a potentiometer on a motor frame;
3) mounting the biconcave lens B on a zoom lens base, and fixing the biconcave lens B by using a B-piece pressing ring;
4) the guide nail penetrates through the guide groove and the sliding groove to be fixed on the zoom lens seat;
5) mounting the negative crescent lens E on the rear group lens barrel, fixing the negative crescent lens E by using an E-piece pressing ring, and mounting a flange plate;
6) mounting the negative crescent lens D on the rear group lens cone and fixing the negative crescent lens D by using a D-piece pressing ring, and mounting the biconvex lens C on the rear group lens cone and fixing the biconvex lens C by using a C-piece pressing ring;
7) mounting the rear group lens barrel on the rear part of the main lens barrel;
8) the orthodontic lens A is mounted on the front part of the main lens cone and fixed by an A-piece pressing ring.
In this embodiment, the specific performance parameters of the optical structure are: (1) the working wave band is as follows: 8-12 μm; (2) focal length: f' =75/150 mm; (3) the lens is suitable for a 640 x 512, 17 mu m long-wave infrared non-refrigeration type detector; (4) the field angle: 8.28 ° × 6.64 ° -4.15 ° × 3.32 (5) relative pore diameter D/f': F1.15/F1.3; (6) the total length of the optical system is 189.2 mm.
TABLE 1 optical element parameter table
Note: in table 1, the radius of curvature refers to the radius of curvature of each surface of the lens, and the air gap refers to the distance between two adjacent lenses, for example: s1, S2 are the surfaces of the positive crescent lens a away from and adjacent to the biconcave lens B, respectively.
In this embodiment, the lens can be matched with a long-wave infrared uncooled 640 x 51217 um detector, and is used for various environments such as airborne environment, terrestrial environment and the like to perform tasks such as temperature measurement and security monitoring.
It will be apparent to those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and that various changes, modifications, substitutions and alterations can be made in the long wave infrared dual field of view motorized zoom lens without any inventive step, without departing from the spirit and scope of the present invention.
Claims (10)
1. The long-wave infrared double-view-field motorized zoom lens comprises a lens barrel and an optical system arranged in the lens barrel, and is characterized in that the optical system comprises a positive crescent lens A, a double concave lens B, a double convex lens C, a negative crescent lens D and a negative crescent lens E which are sequentially arranged along the light incidence direction.
2. The long-wave infrared dual-field-of-view motorized zoom lens according to claim 1, wherein an air space adjustment range between the positive meniscus lens a and the biconcave lens B is 41.74 to 68.91mm, an air space adjustment range between the biconcave lens B and the biconvex lens C is 8.25 to 35.42mm, an air space between the biconvex lens C and the negative meniscus lens D is 21.05mm, and an air space between the negative meniscus lens D and the negative meniscus lens E is 34.55 mm.
3. The long-wave infrared double-field-of-view motorized zoom lens according to claim 1, wherein the materials used for the positive crescent lens A, the biconvex lens C, the negative crescent lens D and the negative crescent lens E are all long-wave single-crystal germanium, and the material used for the biconcave lens B is chalcogenide glass.
4. The long-wave infrared dual-field of view motorized zoom lens of claim 1, wherein said biconcave lens B rear surface and biconvex lens C front surface are aspheric.
5. The long-wave infrared dual-field-of-view motorized zoom lens according to claim 1, wherein the lens barrel comprises a main lens barrel and a rear lens group, the outer side of the main lens barrel is provided with the motorized zoom assembly, the main lens barrel is provided with the zoom lens base, and the rear end of the rear lens group is provided with the flange.
