CN114355596B - Infrared lens - Google Patents
Infrared lens Download PDFInfo
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- CN114355596B CN114355596B CN202111663161.5A CN202111663161A CN114355596B CN 114355596 B CN114355596 B CN 114355596B CN 202111663161 A CN202111663161 A CN 202111663161A CN 114355596 B CN114355596 B CN 114355596B
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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
- G02B15/143—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 having three groups only
- G02B15/1431—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 having three groups only the first group being positive
- G02B15/143105—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 having three groups only the first group being positive arranged +-+
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/02—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of crystals, e.g. rock-salt, semi-conductors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
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- 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
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
-
- 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
- G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lens Barrels (AREA)
Abstract
The invention relates to an infrared lens, wherein an optical system of the lens comprises a first positive lens, a first negative lens and a second positive lens which are sequentially arranged at intervals along the incidence direction of light rays, wherein the air interval between the first positive lens and the first negative lens is 47.87mm; the air interval between the first negative lens and the second positive lens is 12mm, wherein the lens structure comprises a main lens barrel, a focusing lens barrel and a connecting flange, the focusing lens barrel is sleeved in the main lens barrel, the connecting flange is screwed on the rear end face of the main lens barrel, the design is compact and reasonable, the optical system is stable, the imaging quality is good, the optical system can be matched with a long-wave infrared uncooled 640 x 512 12 mu m detector, live recording and monitoring tasks can be performed, the manufacturing cost is low, and the optical system can be produced in a large scale.
Description
Technical field:
the invention relates to an infrared lens.
The background technology is as follows:
with the continuous development and the increasing maturity of the uncooled detector technology, the long-wave infrared uncooled optical system is widely applied in the military and civil fields, and the infrared lens has good anti-interference performance; the action distance at night is long; the capability of penetrating smoke dust and haze is strong; can work all day by day; the imaging system has the advantages of multi-target panoramic observation, tracking and target recognition capabilities, good target stealth resistance capability and the like, so that higher and higher requirements are put on the imaging quality of the optical system. However, due to certain thermal effects of the infrared optical material and the mechanical material, severe changes in the operating temperature may have serious effects on the optical system, such as focal length changes, image plane drift, degradation of imaging quality, and the like. Therefore, in order to adapt to different environmental temperatures, the infrared lens is required to have certain temperature self-adaptation capability; the infrared lens is required to have the characteristics of being suitable for different weather conditions in a large range under the condition of continuous monitoring for a long time, so that the infrared lens has the characteristics of high resolution, strong fog permeability, low distortion rate, simple structure, reliable strength, strong stability and the like under the condition of long-time monitoring. However, most of the lenses on the market have complex structures, high processing difficulty and cost, poor fog permeability and low resolution, and particularly, the shapes of monitored objects are difficult to distinguish due to the fact that the ambient temperature is basically close when the lenses are monitored at night.
The invention comprises the following steps:
aiming at the technical problems, the invention provides the infrared lens which is compact and reasonable in design and good in imaging quality.
The invention solves the technical problem by adopting a scheme that an infrared lens is characterized in that: the optical system of the lens comprises a first positive lens, a first negative lens and a second positive lens which are sequentially arranged at intervals along the incidence direction of light rays, wherein the air interval between the first positive lens and the first negative lens is 47.87mm; the air interval between the first negative lens and the second positive lens is 12mm;
the optical system composed of the first positive lens, the first negative lens and the second positive lens achieves the following technical indexes:
(1) Working wave band: 8 μm to 12 μm;
(2) Focal length: f' =70;
(3) The detector comprises: long wave infrared non-refrigeration 640 x 512,12um
(4) Field angle FOV:6.28 DEG x5.02 DEG
(5) Relative pore diameter D/f': 1/1.0.
Further, the structure of the lens comprises a main lens barrel, a focusing lens barrel and a connecting flange, wherein the focusing lens barrel is sleeved in the main lens barrel, and the connecting flange is fastened on the rear end face of the main lens barrel in a threaded manner.
Further, a focusing cam is sleeved on the periphery of the rear side of the main lens barrel, corresponding to the focusing lens barrel, a gear is arranged on the periphery of the focusing cam, a shoulder for fixing the focusing cam is arranged on the periphery of the main lens barrel, the front end of the focusing cam abuts against the shoulder, and three limiting blocks are uniformly distributed at the rear end of the focusing cam and used for limiting axial movement of the focusing cam.
