Polarized lens cut-in, cut-out and rotation mechanism based on optical camera

Abstract

The utility model relates to a polarized lens cut-in, cut-out and autorotation mechanism based on an optical camera, and aims to solve the problem that the imaging quality is influenced by stray light of the optical camera in a photoelectric pod in a complex environment and ensure the light incoming amount of the camera in a general environment. When the polarized lens cutting-in and cutting-out device works, the cutting-in and cutting-out motor drives the cutting-in and cutting-out driving gear to rotate so as to drive the target wheel and the self-rotating lens cone and the flat lens which are arranged on the target wheel to rotate, so that cutting-in and cutting-out of the polarized lens are realized; when the polarized lens is cut into a light path, the rotation driving motor drives the rotation driving gear to rotate so as to drive the transmission gear and further drive the rotation lens cone and the polarized lens installed in the rotation lens cone to rotate, thereby realizing rotation of the polarized lens.

Description

Technical Field

[0001] The utility model relates to a camera lens switching device, in particular to a polarization lens cutting-in / cutting-out and self-rotation mechanism based on an optical camera. Background Art

[0002] With the continuous expansion of the use range of optoelectronic pods, they are vulnerable to stray light in some complex environments, resulting in poor imaging quality. For example, when a traditional optoelectronic pod observes on the sea surface, the light reflected by the sea surface will greatly affect the imaging quality of the optical camera inside the optoelectronic pod, and this factor has become one of the main factors restricting the observation of optoelectronic pods. In the prior art, it is usually to install a polarization lens in front of the camera lens to partially eliminate the polarized reflected light on the surface of the photographed object, thereby greatly reducing the adverse effects such as glare and reflection, and at the same time optimizing the color quality and detail information of the image. However, the polarization lens is generally good at filtering the reflected light with an incident polarization direction and a reflected polarization direction with an included angle of 90°, but it is a bit ineffective for the reflected light with an included angle of the polarization direction close to 180°. In addition, the polarization lens will inevitably reduce the light input amount during use and also reduce the imaging quality. Content of the Utility Model

[0003] The main purpose of the utility model is to solve the problem that the optical camera inside the optoelectronic pod is affected by stray light in some complex environments and the imaging quality deteriorates, and at the same time ensure the light input amount of the camera in general environments, so as to provide a polarization lens cutting-in / cutting-out and self-rotation mechanism based on an optical camera.

[0004] The concept of the utility model is: to propose a reliable and easy-to-integrate polarization lens self-rotation and cutting-in / cutting-out mechanism, which can filter the reflected light at any angle through the self-rotation of the polarization lens during use, and can cut out the polarization lens from the optical path when not needed, thereby improving the image quality in different usage modes.

[0005] To achieve the above purpose and complete the above concept, the utility model provides the following technical solutions:

[0006] A polarization lens cutting-in / cutting-out and self-rotation mechanism based on an optical camera, including a box body, and the special feature is that:

[0007] It further includes a cutting-in / cutting-out motor and a self-rotation driving motor fixed on the box body, and the output shafts of both penetrate to the front side of the box body; a cutting-in / cutting-out driving gear is fixed on the output shaft of the cutting-in / cutting-out motor; a self-rotation driving gear is fixed on the output shaft of the self-rotation driving motor;

[0008] A rotating shaft is also fixedly installed on the box body, a target wheel is arranged on the rotating shaft, and the target wheel is engaged with the cutting-in / cutting-out driving gear through the teeth on it;

[0009] A rotating mirror barrel and a flat lens are provided on the target wheel. The rotating mirror barrel is rotationally engaged with the target wheel, and gear teeth are designed on the rotating mirror barrel; the polarization lens is installed in the rotating mirror barrel; the flat lens is arranged outside the rotating mirror barrel.

[0010] A transmission gear is further provided on the rotating shaft. The transmission gear is respectively engaged with the gear teeth on the rotating mirror barrel and the self-rotation driving gear, and is located on the front side of the target wheel.

[0011] Both the cutting-in and cutting-out motor and the self-rotation driving motor are connected to an external control device.

[0012] Further, the transmission ratio among the self-rotation driving gear, the transmission gear, and the gear teeth of the rotating mirror barrel is 1:2:1.

[0013] Further, a plurality of ball bearings are provided between the target wheel and the rotating mirror barrel. The rotating mirror barrel and the target wheel are rotationally engaged through the ball bearings.

[0014] Further, both the cutting-in and cutting-out motor and the self-rotation driving motor are servo motors.