6. The long-wave infrared dual-field-of-view motorized zoom lens of claim 5, the orthodontic lens A is arranged at the front part of the main lens cone, the front side of the orthodontic lens A is provided with an A-piece pressing ring for fixing the orthodontic lens A on the main lens cone, the double-concave lens B is arranged in the zoom lens seat, a B-piece pressing ring for fixing the double-concave lens B in the zoom lens seat is arranged at the front side of the double-concave lens B, the biconvex lens C is arranged at the front part of the rear group lens barrel, a C-piece pressing ring for fixing the biconvex lens C on the rear group lens barrel is arranged at the front side of the biconvex lens C, the negative crescent lens D is arranged at the front part of the rear group lens barrel, a D-piece pressing ring for fixing the negative crescent lens D on the rear group lens barrel is arranged at the front side of the negative crescent lens D, the negative crescent lens E is arranged at the front part of the rear group lens barrel, and an E-piece pressing ring for fixing the negative crescent lens E on the rear group lens barrel is arranged on the front side of the negative crescent lens E.
7. The long-wave infrared dual-field-of-view motorized zoom lens according to claim 5, wherein the motorized zoom assembly comprises a guiding assembly and a motorized assembly, the guiding assembly comprises a guide sleeve sleeved outside the main lens barrel, the barrel wall of the main lens barrel is provided with at least one sliding groove, the guide sleeve is provided with at least one guide groove, a guide pin is arranged in the guide groove, and the guide pin penetrates through the sliding groove and is fixed on the zoom lens base.
8. The long-wave infrared dual-field-of-view motorized zoom lens according to claim 7, wherein the motorized assembly comprises a motor frame disposed outside the main barrel, the motor frame is provided with a motor and a potentiometer, an output shaft of the motor is provided with a motor gear, an input shaft of the potentiometer is provided with a potentiometer gear, a guide sleeve gear is disposed outside the guide sleeve, and the motor gear is respectively engaged with the potentiometer gear and the guide sleeve gear.
9. The long-wave infrared dual-field of view motorized zoom lens of claim 8, wherein switch brackets are provided on both sides of said motor bracket, said switch brackets are provided with micro switches, and said rear group barrel side walls are provided with circuit board brackets.
10. The method of assembling a long wave infrared dual field of view motorized zoom lens of claim 8, comprising the steps of:
1) mounting the guide sleeve on the main lens cone;
2) mounting a motor and a potentiometer on a motor frame;
3) mounting the biconcave lens B on a zoom lens base, and fixing the biconcave lens B by using a B-piece pressing ring;
4) the guide nail penetrates through the guide groove and the sliding groove to be fixed on the zoom lens seat;
5) mounting the negative crescent lens E on the rear group lens barrel, fixing the negative crescent lens E by using an E-piece pressing ring, and mounting a flange plate;
6) mounting the negative crescent lens D on the rear group lens cone and fixing the negative crescent lens D by using a D-piece pressing ring, and mounting the biconvex lens C on the rear group lens cone and fixing the biconvex lens C by using a C-piece pressing ring;
7) mounting the rear group lens barrel on the rear part of the main lens barrel;
8) the orthodontic lens A is mounted on the front part of the main lens cone and fixed by an A-piece pressing ring.
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| CN202010705795.1A CN111722383A (en) | 2020-07-21 | 2020-07-21 | Long-wave infrared double-view-field motorized zoom lens and assembling method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114460729A (en) * | 2022-01-25 | 2022-05-10 | 凯迈（洛阳）测控有限公司 | Large-relative-aperture large-target-surface uncooled infrared continuous zooming optical system |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5202992A (en) * | 1990-04-27 | 1993-04-13 | Konica Corporation | Zoom lens apparatus |
