CN112835169A - Continuous zooming infrared lens - Google Patents
Continuous zooming infrared lens Download PDFInfo
- Publication number
- CN112835169A CN112835169A CN202110223803.3A CN202110223803A CN112835169A CN 112835169 A CN112835169 A CN 112835169A CN 202110223803 A CN202110223803 A CN 202110223803A CN 112835169 A CN112835169 A CN 112835169A
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- Prior art keywords
- lens
- focusing
- guide rail
- group
- zoom
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- 238000000034 method Methods 0.000 claims abstract description 4
- 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
- 239000011521 glass Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention provides a continuous zooming infrared lens, which sequentially comprises the following components from an object side to an image side: the focusing lens group comprises a first lens, a focusing objective lens group, a focusing guide rail group and a connecting column; in the focusing process, the first lens is fixed, and the focusing objective lens group moves back and forth along the focusing guide rail group; one end of the connecting column is connected with the focusing objective lens group, and the other end of the connecting column is connected with the focusing guide rail group. The invention realizes that the focusing hand wheel can rotate all the time in one direction under the condition of one focusing cylinder and one focusing hand wheel, thereby realizing continuous zooming.
Description
Technical Field
The invention relates to the technical field of imaging, in particular to a continuous zooming infrared lens.
Background
At present, when a focusing lens is used for focusing, a focusing groove is limited, so that a focusing hand wheel can only rotate in a returning direction after rotating to the limiting position in one direction, and the focusing hand wheel cannot rotate all the time in one direction.
Disclosure of Invention
The invention aims to provide a continuous zooming infrared lens, which can realize that a focusing hand wheel can rotate all the time in one direction under the condition of one focusing cylinder and one focusing hand wheel.
The invention provides a continuous zooming infrared lens, which sequentially comprises the following components from an object side to an image side: the focusing lens group comprises a first lens, a focusing objective lens group, a focusing guide rail group and a connecting column; in the focusing process, the first lens is fixed, and the focusing objective lens group moves back and forth along the focusing guide rail group; one end of the connecting column is connected with the focusing objective lens group, and the other end of the connecting column is connected with the focusing guide rail group.
Further, the focusing objective lens group sequentially comprises from an object side to an image side: the lens comprises a second lens and a third lens, wherein the second lens and the third lens are arranged in parallel, and a distance is reserved between the second lens and the third lens.
Further, the total length of the lens of the focusing objective group is 19.5mm, and the distance between the second lens and the third lens is 11.25 mm.
Further, the object side surface of the first lens is a convex surface.
Further, the second lens and the third lens are positive power lenses.
Further, the second lens and the third lens are made of germanium glass.
Further, the guide rail formed by the focusing guide rail group is an arc-shaped guide rail groove.
Further, the distance between the first lens and the focusing objective lens group is 16.75 mm.
Furthermore, the two connecting columns are symmetrically arranged and continuously rotate on the guide rails of the focusing guide rail set, so that the aim of moving the focusing guide rail set back and forth is fulfilled.
The focusing guide rail set is connected with the focusing guide rail set, and the motor drives the focusing guide rail set to realize continuous movement zooming.
Compared with the prior art, the invention has the beneficial effects that: on one hand, the focusing guide rail group has no limit limitation and can slide all the time to realize continuous zooming; on the other hand, simple structure, the equipment is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic cross-sectional view of a continuous-zoom infrared lens according to an embodiment of the present invention;
FIG. 2 is a schematic view of a focusing rail set according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a focusing rail set according to an embodiment of the present invention;
FIG. 4 is a schematic top view of an arcuate guide track groove in accordance with an embodiment of the present invention;
FIG. 5 is a schematic right view of an arc-shaped guide rail groove according to an embodiment of the present invention;
fig. 6 is a diagram of the sliding track of the connection column in the arc-shaped guide rail groove according to the embodiment of the invention.
Description of reference numerals:
1: a first lens; 2: a focusing objective lens group; 3: a focusing guide rail set; 4: connecting columns; 5: carrying out top thread; 6: a motor; 7: an arc-shaped guide rail groove.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 3, the present invention provides a continuous-zoom infrared lens, sequentially from an object side to an image side, comprising: the focusing lens comprises a first lens 1, a focusing objective lens group 2, a focusing guide rail group 3 and a connecting column 4. In the focusing process, the first lens 1 is fixed, and the focusing objective lens group 2 moves back and forth along the focusing guide rail group 3. One end of the connecting column 4 is connected with the focusing objective lens group 2, and the other end is connected with the focusing guide rail group 3. The focusing objective lens assembly 2 sequentially includes from an object side to an image side: the second lens and the third lens are arranged in parallel, and a distance is reserved between the second lens and the third lens.
Preferably, the total length of the lens of the focusing objective lens group 2 is 19.5mm, and the distance between the second lens and the third lens is 11.25 mm.
The object side surface of the first lens 1 is convex. The second lens and the third lens are positive focal power lenses. The second lens and the third lens are made of germanium glass.
