CN109633878B - Assembling method of lightweight continuous zoom lens - Google Patents
Assembling method of lightweight continuous zoom lens Download PDFInfo
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- CN109633878B CN109633878B CN201910069369.0A CN201910069369A CN109633878B CN 109633878 B CN109633878 B CN 109633878B CN 201910069369 A CN201910069369 A CN 201910069369A CN 109633878 B CN109633878 B CN 109633878B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 34
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 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
- 239000000463 material Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000002834 transmittance Methods 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011835 investigation 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
- 238000012545 processing Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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 +-+
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
Abstract
The invention provides an appearance design of a lightweight continuous zoom lens and an assembly method thereof. The invention has the advantages of simple structure, reasonable design, compact structure, convenient carrying, high light transmittance, low manufacturing cost and practicability.
Description
Technical Field
The invention relates to an assembly method of a lightweight continuous zoom lens.
Background
The uncooled infrared products are widely applied at present, and are widely used in various fields such as monitoring, investigation, forest fire prevention and the like due to all-weather day and night observation capability. Compared with a refrigerating infrared product, the uncooled infrared thermal imager does not need to refrigerate the detector, is convenient to use, has wide application range and low price, and is more suitable for civil markets. The continuous zooming uncooled infrared lens is an important component of the thermal infrared imager, and can clearly image far and near targets, so that the optimal picture and view field are provided for a user, and the continuous zooming uncooled infrared lens is increasingly applied to security protection and forest fire prevention.
The existing continuous zooming infrared lens has the following defects although having a continuous zooming function: 1. the structure is complex, the weight is heavy, and the volume is large; 2. the focus alignment is greatly affected by temperature, and the regional applicability is poor; 3. the stability and reliability of the zoom movement mechanism are poor. The common continuous zooming infrared lens has poor matching precision and large movement resistance due to a large zooming mechanism and low processing precision, and the stability and reliability of an optical axis in the zooming process are poor.
Disclosure of Invention
The invention improves the problems, namely, the technical problem to be solved by the invention is to improve a lightweight continuous zoom lens and an assembly method thereof, and the lightweight continuous zoom lens has simple structure and wide application range.
The specific embodiments of the invention are: the utility model provides a lightweight continuous zoom lens, includes the lens body, positive lens A, negative lens B, positive lens C, negative lens D and positive lens E have been set gradually along the light incident direction in the lens body.
Further, the lens body comprises an A lens seat, the positive lens A is arranged on the A lens seat, the rear end of the A lens seat is connected with a main lens barrel in a threaded manner, and a sealing ring for water resistance is arranged between the A lens seat and the main lens barrel.
Furthermore, the inside of the main lens barrel is provided with a zoom sliding frame, the zoom sliding frame is provided with a negative lens B, the zoom sliding frame is also sleeved with a zoom cam, the zoom cam is sleeved with a compensation sliding frame, and the compensation sliding frame is connected with the main lens barrel.
Furthermore, the compensation sliding frame and the zoom sliding frame are both provided with zoom guide nails, a pair of rollers is sleeved on the zoom guide nails, the zoom cam is provided with a sliding groove in sliding fit with one roller, and the main lens barrel is provided with a moving groove in sliding fit with the other roller.
Further, the zoom motor is fixedly connected to the main lens barrel, and a zoom motor gear meshed with the zoom cam is coaxially and fixedly connected to an output shaft of the zoom motor.
Further, the lens body comprises a rear group lens barrel positioned at the rear end, a negative lens D is fixedly connected to the rear group lens barrel, an E-piece lens seat is arranged on the inner side of the rear group lens barrel, a positive lens E is fixedly connected to the E-piece lens seat, a focusing cam is sleeved on the E-piece lens seat, a focusing motor for driving the focusing cam to rotate and driving the positive lens E to move is fixedly connected to the rear group lens barrel, and a focusing motor gear meshed with the focusing cam is coaxially and fixedly connected to an output shaft of the focusing motor.
Furthermore, the positive lens A, the negative lens B, the positive lens C, the negative lens D and the positive lens E are all aspheric mirrors, and are made of monocrystalline germanium materials.
Further, the positive lens C is fixedly arranged on the compensation carriage through a C-piece pressing ring, the negative lens B is fixedly arranged on the zoom carriage through a B-piece pressing ring, the positive lens A is fixedly arranged on the A-piece lens seat through an A-piece pressing ring 1, the negative lens D is fixedly arranged on the rear group lens cone through a D-piece pressing ring, and the positive lens E is fixedly arranged on the E-piece lens seat through an E-piece pressing ring.
