Spectrum filter disc automatic switching mechanism installed in infrared camera

Abstract

The utility model discloses an automatic spectrum filter switching mechanism mounted in an infrared camera, which realizes automatic and accurate switching of optical filters by arranging a mounting plate, an integrated filter wheel, a detachable filter assembly and a transmission assembly between an infrared lens and an infrared movement. The mechanism adopts automatic operation and modular design, solves the problems of tedious operation, slow response and unstable installation in traditional manual replacement of the optical filter, and improves the accuracy of infrared imaging and temperature measurement and the overall stability of equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to infrared thermal imager and filter system field, more specifically relates to a spectrum filter automatic switching mechanism installed in infrared camera. BACKGROUND

[0002] In the field of infrared imaging and temperature measurement, infrared cameras are widely used in industrial detection, security monitoring and scientific research as key detection tools. Traditional infrared cameras are usually composed of main components such as body, infrared lens and infrared core, and are equipped with auxiliary structures such as handle and rear cover. In order to realize accurate collection of different infrared bands and accurate measurement of temperature data, the existing system often sets a special filter between the infrared lens and the infrared core to adjust the infrared radiation received by the sensor.

[0003] However, the replacement of the filter in the prior art mainly relies on manual operation, which has the problems of complicated operation, slow response speed and unstable installation position. During the manual replacement process, the filter and its fixing structure are easy to be worn or damaged, resulting in decreased imaging accuracy and reduced equipment reliability. In addition, the existing filter switching mechanism often exists as an external accessory, and the internal structure layout is relatively loose, which is not conducive to realizing the high integration, miniaturization and light weight requirements of the infrared camera.

[0004] Therefore, there is an urgent need for a spectrum filter automatic switching mechanism installed in an infrared camera. UTILITY MODEL CONTENTS

[0005] The utility model provides a spectrum filter automatic switching mechanism installed in an infrared camera, which has a simple structure, compact layout and can realize rapid automatic switching of multiple filters.

[0006] To achieve the above purpose, the utility model provides the following technical scheme, mainly including:

[0007] A spectrum filter automatic switching mechanism installed in an infrared camera, comprising: a body and an infrared lens; an infrared core is installed in the body, the infrared lens is installed at one end of the body and corresponds to the infrared core, a handle is installed at the upper end of the body, and a rear cover is arranged at the end of the body away from the infrared lens; further comprising a filter switching mechanism installed between the infrared lens and the infrared core through a mounting plate; the filter switching mechanism comprises a filter wheel, a detachable filter assembly and a transmission assembly; the filter wheel is installed on one side of the mounting plate close to the infrared lens through the transmission assembly, the transmission assembly is located on one side of the mounting plate close to the infrared core, a plurality of mounting holes are arranged on the filter wheel for installing the detachable filter assembly;

[0008] Preferably, the detachable filter assembly comprises a fixed piece and a filter, and the fixed piece is detachably mounted on the mounting hole of the filter wheel, and the filter is fixedly mounted on each fixed piece.

[0009] Preferably, the transmission assembly comprises a steering engine, a first transmission gear, a second transmission gear and a rotating shaft, the steering engine is mounted on one side of the mounting plate close to the infrared core, the rotating shaft is rotatably connected to the mounting plate, the filter wheel is mounted on one end of the rotating shaft close to the infrared lens, the power output shaft of the steering engine is provided with the first transmission gear, one end of the rotating shaft close to the infrared core is provided with the second transmission gear, and the first transmission gear is engaged with the second transmission gear.

[0010] Preferably, the mounting plate is provided with a fixed filter wheel mounting part and a fixed transmission assembly mounting part, and the two are arranged separately.

[0011] Preferably, the mounting plate is fixed between the infrared lens and the infrared core, so that the components of the filter switching mechanism are respectively in place.

[0012] Preferably, the fixed piece and the filter are detachably connected to form a detachable filter assembly, and the filters are independently fixed on the fixed pieces.

[0013] Preferably, the rotating shaft is detachably connected to the filter wheel, and the filter wheel can be independently mounted on the rotating shaft.

[0014] Preferably, the first transmission gear provided on the power output shaft of the steering engine and the second transmission gear provided on the rotating shaft are engaged to realize rotation force transmission.

[0015] Preferably, the plurality of mounting holes provided on the filter wheel are respectively used for mounting different detachable filter assemblies to meet the mounting requirements of multiple filters.

[0016] According to the above technical scheme, compared with the prior art, the beneficial effects of the present application are as follows:

[0017] 1. Automatic switching:

[0018] The steering engine drives the filter wheel to rotate to realize automatic switching of the filter, avoiding the complex operation in the traditional manual replacement process, and significantly improving the system response speed.

[0019] Each filter assembly is automatically and accurately positioned to ensure that the switched filter is accurately in place, thereby improving the accuracy of infrared imaging and temperature measurement.

[0020] Automatic operation reduces the risk of filter wear and damage caused by manual disassembly and assembly, effectively prolonging the service life of the filter and related mechanisms.