Further, the focusing cam drives the focusing lens barrel to move along the axial direction of the main lens barrel through the focusing guide pin, a curve groove matched with the focusing guide pin is formed in the focusing cam, a straight line groove matched with the focusing guide pin and guiding the focusing guide pin to slide along the axial direction is formed in the main lens barrel, one end of the focusing guide pin is fixedly connected with the focusing lens barrel, and the other end of the focusing guide pin penetrates through the straight line groove and stretches into the curve groove.
Further, the first positive lens is mounted in the front end of the main lens barrel, a first clamping ring piece for clamping the first positive lens is mounted in the main lens barrel, the first negative lens is mounted at the rear end of the focusing lens barrel, a second clamping ring piece for clamping the first negative lens is mounted on the focusing lens barrel, the second positive lens is mounted in the rear end of the main lens barrel, and a third clamping ring piece for clamping the second positive lens is mounted in the main lens barrel.
Further, the motor seat is fixedly screwed on the periphery of the main lens barrel, the motor is fixedly screwed on the motor seat, and the motor seat is provided with a driving gear set which is meshed and connected with a gear on the focusing cam, and the driving gear set is driven by the motor.
Further, foretell motor cabinet is L type, and the motor cabinet includes fixed part and installation department, and installation department vertical fixation is on the tip of fixed part, the fixed part have with main lens cone periphery matched with curved surface, fixed part spiro union is on main lens cone periphery, the fixed part be equipped with main lens cone complex draw-in groove, guarantee the motor assembly consistency, the installation department on through screw fixation motor, the main shaft of motor runs through installation department and drive gear group suit on the main shaft of motor.
Further, the driving gear set comprises a shaft sleeve, a driving gear, a gasket and a nut, wherein the shaft sleeve is fixed on a motor shaft through a screw, the driving gear is arranged on the shaft sleeve, the gasket is arranged on the driving gear, and the nut is locked on the shaft sleeve and compresses the driving gear.
Further, a potentiometer is arranged beside the driving gear on the mounting part, and a potentiometer gear meshed with the gear is arranged on the shaft end of the potentiometer.
Further, the mirror parameters of the first positive lens, the first negative lens, and the second positive lens are as follows:
aspheric related data
The aspherical expression is:
z represents the position in the direction of the optical axis, r represents the height in the direction perpendicular to the optical axis, c represents the radius of curvature, k represents the conic coefficient, < >>、/>、/>、/>.. it represents an aspherical coefficient. In the case of the aspherical surface data, E-n represents "-">", e.g. 4.525E-005Represents->。
Compared with the prior art, the invention has the following beneficial effects: the design is compact and reasonable, the optical system is stable, the imaging quality is good, the optical system can be matched with a long-wave infrared uncooled 640 x 512 12 mu m detector to perform live recording and monitoring tasks, the manufacturing cost is low, and the optical system can be produced in a large scale.
Description of the drawings:
the patent of the invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of an optical system of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is an overall exploded view;
in the figure: 1-a main barrel; 2-a first positive lens (i.e. optic a); 3-a first clamping ring piece; 4-focusing lens barrel; 5-focusing cam; 6-a first limiting block; 7-a second limiting block; 8-a first negative lens (i.e. lens B); 9-a second clamping ring piece; 10-connecting flanges; 11-an electric motor; 12-motor base; 13-a drive gear set; 14-a second positive lens (i.e. optic C); 15-a third clamping ring piece; 16-shaft sleeve; 17-nut; 18-potentiometer gear; 19-image plane; 20-potentiometer, 21-focusing guide pin; 22-a micro switch; 23-blocking nails; 24-a microswitch protection sheet; 25-gaskets.
The specific embodiment is as follows:
the invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1-3, an infrared lens: the optical system of the lens comprises a first positive lens 2, a first negative lens 8 and a second positive lens 14 which are sequentially arranged at intervals along the incidence direction of light rays, and then reaches an image surface 19, wherein the air interval between the first positive lens and the first negative lens is 47.87mm; the air interval between the first negative lens and the second positive lens is 12mm, and the first positive lens 2, the first negative lens 8 and the second positive lens 14 are meniscus germanium lenses with convex surfaces facing the object side.
In this embodiment, the optical system composed of the lenses can achieve the following technical indexes:
(1) Working wave band: 8 μm to 12 μm;
(2) Focal length: f' =70;
(3) The detector comprises: long wave infrared non-refrigeration 640 x 512,12 um;
(4) Field angle FOV:6.28 DEG x5.02 DEG
(5) Relative pore diameter D/f': 1/1.0.