Furthermore, the variable-magnification cam is also provided with a wedge groove, steel balls are filled in the wedge groove, and the variable-magnification cam pressing ring is also arranged on the variable-magnification cam.
Further, an assembling method using a lightweight continuous zoom lens as set forth in claim 9, comprising the steps of: (1) the lens holder A is connected with the main lens barrel through threads; (2) The positive lens A piece is arranged on the A piece lens seat and is fixed through the A piece pressing ring; (3) installing a sealing ring between the lens A base and the main lens barrel; (4) The main lens barrel is connected with the zoom sliding frame through a zoom guide pin, the zoom sliding frame is connected with the zoom cam through a zoom guide pin, steel balls are filled in wedge grooves of the zoom cam, and the negative lens B is arranged on the zoom sliding frame and fixed through a B-piece pressing ring; (5) The main lens barrel is connected with the compensation sliding frame through a zoom guide pin, the compensation sliding frame is also connected with the zoom cam through the zoom guide pin, and the positive lens C is arranged on the compensation sliding frame and is fixed through a C-piece pressing ring; (6) The rear end of the compensation sliding frame is provided with a rear group lens barrel, and a negative lens D is fixed on the rear group lens barrel and is fixed through a D-piece pressing ring; (7) An E-piece lens seat is arranged on the inner side of the rear group lens barrel, a focusing cam is arranged on the E-piece lens seat, and a positive lens E is fixed on the E-piece lens seat and is fixed through an E-piece pressing ring; (8) The focusing motor and the zooming motor are fixedly arranged on the main lens barrel, a focusing motor gear meshed with the focusing cam is arranged on an output shaft of the focusing motor, and a zooming motor gear meshed with the zooming motor is coaxially arranged on the output shaft of the zooming motor.
Compared with the prior art, the invention has the following beneficial effects: the device has reasonable design, simple structure, wide application range, compact structure, short lens structure length, convenient carrying and high light transmittance, can effectively record and monitor live condition by lengthening the back focus in optical design, has low manufacturing cost and is suitable for large-scale production.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: the lens comprises a 1-A lens pressing ring, a 2-A lens seat, a 3-sealing ring, a 4-main lens barrel, a 5-zooming cam, a 6-compensation carriage, a 7-rear lens barrel, an 8-focusing cam, a 9-E lens seat, a 10-E lens pressing ring, an 11-focusing cam retainer ring, a 12-connecting seat, a 13-positive lens E, a 14-negative lens D, a 15-zooming cam pressing ring, a 16-steel ball, a 17-D lens pressing ring, a 18-C lens pressing ring, a 19-positive lens C, a 20-zooming carriage, a 21-B lens pressing ring, a 22-negative lens B, a 23-positive lens A, a 24-zooming motor gear, a 25-focusing motor gear, a 26-zooming motor and a 27-focusing motor.
Description of the embodiments
The invention will be described in further detail with reference to the drawings and the detailed description.
Examples: as shown in fig. 1-2, in the present embodiment, a lightweight continuous zoom lens is provided, which includes a lens body, in which a positive lens a23, a negative lens B22, a positive lens C19, a negative lens D14, and a positive lens E13 are sequentially disposed along a light incident direction.
In this embodiment, the lens body includes an a-lens seat 2, the positive lens a23 is mounted on the a-lens seat 2, a main lens barrel 4 is screwed at the rear end of the a-lens seat 2, and a sealing ring 3 for waterproofing is installed between the a-lens seat 2 and the main lens barrel 4; in addition, the A lens seat and the main lens barrel are connected through threads, and the air distance between the A lens seat and the main lens barrel is rotated through the threads.
In this embodiment, a zoom carriage 20 is disposed inside the main lens barrel 4, a negative lens B22 is mounted on the zoom carriage 20, a zoom cam 5 is further sleeved on the zoom carriage 20, a compensation carriage 6 is sleeved on the zoom cam 5, and the compensation carriage 6 is connected with the main lens barrel 4.
In this embodiment, the zoom carriage 20 and the compensation carriage 6 are both provided with zoom guide nails, a pair of rollers is sleeved on the zoom guide nails, the zoom cam has a sliding groove in sliding fit with one of the rollers, and the main lens barrel has a moving groove in sliding fit with the other roller.