[0021] 2. Compact structure:

[0022] The filter switching mechanism is arranged between the infrared lens and the infrared core through the mounting plate, and the components (filter wheel, transmission assembly and detachable filter assembly) are reasonably arranged in the limited space to realize efficient use of the internal space.

[0023] The compact module arrangement not only keeps the entire mechanism small in size, but also facilitates integration into infrared cameras of different specifications while ensuring structural stability, which is conducive to the miniaturization and lightweight design of the product.

[0024] 3. Modular design:

[0025] The detachable filter assembly adopts a fixed plate and filter separation installation mode, so that each filter module is independently detachable, facilitating quick replacement or maintenance when needed without disassembling the entire system.

[0026] The standardized mounting hole design and separation installation mode provide flexibility for the diversification of filter assembly configurations, allowing adjustment of the number or specifications of filters according to actual application requirements to meet the requirements of multi-band imaging and temperature measurement.

[0027] The modular structure facilitates the technical upgrading and optimization of subsequent products, reduces research and maintenance costs, and improves the expandability and compatibility of the system. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on the provided drawings.

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the rear end of the present application.

[0031] Figure 3 It is a schematic diagram of the front structure of the filter switching mechanism of the present application.

[0032] Figure 4 It is a schematic diagram of the internal structure of the present application.

[0033] Figure 5 It is a schematic diagram of the three-dimensional structure inside the filter wheel mechanism of the present application.

[0034] Figure 6The explosion view of the filter piece switching mechanism inside the utility model.

[0035] 1-body, 101-handle, 102-rear cover, 2-infrared lens, 3-mounting plate, 4-infrared core, 5-filter wheel, 501-fixing piece, 502-filter, 503-rudder, 504-first transmission tooth, 505-second transmission tooth, 506-rotating shaft. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0037] EMBODIMENT

[0038] The spectral filter automatic switching mechanism will be described in detail below with reference to the drawings (see the drawings of the specification Figures 1-6 ).

[0039] 1. Overall structure arrangement:

[0040] In the embodiment, the overall structure of the infrared camera comprises a body 1, an infrared lens 2, an infrared core 4, a handle 101 at the upper end of the body 1 and a rear cover 102 away from one end of the infrared lens 2. Among them, the infrared core 4 is fixedly installed in the body 1, the infrared lens 2 is installed at one end of the body 1, and the infrared lens 2 and the infrared core 4 constitute an imaging and temperature measurement system. The handle 101 and the rear cover 102 are located at the upper end of the body 1 and the side away from the infrared lens 2 respectively, as shown in Figure 1 .

[0041] 2. Installation of filter switching mechanism:

[0042] Between the infrared lens 2 and the infrared core 4, the filter switching mechanism is fixedly installed through the mounting plate 3. In the embodiment, the mounting plate 3 is designed to be arranged on both sides: one side is provided with a fixed filter wheel 5 installation position, and the other side is provided with a fixed transmission assembly installation position. In this way, the mounting plate 3 not only ensures the correct position of each component of the filter switching mechanism, but also makes the internal structure of the body 1 compact.

[0043] 3. Filter wheel 5 and detachable filter assembly:

[0044] The filter wheel 5 is installed on the side of the mounting plate 3 close to the infrared lens 2, and a plurality of standard mounting holes are preformed on the filter wheel 5. These mounting holes are used to install the detachable filter assembly. The detachable filter assembly is composed of a fixing piece 501 and a filter 502.

[0045] In the embodiment, each fixed sheet 501 is detachably mounted in the corresponding mounting hole of the filter wheel 5;

[0046] Each fixed sheet 501 is pre-fixedly mounted with a filter 502, but the fixed sheet 501 and the filter 502 are in a separated structure, so as to facilitate separate replacement of the filter 502 in actual use or maintenance.

[0047] 4. Transmission assembly structure and connection:

[0048] The transmission assembly is mounted on the mounting plate 3 close to the infrared core 4, and its main components are a rudder 503, a first transmission gear 504, a second transmission gear 505, and a rotating shaft 506. The specific structure and connection of each component are as follows:

[0049] The rudder 503 is fixedly mounted on the mounting plate 3 close to the infrared core 4, and a first transmission gear 504 is pre-set on the power output shaft of the rudder 503;

[0050] The rotating shaft 506 is provided on the mounting plate 3 and penetrates the mounting plate 3 in the horizontal direction, one end of the rotating shaft 506 is fixedly connected with the filter wheel 5 (the filter wheel 5 is detachably mounted on the rotating shaft 506), and the other end of the rotating shaft 506 is provided with a second transmission gear 505;

[0051] The first transmission gear 504 and the second transmission gear 505 are precisely meshed to realize transmission, so as to ensure that the rotating force output by the rudder 503 is reliably transmitted to the filter wheel 5, thereby enabling the filter wheel to realize accurate positioning and rotation.