| JP2001083413A (en) * | 1999-09-13 | 2001-03-30 | Nitto Kogaku Kk | Infrared lens |
| CN102411193A (en) * | 2011-11-22 | 2012-04-11 | 河南中光学集团有限公司 | Continuous zooming CCD (Charge Coupled Device) television tracking lens optical system |
| US20130279019A1 (en) * | 2012-04-24 | 2013-10-24 | Tsan-Haw Lee | Zooming lens |
| US20140085734A1 (en) * | 2011-06-21 | 2014-03-27 | Fujifilm Corporation | Zoom lens and imaging apparatus |
| JP2014145871A (en) * | 2013-01-29 | 2014-08-14 | Canon Inc | Imaging optical system using diffraction optical element |
| CN203965714U (en) * | 2014-06-26 | 2014-11-26 | 北京蓝思泰克科技有限公司 | A kind of long-focus long-wave infrared continuous zoom lens |
| CN205263390U (en) * | 2015-12-08 | 2016-05-25 | 三河市蓝思泰克光电科技有限公司 | Big light ring continuous -zoom lens of general type of long wave infrared |
| CN106154522A (en) * | 2016-08-22 | 2016-11-23 | 福建福光股份有限公司 | LONG WAVE INFRARED big target surface double-view field varifocal lens and Zooming method thereof |
| CN109358418A (en) * | 2018-12-04 | 2019-02-19 | 福建福光股份有限公司 | 8 times of zoom lens of formula of turning back medium-wave infrared |
| CN109633878A (en) * | 2019-01-24 | 2019-04-16 | 福建福光天瞳光学有限公司 | A kind of lightweight continuous magnification lens design and its assembly method |
| CN110058389A (en) * | 2019-05-30 | 2019-07-26 | 浙江舜宇光学有限公司 | Combined type zoom is double to take the photograph camera lens |
| CN212675266U (en) * | 2020-07-21 | 2021-03-09 | 福建福光天瞳光学有限公司 | Long-wave infrared double-view-field motorized zoom lens |
-
2020
- 2020-07-21 CN CN202010705795.1A patent/CN111722383A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5202992A (en) * | 1990-04-27 | 1993-04-13 | Konica Corporation | Zoom lens apparatus |
| JP2001083413A (en) * | 1999-09-13 | 2001-03-30 | Nitto Kogaku Kk | Infrared lens |
| US20140085734A1 (en) * | 2011-06-21 | 2014-03-27 | Fujifilm Corporation | Zoom lens and imaging apparatus |
| CN102411193A (en) * | 2011-11-22 | 2012-04-11 | 河南中光学集团有限公司 | Continuous zooming CCD (Charge Coupled Device) television tracking lens optical system |
| US20130279019A1 (en) * | 2012-04-24 | 2013-10-24 | Tsan-Haw Lee | Zooming lens |
| JP2014145871A (en) * | 2013-01-29 | 2014-08-14 | Canon Inc | Imaging optical system using diffraction optical element |
| CN203965714U (en) * | 2014-06-26 | 2014-11-26 | 北京蓝思泰克科技有限公司 | A kind of long-focus long-wave infrared continuous zoom lens |
| CN205263390U (en) * | 2015-12-08 | 2016-05-25 | 三河市蓝思泰克光电科技有限公司 | Big light ring continuous -zoom lens of general type of long wave infrared |
| CN106154522A (en) * | 2016-08-22 | 2016-11-23 | 福建福光股份有限公司 | LONG WAVE INFRARED big target surface double-view field varifocal lens and Zooming method thereof |
| CN109358418A (en) * | 2018-12-04 | 2019-02-19 | 福建福光股份有限公司 | 8 times of zoom lens of formula of turning back medium-wave infrared |
| CN109633878A (en) * | 2019-01-24 | 2019-04-16 | 福建福光天瞳光学有限公司 | A kind of lightweight continuous magnification lens design and its assembly method |
| CN110058389A (en) * | 2019-05-30 | 2019-07-26 | 浙江舜宇光学有限公司 | Combined type zoom is double to take the photograph camera lens |
| CN212675266U (en) * | 2020-07-21 | 2021-03-09 | 福建福光天瞳光学有限公司 | Long-wave infrared double-view-field motorized zoom lens |
Non-Patent Citations (1)
| Title |
|---|
| 王巍 等: "红外变焦光学***设计", 《光学仪器》, vol. 34, no. 3, 15 March 2012 (2012-03-15), pages 33 - 37 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114460729A (en) * | 2022-01-25 | 2022-05-10 | 凯迈（洛阳）测控有限公司 | Large-relative-aperture large-target-surface uncooled infrared continuous zooming optical system |
| CN114460729B (en) * | 2022-01-25 | 2023-07-21 | 凯迈（洛阳）测控有限公司 | Large-relative-aperture large-target-surface uncooled infrared continuous zooming optical system |
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