CN219179758U

CN219179758U - Three-channel optical filter conversion module

Info

Publication number: CN219179758U
Application number: CN202223486840.2U
Authority: CN
Inventors: 杨雪; 严小超; 陈菲; 谭婷; 吴宜强; 张邵林; 王家财; 唐美; 胥铭峰
Original assignee: Chongqing TS Precision Technology Co Ltd
Current assignee: Chongqing TS Precision Technology Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-13
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a three-channel optical filter conversion module, which is characterized in that: including light filter carrier, casing, motor drive system, there is narrowband light filter, white slide, infrared cut-off light filter along length direction closely arranged on the light filter carrier, and the light filter carrier slides and sets up on the casing, has the camera lens mounting hole on the casing, and motor drive system sets up in the casing, is provided with the rocking arm on the motor drive system, and the shifting pin of rocking arm one end is spacing in the draw-in groove of light filter carrier tip, and the rocking arm swings and drives the light filter carrier and remove for alignment camera lens mounting hole behind narrowband light filter, the white slide, the infrared cut-off light filter switch. The beneficial effects of the utility model include: the three filters with the narrow-band filter, the white glass and the infrared cut-off filter are mounted, and the three-filter converter has the advantages of convenience and high efficiency in assembly, novel structural design and contribution to realization of automatic assembly, so that the degree of automation and the generalization of similar products are improved.

Description

Three-channel optical filter conversion module

Technical Field

The utility model relates to the field of camera modules, in particular to a three-channel optical filter conversion module.

Background

With the popularization of intelligent products, cameras are not only used on mobile phones, but also applied to intelligent home, unmanned aerial vehicles, intelligent security cameras, face recognition and the like, and besides, the cameras are also applied to industrial fields, medical and health fields, building fields, military fields and the like;

along with the increase of the application fields of cameras, the functional requirements on the cameras are higher and higher, so that the cameras in part of fields are required to work for 24 hours in all weather, and the cameras are required to work normally at night or under the condition of insufficient light.

At present, an optical filter is added in front of a camera, wherein an ICR optical filter switcher is used for realizing the all-weather work of the camera for 24 hours by switching the optical filter to a narrow-band optical filter at night and switching the optical filter to an infrared cut-off optical filter in daytime. The function of the narrow-band filter is to cut off visible light and allow infrared light in a specific wave band to pass through; the infrared cut-off filter has the function of cutting off invisible light which cannot be seen by human eyes and transmitting visible light of human eyes. The ICR optical filter switcher is widely applied to security cameras, but the existing ICR optical filter switcher can only realize the switching of two groups of optical filters and can not realize the switching of more optical filters, if three optical filters are to be realized, the structure is more complex, the realization difficulty is high, driving equipment is required to be increased, the size of a camera module is increased, and the automatic switching of the three optical filters can not be realized.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a three-channel optical filter conversion module, which is provided with three optical filters of different use scenes, namely a narrow-band optical filter, a white glass and an infrared cut-off optical filter, so that the problem that a camera achieves a normal imaging effect in different environments is solved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a three-channel optical filter conversion module is characterized in that: including light filter carrier, casing, motor drive system, light filter carrier is last to be followed length direction and is closely arranged narrowband light filter, white slide, infrared cut-off filter, light filter carrier slide set up in on the casing, have the camera lens mounting hole on the casing, motor drive system set up in the casing, be provided with the rocking arm on the motor drive system, the group needle limit of rocking arm one end is located in the draw-in groove of light filter carrier tip, the rocking arm swing drives light filter carrier removes for narrowband light filter, white slide, infrared cut-off filter switch back alignment the camera lens mounting hole.

Further, the shell is in a convex shape, one end of the shell is provided with a guide rail limiting the filter carrier, and the other end of the shell is provided with a mounting groove for mounting the motor driving system.

Further, the motor driving system comprises a U-shaped iron, a ring magnet and a coil, wherein the U-shaped iron is opened leftwards, a positioning column is arranged on the left side of the mounting groove, the ring magnet is positioned on the positioning column, the left end of the U-shaped iron is sleeved on the outer side of the ring magnet, the coil is wound on a side arm of the U-shaped iron, and the other end of the rocker arm is connected with the end part of the ring magnet.

Further, the clamping grooves are waist-shaped grooves which are transversely arranged.

The beneficial effects of the utility model include: the three filters with the narrow-band filter, the white glass and the infrared cut-off filter are mounted, and the three-filter converter has the advantages of convenience and high efficiency in assembly, novel structural design and contribution to realization of automatic assembly, so that the degree of automation and the generalization of similar products are improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a filter carrier structure according to the present utility model;

FIG. 3 is a schematic view of the housing structure of the present utility model;

FIG. 4 is a schematic view of the U-shaped iron structure of the present utility model;

fig. 5 is a schematic view of the rocker arm structure of the present utility model.