[0052] 5. Working principle:

[0053] In actual application, when the infrared camera needs to shoot a specific waveband or requires switching of the filter during temperature measurement, an external control system sends a control signal, and the rudder 503 is started in response to the control signal. The rudder 503 drives the first transmission gear 504 on the power output shaft thereof, the first transmission gear 504 is meshed with the second transmission gear 505 on the rotating shaft 506, the rotating force is transmitted to the rotating shaft 506, and the filter wheel 5 fixedly connected with the rotating shaft 506 is further rotated. The detachable filter assembly installed in the plurality of mounting holes pre-set on the filter wheel 5 is sequentially positioned, and automatic switching of the filter 502 is completed. In this way, cumbersome manual replacement of the filter 502 is avoided, and accurate switching of the filter 502 during infrared imaging and temperature measurement is ensured.

[0054] 6. Structural advantages:

[0055] In the embodiment, each component is reasonably arranged through the mounting plate 3:

[0056] The infrared lens 2 and the infrared core 4 are separated by the mounting plate 3, thereby ensuring the independence of the filter switching mechanism;

[0057] 5 Filter wheel 5 and detachable filter assembly adopt modular design, facilitating replacement and maintenance of the filter;

[0058] The transmission chain structure composed of the steering engine 503, the first transmission tooth 504, the second transmission tooth 505 and the rotating shaft 506 in the transmission assembly makes the transmission of the rotating force stable, and the filter wheel 5 can realize precise positioning rotation.

[0059] 7. Summary of the embodiments:

[0060] In summary, the present embodiment provides a spectral filter automatic switching mechanism installed in an infrared camera. The mechanism sets an installation plate 3 between the infrared lens 2 and the infrared core 4, and fixes the filter wheel 5, the detachable filter assembly (composed of the fixed plate 501 and the filter 502) and the transmission assembly (composed of the steering engine 503, the first transmission tooth 504, the second transmission tooth 505 and the rotating shaft 506) on the installation plate, realizing automatic and accurate switching of the filter. The design has compact structure, convenient installation and stable transmission, and can meet the actual needs of the infrared camera in multi-band imaging and temperature measurement.

[0061] The above description of the disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spectral filter automatic switching mechanism installed in an infrared camera, comprising: Body (1) and infrared lens (2); The infrared machine core (4) is installed in the body (1), the infrared lens (2) is installed at one end of the body (1) and corresponds to the infrared machine core (4), the handle (101) is installed at the upper end of the body (1), and the rear cover (102) is arranged at the end of the body (1) away from the infrared lens (2); It is characterized by further comprising a filter switching mechanism installed between the infrared lens (2) and the infrared machine core (4) through the mounting plate (3); The filter switching mechanism comprises a filter wheel (5), a detachable filter assembly and a transmission assembly; The filter wheel (5) is installed on one side of the mounting plate (3) close to the infrared lens (2) through the transmission assembly, the transmission assembly is located on one side of the mounting plate (3) close to the infrared machine core (4), and the filter wheel (5) is provided with a plurality of mounting holes for installing the detachable filter assembly.

2. The automatic spectral filter switching mechanism for mounting in an infrared camera according to claim 1, characterized in that, The detachable filter assembly comprises a fixed sheet (501) and a filter (502), and the mounting hole of the filter wheel (5) is detachably provided with the fixed sheet (501), and each fixed sheet (501) is fixedly provided with the filter (502).

3. The automatic spectral filter switching mechanism for mounting in an infrared camera according to claim 1, characterized in that, The transmission assembly comprises a rudder (503), a first transmission gear (504), a second transmission gear (505) and a rotating shaft (506); The rudder (503) is installed on one side of the mounting plate (3) close to the infrared machine core (4), the rotating shaft (506) is rotatably connected to the mounting plate (3), the filter wheel (5) is installed on one end of the rotating shaft (506) close to the infrared lens (2), the power output shaft of the rudder (503) is provided with the first transmission gear (504), one end of the rotating shaft (506) close to the infrared machine core (4) is provided with the second transmission gear (505), and the first transmission gear (504) is engaged with the second transmission gear (505).

4. The automatic spectral filter switching mechanism of claim 1, wherein, The mounting plate (3) is provided with a fixed filter wheel mounting part and a fixed transmission assembly mounting part, respectively, and the two are arranged separately.

5. The automatic spectral filter switching mechanism of claim 1, wherein, The mounting plate (3) is fixed between the infrared lens (2) and the infrared machine core (4), and the components of the filter switching mechanism are ensured to be in place respectively.

6. The automatic spectral filter switching mechanism of claim 2, wherein, The fixed sheet (501) and the filter (502) constitute the detachable filter assembly in a separate mounting mode, wherein the filters (502) are independently fixed on the fixed sheets (501) respectively.

7. The automatic spectral filter switching mechanism of claim 3, wherein, The rotating shaft (506) is detachably connected with the filter wheel (5), and the filter wheel (5) can be separately installed on the rotating shaft (506).

8. The automatic spectral filter switching mechanism of claim 3, wherein, The first transmission gear (504) provided on the power output shaft of the rudder (503) and the second transmission gear (505) provided on the rotating shaft (506) are engaged to realize rotation force transmission.

9. The automatic spectral filter switching mechanism of claim 1, wherein, The plurality of mounting holes provided on the filter wheel (5) are used for installing different detachable filter assemblies, so that the installation requirements of multiple filters are met.

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