In this embodiment, the zoom motor 26 is fixedly connected to the main lens barrel 4, and a zoom motor gear 24 engaged with the zoom cam 5 is coaxially and fixedly connected to an output shaft of the zoom motor 26.
In this embodiment, the camera lens body is including the rear group section of thick bamboo 7 that is located the rear end, fixedly connected with negative lens D14 on the rear group section of thick bamboo 7, the rear group section of thick bamboo 7 inboard is provided with E piece mirror seat 9, positive lens E13 fixed connection is on E piece mirror seat 9, the cover is equipped with focusing cam 8 on the E piece mirror seat 9, fixedly connected with drives the focusing motor that focusing cam 8 rotatory drive positive lens E13 moved on the rear group section of thick bamboo 7, coaxial fixedly connected with and focusing cam intermeshing's focusing motor gear on the focusing motor output shaft.
In this embodiment, the positive lens a23, the negative lens B22, the positive lens C19, the negative lens D14, and the positive lens E13 are all aspherical mirrors, and are made of monocrystalline germanium.
In this embodiment, the zoom cam 5 further has a wedge groove, the wedge groove is filled with steel balls 16, and the zoom cam 5 is further provided with a zoom cam pressing ring 15 for fixing the zoom cam.
In this embodiment, a connecting seat 12 is provided at the rear end of the focusing cam 8, and a focusing cam retainer ring 11 is provided between the angle adjusting cam 8 and the connecting seat 12.
In this embodiment, the positive lens C19 is fixedly mounted on the compensation carriage 6 through the C-plate press ring 18, the negative lens B22 is fixedly mounted on the magnification varying carriage 20 through the B-plate press ring 21, the positive lens a23 is fixedly mounted on the a-plate lens holder 2 through the a-plate press ring 1, the negative lens D14 is fixedly mounted on the rear group lens barrel 7 through the D-plate press ring 17, and the positive lens E13 is fixedly mounted on the E-plate lens holder 9 through the E-plate press ring 10.
In this embodiment, the optical structure composed of the positive lens a, the negative lens B, the positive lens C, the negative lens D, and the positive lens E described above achieves the following optical indexes:
working wave band: 8 μm to 12 μm;
focal length: f' =25-75 mm;
the detector comprises: long wave infrared uncooled 1024×768, 14 μm;
angle of view: 25.04 degrees by 33.84 degrees to 8.16 degrees by 10.82 degrees;
relative pore diameter D/f': 1.0-1.2.
In this embodiment, specific parameters of the positive lens a, the negative lens B, the positive lens C, the negative lens D, and the positive lens E are as follows:
in the above table, S1 is a lens surface parameter seen from left to right in the drawing of the present embodiment, and S2 is a lens surface parameter seen from right to left.
In the embodiment, during assembly, an A lens seat and a main lens barrel are connected through threads, a positive lens A is installed on the A lens seat and fixed through an A lens pressing ring, a sealing ring is installed between the A lens seat and the main lens barrel, the main lens barrel is connected with a zoom sliding frame through a zoom guide nail, the zoom sliding frame is connected with a zoom cam through the zoom guide nail, steel balls are filled in wedge grooves of the zoom cam, a negative lens B is installed on the zoom sliding frame and fixed through a B lens pressing ring, the main lens barrel is connected with a compensation sliding frame through the zoom guide nail, the compensation sliding frame is also connected with a zoom cam through the zoom guide nail, a positive lens C is installed on the compensation sliding frame and fixed through a C lens pressing ring, a rear group lens barrel is installed at the rear end of the compensation sliding frame, a negative lens D is fixed on a focusing rear group lens barrel and fixed through a D lens pressing ring, an E lens seat is installed on the inner side of the rear group lens barrel, a positive lens E is fixed on the E lens seat and fixed through an E lens pressing ring, a motor and a motor output shaft of the motor is fixedly installed on a zoom gear coaxially meshed with the zoom cam, and the positive lens E lens is installed on the zoom lens barrel.
When the zoom lens is used, the negative lens B and the positive lens C are driven and adjusted to move by the zoom motor, so that zooming is completed; meanwhile, the focusing motor is driven to drive the positive lens E to move, and focusing is completed. The invention has the advantages of simple structure, reasonable design, compact structure, short structural length of the lens, convenient carrying and high light transmittance, can effectively record and monitor live condition by lengthening the back focus in the optical design, has low manufacturing cost and is suitable for large-scale production.