Detailed Description

The utility model will be described in further detail with reference to specific embodiments and drawings.

A three-channel filter conversion module as shown in fig. 1-5 comprises a filter carrier 1, a shell 5 and a motor driving system 6, wherein a narrow-band filter 2, a white glass slide 3 and an infrared cut filter 4 are closely arranged on the filter carrier 1 along the length direction. The casing 5 is in a convex shape, one end of the casing is provided with a guide rail of the limit filter carrier 1 at the upper part, and the other end of the casing is provided with a mounting groove for mounting the motor driving system 6. The filter carrier 1 is slidably disposed on the housing 5, and the housing 5 has a lens mounting hole 51. The motor drive system 6 is arranged in the mounting groove of the shell 5, the motor drive system 6 is provided with a rocker arm 7, a poking needle at one end of the rocker arm 7 is limited in a clamping groove 11 at the end part of the optical filter carrier 1, and the clamping groove 11 is a waist-shaped groove which is transversely arranged. The rocker arm 7 swings to drive the filter carrier 1 to move, so that the narrow-band filter 2, the white glass slide 3 and the infrared cut filter 4 are aligned with the lens mounting hole 51 after being switched, and the switching among the three filters is realized.

As shown in fig. 1, 4 and 5, the motor drive system 6 includes a U-shaped iron 61, a ring magnet 62 and a coil 63, wherein the open end of the U-shaped iron 61 is left and the closed end is right and is laterally arranged in the mounting groove. The left side of the mounting groove is provided with a positioning column 52, the annular magnet 62 is rotatably positioned on the positioning column 52, the left end of the U-shaped iron 61 is sleeved on the outer side of the annular magnet 62, the coil 63 is wound on an arm of the U-shaped iron 61, which is close to the side of the optical filter, and the other end of the rocker arm 7 is connected with the end part of the annular magnet 62.

The working principle of the utility model is that the motor driving system 6 changes the magnetism of the U-shaped iron 61 according to the upper coil 63 according to the electrifying condition, thereby attracting the ring magnet 62 to rotate in one direction, the rocker 7 swings due to the connection of the rocker 7 with the ring magnet 62, the poking needle at the end part of the rocker 7 pokes the optical filter carrier 1 to move along the guide rail, and the poking needle and the clamping groove 11 can be in sliding fit, so that the swing of the rocker 7 is converted into the translational motion of the optical filter carrier 1, thereby realizing the alignment of the switching narrow-band optical filter 2, the white glass 3 and the infrared cut-off optical filter 4 with the lens mounting hole 51.

The foregoing has described in detail the technical solutions provided by the embodiments of the present utility model, and specific examples have been applied to illustrate the principles and implementations of the embodiments of the present utility model, where the above description of the embodiments is only suitable for helping to understand the principles of the embodiments of the present utility model; meanwhile, as for those skilled in the art, according to the embodiments of the present utility model, there are variations in the specific embodiments and the application scope, and the present description should not be construed as limiting the present utility model.

Claims

1. A three-channel optical filter conversion module is characterized in that: including light filter carrier (1), casing (5), motor drive system (6), light filter carrier (1) is gone up along length direction closely arranged has narrowband light filter (2), white slide (3), infrared cut-off light filter (4), light filter carrier (1) slide set up in on casing (5), have lens mounting hole (51) on casing (5), motor drive system (6) set up in casing (5), be provided with rocking arm (7) on motor drive system (6), the poking pin limit of rocking arm (7) one end is located in draw-in groove (11) of light filter carrier (1) tip, rocking arm (7) swing drives light filter carrier (1) remove for alignment behind narrowband light filter (2), white slide (3), the infrared cut-off light filter (4) switch lens mounting hole (51).

2. The three-way filter conversion module of claim 1, wherein: the shell (5) is in a convex shape, one end upper part of the shell is provided with a guide rail limiting the optical filter carrier (1), and the other end of the shell is provided with a mounting groove for mounting the motor driving system (6).

3. The three-way filter conversion module of claim 2, wherein: the motor driving system (6) comprises a U-shaped iron (61), a ring-shaped magnet (62) and a coil (63), wherein the U-shaped iron (61) is opened leftwards, a positioning column (52) is arranged on the left side of the mounting groove, the ring-shaped magnet (62) is positioned on the positioning column (52), the left end of the U-shaped iron (61) is sleeved on the outer side of the ring-shaped magnet (62), the coil (63) is wound on a side arm of the U-shaped iron (61), and the other end of the rocker arm (7) is connected with the end part of the ring-shaped magnet (62).

4. The three-way filter conversion module of claim 1, wherein: the clamping grooves (11) are waist-shaped grooves which are transversely arranged.