In this example, the mirror parameters of the lenses are shown in the following table:
table one: optical element parameter meter
And (II) table: aspheric related data
The aspherical expression is:
z represents the position in the direction of the optical axis, r represents the height in the direction perpendicular to the optical axis, c represents the radius of curvature, k represents the conic coefficient,、/>、/>、/>.. it represents an aspherical coefficient. In aspherical dataE-n represents "-">", e.g. 4.525E-005 represents +.>。
In this embodiment, the lens structure includes a main lens barrel 1, a focusing lens barrel 4, and a connection flange 9, the focusing lens barrel 4 is sleeved in the main lens barrel 1, and the connection flange 9 is screwed on the rear end surface of the main lens barrel 1.
In this embodiment, the first positive lens 2 is mounted in the front end of the main lens barrel 1, the first clamping ring piece 3 for clamping the first positive lens 2 is mounted in the main lens barrel, the first negative lens 8 is mounted at the rear end of the focusing lens barrel 4, the focusing lens barrel 4 is mounted with the second clamping ring piece 9 for clamping the first negative lens 8, the second positive lens 14 is mounted at the rear end of the main lens barrel 1, and the main lens barrel is mounted with the third clamping ring piece 15 for clamping the second positive lens.
In this embodiment, the focusing cam 5 is sleeved on the outer periphery of the rear side of the main lens barrel 1 corresponding to the focusing lens barrel, the gear 501 is arranged on the outer periphery of the focusing cam 5, a first limiting block 6 and two second limiting blocks 7 for fixing the focusing cam 5 are arranged on the outer periphery of the main lens barrel, the front end of the focusing cam 5 abuts against the shoulder of the main lens barrel 1, and the rear end of the focusing cam 5 abuts against the first limiting block 6 and the second limiting block 7.
In this example, in order to ensure the clearance between the focusing cam 5 and the first and second limiting blocks, the first and second limiting blocks are abutted against the step of the main lens barrel 1, and the focusing cam 5 is radially limited by the fit tolerance of the focusing cam 5 sleeved on the step of the main lens barrel 1; in order to ensure that the focusing cam is uniformly limited, a first limiting block, a second limiting block and a third limiting block are uniformly distributed on the side part of the focusing cam 5 to limit the focusing cam.
The focusing cam is provided with a curved slot 502 which is matched with the focusing guide nail 21 in the circumferential direction, the main lens barrel is provided with a linear slot 101 which is matched with the focusing guide nail 21 and guides the focusing guide nail 21 to slide along the axial direction, one end of a plurality of focusing guide nails 21 is fixed on the periphery of the focusing lens barrel 4, the other end of the focusing guide nail 21 passes through the linear slot 101 and stretches into the curved slot 502, and when the focusing cam 5 is subjected to external force rotary motion, the curved slot 502 guides the focusing guide nail 21 and the focusing lens barrel 4 to move along the axial direction of the main lens barrel 1.
In the embodiment, a motor seat 12 is fixedly screwed on the periphery of the main lens barrel 1, a motor 11 is fixedly screwed on the motor seat, a driving gear set 13 which is in meshed connection with a gear 501 on a focusing cam is arranged on a motor main shaft, and the driving gear set is driven by the motor 11; in order to ensure the reliability of the motor, the screw threads at the matching position of the motor and the motor seat and the matching surface of the driving gear set 13 and the motor shaft are reinforced and fixed by using AB glue.
The motor 11 drives the focusing cam 5 to rotate through the driving gear set 13, and the focusing cam 5 drives the focusing guide pin 21 arranged in the focusing cam curve groove 502 to rotate, but the linear groove 101 in the main lens barrel 1 limits the rotation trend of the focusing guide pin 21, so that the focusing guide pin and the focusing lens barrel 4 move linearly.
In this example, the driving gear set 13 comprises axle sleeve 16, driving gear, gasket 25, nut 17, the axle sleeve 16 is fixed in on the motor shaft through the screw, for guaranteeing the reliability, uses AB glue to strengthen fixedly, driving gear places on the axle sleeve 16, for guaranteeing that the gear does not interfere with the screw of fixed axle sleeve, driving gear department is equipped with dodges the groove, the gasket is placed on driving gear, the nut lock is attached to the axle sleeve, compresses tightly driving gear, through screw fixed position to use AB glue to strengthen fixedly.
In this embodiment, the motor cabinet be L type, the motor cabinet includes fixed part, installation department vertical fixation is on the tip of fixed part, the fixed part have with main lens cone periphery matched with curved surface, fixed part spiro union is on main lens cone periphery, for guaranteeing motor equipment position uniformity, be equipped with spacing buckle on installation department periphery rampart and main lens cone matched with curved surface, cooperate with spacing recess on the main lens cone, the main shaft of motor runs through installation department and drive gear suit on the main shaft of motor.
