Automatic focusing infrared lens
By introducing infrared sensors and automatic adjustment motor systems into infrared lenses, the problem of low manual adjustment efficiency of existing infrared lenses is solved, and automatic focus and efficient infrared image capture are achieved at different distances.
Patent Information
- Application Number
- CN202322709943.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-10
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing infrared lenses require manual operation in focal length adjustment, and lack efficiency and accuracy, making it difficult to adapt to targets of different distances, especially in complex environments to quickly capture clear infrared images.
An automatic focusing infrared lens is designed to detect the target distance through infrared sensors, control the motor and transmission gear system to realize automatic adjustment of the lens, and combine the support device to ensure the accurate movement and focus effect of the lens.
It realizes automatic focus at different distances, improves the clarity and capture efficiency of infrared images, and is suitable for military reconnaissance, security monitoring and medical diagnosis in complex environments.
Smart Images
Figure CN222259687U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of infrared lenses, in particular to an automatic focusing infrared lens. Background Art
[0002] An autofocus infrared lens is an optical device used for infrared imaging. It can automatically adjust the position of the lens according to the distance or focus position of the observed target to achieve clear infrared image capture. Compared with manually focused infrared lenses, autofocus infrared lenses can provide more convenient and accurate focus adjustment, making infrared imaging more efficient and reliable.
[0003] In the field of traditional optics, autofocus technology has been widely used, for example in cameras, telescopes, etc. With the development of infrared imaging technology and the increase in application demand, autofocus infrared lenses have gradually become an important part of infrared imaging systems.
[0004] The working principle of the autofocus infrared lens mainly depends on the cooperation of the sensor and the control circuit. The sensor can measure the distance or focus position of the observed target and transmit this information to the control circuit. The control circuit will adjust the position of the lens by controlling the rotation of the motor according to the feedback signal of the sensor to achieve automatic focusing. This autofocus mechanism can quickly and accurately adjust the focal length, adapt to targets at different distances, and produce clear infrared images. The application scenarios of the autofocus infrared lens are wide, including military reconnaissance, security monitoring, fire detection, medical diagnosis and other fields. It can quickly and accurately capture infrared images in complex environments, providing important information support and decision-making basis. Therefore, in order to meet the needs of different applications, an infrared lens that can automatically focus is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide an automatic focusing infrared lens to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic focusing infrared lens, including a camera body, a lens is provided at one end of the camera body, a lens slot is provided on the surface of the lens, the lens slot is fixedly installed at one end of the camera body, the lens is adapted to the lens slot, the lens is responsible for focusing infrared radiation onto a focal plane, the lens is usually made of a transparent infrared material, such as zinc selenide, cadmium fluoride, calcium fluoride, etc., the shape and curvature of the lens will affect the focusing effect, common lens shapes include convex lenses, concave lenses, etc., a shading plate is provided on the surface of the lens, a snap ring is provided on one side surface of the shading plate, the snap ring is adapted to the snap slot in the camera body, an adjusting gear is provided on the surface of the camera body, a supporting device is provided on the surface of the camera body, the supporting device includes a supporting pad installed on the surface of the camera body, the supporting pad is fixedly installed A supporting splint is provided on the surface of the supporting plate, a supporting buffer plate is provided on the surface of the supporting splint, an auxiliary groove is fixedly provided at one end of the supporting plate, an adjusting plate is provided on the surface of the supporting device, an auxiliary handle is fixedly provided on the surface of the adjusting plate, an adjusting ring is provided on the surface of the adjusting plate, the adjusting ring is matched with the transmission gear, an adjusting device is provided on the surface of the adjusting plate, the adjusting device includes an adjusting slot plate installed on the surface of the adjusting plate, an adjusting motor is provided on the surface of the adjusting slot plate, a transmission gear is provided at the output end of the adjusting motor, the transmission gear is matched with the adjusting gear, the transmission gear is matched with the adjusting slot plate, an optical component is provided at one end of the camera body, the optical component is used to adjust the transmission and focusing of light, common optical elements include convex lenses, concave lenses, reflectors, etc., convex lenses can converge light, concave lenses can diverge light, and reflectors can change the propagation direction of light.
[0007] Preferably, in order to achieve the purpose of automatic focusing, an adjustment plate is provided on the surface of the camera body, and an adjustment device is provided on the surface of the adjustment plate.
[0008] Preferably, in order to facilitate the installation and fixation of the camera body, a supporting device is provided on the surface of the camera body.