The guide rail formed by the focusing guide rail group 3 is an arc-shaped guide rail groove 7. The distance between the first lens 1 and the focusing objective lens group 2 is 16.75 mm. Two connecting columns 4 are symmetrically arranged, and the connecting columns 4 continuously rotate on the arc-shaped guide rail grooves 7 of the focusing guide rail group 3, so that the aim of moving the focusing guide rail group 3 back and forth is fulfilled. Since the arc-shaped guide groove 7 is a continuous curved guide, the connecting column 4 can be rotated in one direction in unison.
The zoom lens further comprises a motor 6, wherein the motor 6 is connected with the focusing guide rail set 3, and drives the focusing guide rail set 3 to realize continuous movement zooming. The motor 6 rotates the focusing guide rail set 3 in the same direction to enable the objective lens set 2 to zoom back and forth. In order to fix the arc-shaped guide rail groove 7, the installation is performed by using the jackscrew 5.
The working principle of the invention is as follows: the motor 6 supplies power to the motor 6, the motor 6 drives the focusing guide rail set 4 to rotate in the same direction, so that the connecting column 4 is driven to rotate in the arc-shaped guide rail groove 7 of the focusing guide rail set 3 in the same direction all the time, and the connecting column 4 and the focusing objective lens set 2 are fixed together, so that the focusing guide rail set 3 drives the focusing objective lens set 2 to focus back and forth while rotating in the same direction all the time.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A continuous-zoom infrared lens is characterized by comprising the following components in sequence from an object side to an image side: the focusing lens comprises a first lens (1), a focusing objective lens group (2), a focusing guide rail group (3) and a connecting column (4); in the focusing process, the first lens (1) is fixed, and the focusing objective lens group (2) moves back and forth along the focusing guide rail group (3); one end of the connecting column (4) is connected with the focusing objective lens group (2), and the other end is connected with the focusing guide rail group (3).
2. A continuous-zoom infrared lens according to claim 1, characterized in that the focusing objective lens group (2) comprises, in order from object side to image side: the lens comprises a second lens and a third lens, wherein the second lens and the third lens are arranged in parallel, and a distance is reserved between the second lens and the third lens.
3. A zoom lens according to claim 2, wherein the focusing objective lens group (2) has an overall lens length of 19.5mm, and the distance between the second lens element and the third lens element is 11.25 mm.
4. A zoom lens as claimed in claim 2, characterized in that the object-side surface of the first lens (1) is convex.
5. A zoom lens as recited in claim 4, wherein said second lens element and said third lens element are positive power lenses.
6. A zoom lens as recited in claim 5, wherein the second lens element and the third lens element are made of germanium glass.
7. A zoom lens as set forth in claim 1, characterized in that the focusing guide set (3) is formed with guide rails in the form of arc-shaped guide groove (7).
8. A continuous-zoom infrared lens according to claim 1, characterized in that the distance between the first lens element (1) and the focusing objective lens group (2) is 16.75mm when not focusing.
9. The continuous zoom infrared lens as claimed in claim 7, wherein there are two connecting columns (4) symmetrically arranged, and the connecting columns (4) continuously rotate on the arc-shaped guide rail grooves (7) of the focusing guide rail set (3) to achieve the purpose of moving the focusing guide rail set (3) back and forth.
10. A continuous-zoom infrared lens according to claim 1, characterized by further comprising a motor (6), wherein the motor (6) is connected to the focusing guide set (3) to drive the focusing guide set (3) for continuous-movement zooming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223803.3A CN112835169A (en) | 2021-03-01 | 2021-03-01 | Continuous zooming infrared lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223803.3A CN112835169A (en) | 2021-03-01 | 2021-03-01 | Continuous zooming infrared lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112835169A true CN112835169A (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110223803.3A Pending CN112835169A (en) | 2021-03-01 | 2021-03-01 | Continuous zooming infrared lens |
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| Country | Link |
|---|---|
| CN (1) | CN112835169A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607287A (en) * | 2021-08-14 | 2021-11-05 | 长春理工大学 | Infrared imaging device with automatic and manual focusing functions |
| CN114994952A (en) * | 2022-06-02 | 2022-09-02 | 维沃移动通信有限公司 | Intelligent glasses, zoom camera and electronic equipment |
-
2021
- 2021-03-01 CN CN202110223803.3A patent/CN112835169A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607287A (en) * | 2021-08-14 | 2021-11-05 | 长春理工大学 | Infrared imaging device with automatic and manual focusing functions |
| CN113607287B (en) * | 2021-08-14 | 2023-06-02 | 长春理工大学 | Infrared imaging equipment with automatic and manual focusing functions |
| CN114994952A (en) * | 2022-06-02 | 2022-09-02 | 维沃移动通信有限公司 | Intelligent glasses, zoom camera and electronic equipment |
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Effective date of registration: 20231203 Address after: 513300 Hedong Office Building, Changbu District, Zhaigang Town, Liannan County, Qingyuan City, Guangdong Province Applicant after: GUANGDONG MINGHUA MACHINERY Co.,Ltd. Address before: 101318 4th floor, 30-1 / F, airport ronghuiyuan, airport economic core area, Shunyi District, Beijing Applicant before: Beijing Hongda Tiancheng Defense Equipment Technology Co.,Ltd. |