In this embodiment, the installation part is provided with a potentiometer 20 located beside the driving gear, the shaft end of the potentiometer is provided with a potentiometer gear 18 meshed with the focusing cam, the potentiometer provides position parameters for lens travel, and for ensuring reliability, the thread of the potentiometer matched with the motor frame and the matching surface of the potentiometer spindle and the potentiometer gear are reinforced and fixed by using AB glue.
In this embodiment, in order to ensure the lens sealing, a glue groove is formed on the inner wall of the front end of the main barrel at the position corresponding to the first clamping ring piece so as to apply sealant.
In the example, the outer side wall of the focusing lens barrel is provided with three fixing seats in the circumferential direction, the circumferential angle of the fixing seats in the circumferential direction is smaller than 30 degrees, and the fixing seats are provided with mounting hole sites for connecting the focusing guide nails 21; the focusing lens barrel adopts a three-point centering principle (namely, the circumferential angle of the fixing seat in the circumferential direction of the focusing lens barrel is smaller than 30 degrees), so that the contact area between the focusing lens barrel and the main lens barrel is reduced, the weight of components is reduced, the resistance of the lens barrel in the moving process is reduced, and meanwhile, the problem of uneven focusing torsion caused by air pressure difference in the lens when the inner cavity of the lens is focused too frequently can be avoided; the inner cavity of the focusing lens barrel adopts a step design, so that the contact area between the first negative lens and the focusing lens barrel is increased, and the mounting stability is ensured.
In this example, in order to ensure the amount of optical axis offset during the movement of the focusing lens barrel 4, the cooperation between the focusing lens barrel and the main barrel adopts grinding cooperation to improve the cooperation precision and reduce the cooperation gap.
In this embodiment, in order to control the offset of the optical axis after vibration, a dispensing slot is disposed between the connecting flange 10 and the main lens barrel 1, for fixing the connecting flange, a pin hole is disposed on the connecting flange, for limiting the detector, and a glue removing hole is disposed at the connecting flange, so that the post maintenance and disassembly are facilitated.
In this embodiment, the outer side wall of the main lens barrel is provided with a micro switch 22, the micro switch is screwed and fixed on the outer side wall of the main lens barrel, and the focusing cam is provided with a stop block for touching the micro switch.
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.
If the terms "first," "second," etc. are used herein to define a part, those skilled in the art will recognize that: the use of "first" and "second" is used merely to facilitate distinguishing between components and not otherwise stated, and does not have a special meaning.
If the invention discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: 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, the orientation or positional relationship indicated by the terms used to indicate positional relationships such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. applied to any of the above-described technical aspects of the present disclosure are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present patent, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present patent, and the terms used to indicate shapes applied to any of the above-described technical aspects of the present disclosure include shapes that are approximated, similar or close 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. An infrared lens, characterized in that: the optical system of the lens comprises a first positive lens, a first negative lens and a second positive lens which are sequentially arranged at intervals along the incidence direction of light rays, wherein the air interval between the first positive lens and the first negative lens is 47.87mm; the air interval between the first negative lens and the second positive lens is 12mm;
the optical system composed of the first positive lens, the first negative lens and the second positive lens achieves the following technical indexes:
(1) Working wave band: 8 μm to 12 μm;
(2) Focal length: f' =70;
(3) The detector comprises: long wave infrared non-refrigeration 640 x 512,12um
(4) Field angle FOV:6.28 DEG x5.02 DEG