[0009] Preferably, in order to ensure that the camera body has a certain light shielding property when in use, a light shielding plate is provided at one end of the camera body.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] (1) In order to achieve the purpose of automatic focusing, an adjustment plate is provided on the surface of the camera body, and an adjustment device is provided on the surface of the adjustment plate. When in use, the distance is detected by an infrared sensor, and the detected data is transmitted to the control circuit, so that the control circuit controls the operation of the adjustment motor, so that the operation of the adjustment motor drives the transmission gear to rotate, and the rotation of the transmission gear drives the adjustment gear to rotate, so as to adjust the focal length of the camera body.
[0012] (2) In order to facilitate the installation and fixation of the camera body, a supporting device is provided on the surface of the camera body. When in use, the camera body can be clamped and fixed by using a supporting clamp. The supporting buffer plate on the surface of the supporting clamp buffers the supporting clamp. The camera body can also be connected and fixed by using an auxiliary groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 This is one of the structural schematic diagrams of an automatic focusing infrared lens proposed by the utility model;
[0015] Figure 2 This is the second structural schematic diagram of an automatic focusing infrared lens proposed by the utility model;
[0016] Figure 3 The utility model provides a schematic diagram of an adjustable cone structure of an automatic focusing infrared lens.
[0017] In the figure: 1. camera body; 2. lens; 3. sunshade; 4. adjusting gear; 5. supporting device; 6. adjusting device; 7. optical component; 8. adjusting plate; 9. manual adjusting ring; 201. lens slot; 301. snap ring; 501. supporting splint; 502. supporting buffer plate; 503. supporting pad; 504. auxiliary slot; 505. supporting plate; 601. adjusting motor; 602. transmission gear; 603. adjusting slot plate; 801. adjusting ring; 802. auxiliary handle. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figure 1-3The utility model provides a technical solution: an automatic focusing infrared lens, including a camera body 1, a lens 2 is provided at one end of the camera body 1, a lens slot 201 is provided on the surface of the lens 2, the lens slot 201 is fixedly installed at one end of the camera body 1, the lens 2 is adapted to the lens slot 201, the lens 2 is responsible for focusing infrared radiation onto a focal plane, the lens 2 is usually made of a transparent infrared material, such as zinc selenide, cadmium fluoride, calcium fluoride, etc., the shape and curvature of the lens 2 will affect the focusing effect, common lens 2 shapes include convex lenses, concave lenses, etc., a shading plate 3 is provided on the surface of the lens 2, and a clamping ring 301 is provided on one side of the shading plate 3 The snap ring 301 is matched with the snap groove in the camera body 1. The snap groove and the snap ring 301 are used to facilitate the replacement and installation of the shading plate 3. An adjusting gear 4 is provided on the surface of the camera body 1. A supporting device 5 is provided on the surface of the camera body 1. An adjusting ring 801 is matched with a transmission gear 602. An adjusting device 6 is provided on the surface of the adjusting plate 8. The adjusting device 6 includes an adjusting slot plate 603 installed on the surface of the adjusting plate 8. An adjusting motor 601 is provided on the surface of the adjusting slot plate 603. The adjusting motor 601 is electrically connected to a power supply and a control device. A transmission gear 602 is provided at the output end of the adjusting motor 601. The transmission gear 602 is matched with the adjusting gear 4. The transmission gear 602 is matched with the adjustment slot plate 603. An optical component 7 is provided at one end of the camera body 1. The optical component 7 is used to adjust the transmission and focusing of light. Common optical elements include convex lenses, concave lenses, reflectors, etc. Convex lenses can converge light, while concave lenses can diverge light. Reflectors can change the propagation direction of light. When in use, the distance is detected by an infrared sensor. The infrared sensor is a key part of the automatic focusing mechanism and is used to measure the distance or focal position of the observed target. Commonly used sensors include infrared ranging sensors, phase focusing sensors, etc. The sensor measures the distance or focal position of the target by sending and receiving infrared light signals or other physical signals, and transmits the detected data to the control circuit. The control circuit is responsible for receiving the signal from the sensor and controlling the rotation of the adjustment motor 601 according to the signal. The control circuit is usually composed of a microprocessor or a control chip, and can perform automatic focusing calculations and controls according to a preset focusing algorithm, so that the control circuit controls the operation of the adjustment motor 601, and the operation of the adjustment motor 601 drives the transmission gear 602 to rotate. The rotation of the transmission gear 602 drives the adjustment gear 4 to rotate and drives the focal length of the camera body 1 to adjust.