Any of the above-described embodiments of the present invention disclosed herein, unless otherwise stated, if they disclose a numerical range, then the disclosed numerical range is the preferred numerical range, as will be appreciated by those of skill in the art: the preferred numerical ranges are merely those of the many possible numerical values where technical effects are more pronounced or representative. Since the numerical values are more and cannot be exhausted, only a part of the numerical values are disclosed to illustrate the technical scheme of the invention, and the numerical values listed above should not limit the protection scope of the invention.
Meanwhile, if the above invention discloses or relates to parts or structural members fixedly connected with each other, the fixed connection may be understood as follows unless otherwise stated: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).
In addition, terms used in any of the above-described aspects of the present disclosure to express positional relationship or shape have meanings including a state or shape similar to, similar to or approaching thereto unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present invention and are not limiting; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (1)
1. The assembly method of the lightweight continuous zoom lens is characterized in that the lightweight continuous zoom lens comprises a lens body, wherein five lenses are arranged in the lens body, and the five lenses are a positive lens A, a negative lens B, a positive lens C, a negative lens D and a positive lens E which are sequentially arranged along the incident direction of light rays;
the lens body comprises an A lens seat, the positive lens A is arranged on the A lens seat, the rear end of the A lens seat is in threaded connection with a main lens barrel, and a sealing ring for water resistance is arranged between the A lens seat and the main lens barrel;
the zoom lens is characterized in that a zoom sliding frame is arranged on the inner side of the main lens barrel, a negative lens B is arranged on the zoom sliding frame, a zoom cam is sleeved on the zoom sliding frame, a compensation sliding frame is sleeved on the zoom cam, and the compensation sliding frame is connected with the main lens barrel;
the compensating sliding frame and the zooming sliding frame are respectively provided with a zooming guide nail, a pair of rollers are sleeved on the zooming guide nails, the zooming cam is provided with a sliding groove in sliding fit with one of the rollers, and the main lens barrel is provided with a moving groove in sliding fit with the other roller;
the zoom motor is fixedly connected to the main lens cone, and a zoom motor gear meshed with the zoom cam is coaxially and fixedly connected to the output shaft of the zoom motor;
the lens body comprises a rear group lens barrel positioned at the rear end, a negative lens D is fixedly connected to the rear group lens barrel, an E-piece lens seat is arranged on the inner side of the rear group lens barrel, a positive lens E is fixedly connected to the E-piece lens seat, a focusing cam is sleeved on the E-piece lens seat, a focusing motor for driving the focusing cam to rotate and driving the positive lens E to move is fixedly connected to the rear group lens barrel, and a focusing motor gear meshed with the focusing cam is coaxially and fixedly connected to an output shaft of the focusing motor;
the positive lens A, the negative lens B, the positive lens C, the negative lens D and the positive lens E are all aspheric mirrors, and are made of monocrystalline germanium materials;
the variable-magnification cam is also provided with a wedge groove, steel balls are filled in the wedge groove, and the variable-magnification cam is also provided with a variable-magnification cam pressing ring;
the air space between the positive lens A and the negative lens B is 24.2mm, the air space between the negative lens B and the positive lens C is 5.63mm, the air space between the positive lens C and the negative lens D is 28.54mm, and the air space between the negative lens D and the positive lens E is 32.2mm;
the positive lens C is fixedly arranged on the compensation sliding frame through a C-piece pressing ring, the negative lens B is fixedly arranged on the zoom sliding frame through a B-piece pressing ring, the positive lens A is fixedly arranged on the A-piece lens seat through an A-piece pressing ring, the negative lens D is fixedly arranged on the rear group lens cone through a D-piece pressing ring, and the positive lens E is fixedly arranged on the E-piece lens seat through an E-piece pressing ring;