(5) Relative pore diameter D/f': 1/1.0; the structure of the lens comprises a main lens barrel, a focusing lens barrel and a connecting flange, wherein the focusing lens barrel is sleeved in the main lens barrel, and the connecting flange is fastened on the rear end face of the main lens barrel in a threaded manner; the focusing cam is sleeved at the position, corresponding to the focusing lens barrel, of the rear periphery of the main lens barrel, a gear is arranged on the periphery of the focusing cam, a shoulder for fixing the focusing cam is arranged on the periphery of the main lens barrel, the front end of the focusing cam is abutted against the shoulder, and three limiting blocks are uniformly distributed at the rear end of the focusing cam and used for limiting axial movement of the focusing cam; the focusing cam drives the focusing lens barrel to move along the axial direction of the main lens barrel through the focusing guide pin, a curve groove matched with the focusing guide pin is formed in the focusing cam, a straight line groove matched with the focusing guide pin and guiding the focusing guide pin to slide along the axial direction is formed in the main lens barrel, one end of the focusing guide pin is fixedly connected with the focusing lens barrel, and the other end of the focusing guide pin penetrates through the straight line groove and stretches into the curve groove; the first positive lens is arranged in the front end of the main lens barrel, a first clamping ring piece used for clamping the first positive lens is arranged in the main lens barrel, the first negative lens is arranged at the rear end of the focusing lens barrel, a second clamping ring piece used for clamping the first negative lens is arranged in the focusing lens barrel, the second positive lens is arranged in the rear end of the main lens barrel, and a third clamping ring piece used for clamping the second positive lens is arranged in the main lens barrel; the motor seat is fixedly screwed on the periphery of the main lens barrel, the motor is fixedly screwed on the motor seat, the motor seat is provided with a driving gear set which is meshed and connected with a gear on the focusing cam, and the driving gear set is driven by the motor; the motor seat is L-shaped, the motor seat comprises a fixing part and an installation part, the installation part is vertically fixed on the end part of the fixing part, the fixing part is provided with a curved surface matched with the periphery of the main lens barrel, the fixing part is screwed on the periphery of the main lens barrel, the fixing part is provided with a clamping groove matched with the main lens barrel, the assembly consistency of the motor is ensured, the motor is fixed on the installation part through a screw, and a main shaft of the motor penetrates through the installation part and a driving gear set is sleeved on the main shaft of the motor; the method is characterized in that: the driving gear set consists of a shaft sleeve, a driving gear, a gasket and a nut, wherein the shaft sleeve is fixed on a motor shaft through a screw, the driving gear is arranged on the shaft sleeve, the gasket is arranged on the driving gear, and the nut is locked on the shaft sleeve and compresses the driving gear; the potentiometer is arranged beside the driving gear on the mounting part, and a potentiometer gear meshed with the gear is arranged at the shaft end of the potentiometer; the mirror parameters of the first positive lens, the first negative lens and the second positive lens are as follows:
aspheric related data
The aspherical expression is:
z represents the position in the direction of the optical axis, r represents the height in the direction perpendicular to the optical axis, c represents the radius of curvature, k represents the conic coefficient,representing aspherical coefficients;
in the aspherical data, E-n represents'”。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111663161.5A CN114355596B (en) | 2021-12-31 | 2021-12-31 | Infrared lens |
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| CN202111663161.5A CN114355596B (en) | 2021-12-31 | 2021-12-31 | Infrared lens |
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| CN114355596B true CN114355596B (en) | 2023-08-11 |
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| CN109407257A (en) * | 2018-12-28 | 2019-03-01 | 福建福光天瞳光学有限公司 | A kind of f100mm non-refrigeration type LONG WAVE INFRARED camera lens and its assembly method |
| CN110412753A (en) * | 2019-08-08 | 2019-11-05 | 福建福光天瞳光学有限公司 | LONG WAVE INFRARED large aperture zoom lens and its focus adjustment method |
| CN112114415A (en) * | 2020-09-29 | 2020-12-22 | 福建福光天瞳光学有限公司 | Medium-wave motor focusing infrared lens and assembling method thereof |
| CN212675251U (en) * | 2020-06-30 | 2021-03-09 | 福建福光天瞳光学有限公司 | Long-wave electric focusing high-pixel high-resolution infrared lens |
| CN214252712U (en) * | 2020-10-30 | 2021-09-21 | 福建福光天瞳光学有限公司 | Infrared lens |
| CN214252707U (en) * | 2020-10-30 | 2021-09-21 | 福建福光天瞳光学有限公司 | Long-wave motor focusing infrared lens |
-
2021
- 2021-12-31 CN CN202111663161.5A patent/CN114355596B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407257A (en) * | 2018-12-28 | 2019-03-01 | 福建福光天瞳光学有限公司 | A kind of f100mm non-refrigeration type LONG WAVE INFRARED camera lens and its assembly method |
| CN110412753A (en) * | 2019-08-08 | 2019-11-05 | 福建福光天瞳光学有限公司 | LONG WAVE INFRARED large aperture zoom lens and its focus adjustment method |
| CN212675251U (en) * | 2020-06-30 | 2021-03-09 | 福建福光天瞳光学有限公司 | Long-wave electric focusing high-pixel high-resolution infrared lens |
| CN112114415A (en) * | 2020-09-29 | 2020-12-22 | 福建福光天瞳光学有限公司 | Medium-wave motor focusing infrared lens and assembling method thereof |
| CN214252712U (en) * | 2020-10-30 | 2021-09-21 | 福建福光天瞳光学有限公司 | Infrared lens |
| CN214252707U (en) * | 2020-10-30 | 2021-09-21 | 福建福光天瞳光学有限公司 | Long-wave motor focusing infrared lens |
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| CN114355596A (en) | 2022-04-15 |
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