[0020] The supporting device 5 includes a supporting pad 503 installed on the surface of the camera body 1, and the supporting pad 503 is fixedly installed on the surface of the supporting plate 505. The surface of the supporting plate 505 is provided with a supporting clamping plate 501, and the surface of the supporting clamping plate 501 is provided with a supporting buffer plate 502. An auxiliary groove 504 is fixedly provided at one end of the supporting plate 505. An adjusting plate 8 is provided on the surface of the supporting device 5, and an auxiliary handle 802 is fixedly installed on the surface of the adjusting plate 8. An adjusting ring 801 is provided on the surface of the adjusting plate 8. A manual adjusting ring 9 is provided on the surface of the camera body 1, which can be manually adjusted according to the needs of the user. When in use, the camera body 1 can be clamped and fixed by using the supporting clamping plate 501, and the supporting buffer plate 502 on the surface of the supporting clamping plate 501 can buffer the supporting clamping plate 501. The auxiliary groove 504 can also be used to connect and fix the camera body 1. The supporting device 5 is used to fix and adjust the position of the lens. The supporting device 5 ensures the accurate movement and focusing effect of the lens.
[0021] Working principle: When in use, the camera body 1 is clamped and fixed using the support clamp 501, and the support buffer plate 502 on the surface of the support clamp 501 buffers the support clamp 501. The auxiliary groove 504 can also be used to connect and fix the camera body 1. The infrared sensor detects the distance, and the detected data is transmitted to the control circuit, so that the control circuit controls the operation of the adjustment motor 601, so that the operation of the adjustment motor 601 drives the transmission gear 602 to rotate, and the rotation of the transmission gear 602 drives the adjustment gear 4 to rotate and drive the focal length of the camera body 1 to adjust. The sensor measures the distance or focal position of the target, and the control circuit calculates the position and direction of the lens to be adjusted according to the feedback signal of the sensor, and then drives the adjustment gear 4 to realize automatic focusing of the lens by rotating the adjustment motor 601. In this way, it can be ensured that the infrared lens can automatically focus at different distances, so as to obtain a clear infrared image.
[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. An automatic focusing infrared lens, comprising a camera body (1), characterized in that: A lens (2) is provided at one end of the camera body (1); an adjusting gear (4) is provided on the surface of the camera body (1); a supporting device (5) is provided on the surface of the camera body (1); an adjusting plate (8) is provided on the surface of the supporting device (5); an adjusting device (6) is provided on the surface of the adjusting plate (8); the adjusting device (6) comprises an adjusting slot plate (603) mounted on the surface of the adjusting plate (8); an adjusting motor (601) is provided on the surface of the adjusting slot plate (603); a transmission gear (602) is provided at the output end of the adjusting motor (601); and the transmission gear (602) is matched with the adjusting slot plate (603).
2. The automatic focusing infrared lens according to claim 1, characterized in that: The support device (5) comprises a support pad (503) mounted on the surface of the camera body (1); the support pad (503) is fixedly mounted on the surface of a support plate (505); a support clamping plate (501) is provided on the surface of the support plate (505); a support buffer plate (502) is provided on the surface of the support clamping plate (501); and an auxiliary groove (504) is fixedly provided at one end of the support plate (505).
3. The automatic focusing infrared lens according to claim 2, characterized in that: An adjustment ring (801) is provided on the surface of the adjustment plate (8), the adjustment ring (801) is matched with the transmission gear (602), and an auxiliary handle (802) is fixedly provided on the surface of the adjustment plate (8).
4. The automatic focusing infrared lens according to claim 3, characterized in that: The transmission gear (602) is matched with the adjustment gear (4).
5. The automatic focusing infrared lens according to claim 4, characterized in that: An optical component (7) is provided at one end of the camera body (1).
6. The automatic focusing infrared lens according to claim 5, characterized in that: A light shielding plate (3) is provided on the surface of the lens (2).
7. The automatic focusing infrared lens according to claim 6, characterized in that: A lens slot (201) is provided on the surface of the lens (2); the lens slot (201) is fixedly mounted on one end of the camera body (1); and the lens (2) is adapted to the lens slot (201).
8. The automatic focusing infrared lens according to claim 6, characterized in that: A snap ring (301) is provided on one side surface of the light shielding plate (3), and the snap ring (301) is adapted to fit into a snap groove in the camera body (1).
9. The automatic focusing infrared lens according to claim 6, characterized in that: A manual adjustment ring (9) is provided on the surface of the camera body (1).