the optical structure composed of the positive lens A, the negative lens B, the positive lens C, the negative lens D and the positive lens E achieves the following optical indexes: working wave band: 8 μm to 12 μm; focal length: f' =25-75 mm; the detector comprises: long wave infrared uncooled 1024×768, 14 μm; angle of view: 25.04 degrees by 33.84 degrees to 8.16 degrees by 10.82 degrees; relative pore diameter D/f': 1.0-1.2;
the assembling method of the lightweight continuous zoom lens comprises the following steps: (1) the lens holder A is connected with the main lens barrel through threads; (2) The positive lens A is arranged on the lens seat A and is fixed through the lens pressing ring A; (3) installing a sealing ring between the lens A base and the main lens barrel; (4) The main lens barrel is connected with the zoom sliding frame through a zoom guide pin, the zoom sliding frame is connected with the zoom cam through a zoom guide pin, steel balls are filled in wedge grooves of the zoom cam, and the negative lens B is arranged on the zoom sliding frame and fixed through a B-piece pressing ring; (5) The main lens barrel is connected with the compensation sliding frame through a zoom guide pin, the compensation sliding frame is also connected with the zoom cam through the zoom guide pin, and the positive lens C is arranged on the compensation sliding frame and is fixed through a C-piece pressing ring; (6) The rear end of the compensation sliding frame is provided with a rear group lens barrel, and a negative lens D is fixed on the rear group lens barrel and is fixed through a D-piece pressing ring; (7) An E-piece lens seat is arranged on the inner side of the rear group lens barrel, a focusing cam is arranged on the E-piece lens seat, and a positive lens E is fixed on the E-piece lens seat and is fixed through an E-piece pressing ring; (8) The focusing motor and the zooming motor are fixedly arranged on the main lens barrel, a focusing motor gear meshed with the focusing cam is arranged on an output shaft of the focusing motor, and a zooming motor gear meshed with the zooming motor is coaxially arranged on an output shaft of the zooming motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069369.0A CN109633878B (en) | 2019-01-24 | 2019-01-24 | Assembling method of lightweight continuous zoom lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069369.0A CN109633878B (en) | 2019-01-24 | 2019-01-24 | Assembling method of lightweight continuous zoom lens |
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| Publication Number | Publication Date |
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| CN109633878A CN109633878A (en) | 2019-04-16 |
| CN109633878B true CN109633878B (en) | 2024-04-16 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205427294U (en) * | 2015-11-30 | 2016-08-03 | 三河市蓝思泰克光电科技有限公司 | Big light ring long wave infrared continuous zooming monitoring camera |
| CN206002761U (en) * | 2016-08-22 | 2017-03-08 | 福建福光股份有限公司 | Zoom short-throw projection camera lens |
| CN106932891A (en) * | 2017-04-19 | 2017-07-07 | 福建福光天瞳光学有限公司 | 25 ~ 75mm long-wave infrared continuous zoom lens and its method of work |
| CN107783355A (en) * | 2017-10-21 | 2018-03-09 | 湖南华南光电(集团)有限责任公司 | A kind of infrared double-view field fast switch type camera lens |
| CN107976791A (en) * | 2017-11-20 | 2018-05-01 | 湖北久之洋红外系统股份有限公司 | A kind of super large multiplying power continuous zooming uncooled ir camera lens |
| CN209842208U (en) * | 2019-01-24 | 2019-12-24 | 福建福光天瞳光学有限公司 | Lightweight continuous zoom lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271792A (en) * | 2006-03-30 | 2007-10-18 | Eastman Kodak Co | Zoom lens barrel and imaging apparatus |
-
2019
- 2019-01-24 CN CN201910069369.0A patent/CN109633878B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205427294U (en) * | 2015-11-30 | 2016-08-03 | 三河市蓝思泰克光电科技有限公司 | Big light ring long wave infrared continuous zooming monitoring camera |
| CN206002761U (en) * | 2016-08-22 | 2017-03-08 | 福建福光股份有限公司 | Zoom short-throw projection camera lens |
| CN106932891A (en) * | 2017-04-19 | 2017-07-07 | 福建福光天瞳光学有限公司 | 25 ~ 75mm long-wave infrared continuous zoom lens and its method of work |
| CN107783355A (en) * | 2017-10-21 | 2018-03-09 | 湖南华南光电(集团)有限责任公司 | A kind of infrared double-view field fast switch type camera lens |
| CN107976791A (en) * | 2017-11-20 | 2018-05-01 | 湖北久之洋红外系统股份有限公司 | A kind of super large multiplying power continuous zooming uncooled ir camera lens |
| CN209842208U (en) * | 2019-01-24 | 2019-12-24 | 福建福光天瞳光学有限公司 | Lightweight continuous zoom lens |
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| CN109633878A (en) | 2019-04-16 |
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