[0015] Further, the target wheel and the transmission gear are separated by a gasket.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. A polarization lens cutting-in and cutting-out and self-rotation mechanism based on an optical camera proposed by the present utility model adds a polarization mode to a conventional lens, which can solve the imaging quality problems caused by polarized reflected light in environments such as the sea surface and snow mountains for a conventional lens, meets the application requirements in complex airborne environments, and combines the advantages of a conventional lens and a polarization lens, improving the environmental adaptability of a television in different scenarios.

[0018] 2. A polarization lens cutting-in and cutting-out and self-rotation mechanism based on an optical camera proposed by the present utility model realizes the automatic cutting-in and cutting-out of the polarization film and the self-rotation of the polarization film. While obtaining excellent imaging quality, by setting the transmission ratio among the gears, the rotation angle of the output shaft of the self-rotation driving motor is equal to the polarization angle, and the rotation angle is fed back to the monitoring platform through a controller, achieving the purpose of real-time monitoring of the polarization angle.

[0019] 3. A polarization lens cutting-in and cutting-out and self-rotation mechanism based on an optical camera proposed by the present utility model is conducive to realizing system integration and reducing the difficulty of opto-mechanical integration; and is easy to replace and repair, improving the replaceability and product reliability. Description of the Drawings

[0020] Figure 1 It is an axonometric drawing of an embodiment of the present utility model.

[0021] Figure 2 This is a front view structural schematic diagram of one side of the polarization lens in the embodiment of the present utility model;

[0022] Figure 3 This is a structural schematic diagram of the target wheel and the components arranged thereon in the embodiment of the present utility model, where (a) is a front view and (b) is a sectional view taken along the A-A direction;

[0023] Figure 4 This is a schematic diagram of the working position inside the optical camera in the embodiment of the present utility model; where (a) is an external view of the optical camera and the box body applied in the embodiment of the present utility model, and (b) is a schematic diagram of the installation position inside the optical camera shown in (a) in the embodiment of the present utility model.

[0024] Explanation of reference numerals:

[0025] 1 - Infeed and outfeed drive gear; 2 - Self-rotation drive gear; 5 - Flat lens; 6 - Polarization lens; 7 - Self-rotation lens barrel; 8 - Transmission gear; 10 - Target wheel; 11 - Box body; 12 - Rotating shaft; 13 - Ball; A - Infeed and outfeed motor; B - Self-rotation drive motor. Detailed implementation manners

[0026] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] A polarization lens infeed and outfeed and self-rotation mechanism based on an optical camera provided by the present utility model, as Figure 1 shown, includes a box body 11, and an infeed and outfeed motor A and a self-rotation drive motor B fixed on the box body 11. Both the infeed and outfeed motor A and the self-rotation drive motor B are servo motors, and both are connected to an external control device; the output shafts of the infeed and outfeed motor A and the self-rotation drive motor B both extend to the front side of the box body 11; the infeed and outfeed drive gear 1 is fixed on the output shaft of the infeed and outfeed motor A by a set screw, and the self-rotation drive gear 2 is fixed on the output shaft of the self-rotation drive motor B by a set screw;

[0028] The rotating shaft 12 is fixedly installed on the box body 11; the target wheel 10 is arranged on the rotating shaft 12 and meshes with the infeed and outfeed drive gear 1 through the teeth provided thereon; the target wheel 10 is further provided with a self-rotation lens barrel 7 and a flat lens 5, where the self-rotation lens barrel 7 is provided with teeth; a polarization lens 6 is further installed in the self-rotation lens barrel 7, and the flat lens 5 is arranged outside the self-rotation lens barrel 7; a transmission gear 8 is further arranged on the front side of the target wheel 10, the transmission gear 8 meshes with the self-rotation drive gear 2, and is installed on the rotating shaft 12 together with the target wheel 10; the transmission ratio among the teeth of the self-rotation drive gear 2, the transmission gear 8 and the self-rotation lens barrel 7 is 1:2:1.

[0029] As Figure 2As shown, a plurality of balls 13 are provided between the target wheel 10 and the rotating lens barrel 7. When the mechanism is working, the sliding friction between the target wheel 10 and the rotating lens barrel 7 can be converted into rolling friction, thereby avoiding jamming between the target wheel 10 and the rotating lens barrel 7 and affecting the normal operation of the mechanism.

[0030] Figure 4 The specific installation location of this mechanism in an optical camera is given. In actual application, an external control device controls the operation of the cut-in / cut-out motor A, which drives the cut-in / cut-out drive gear 1, driving the target wheel 10, the rotating lens barrel 7 mounted thereon, and the flat lens 5 to rotate, thereby achieving the cut-in / cut-out of the polarized lens. The polarized lens rotates by relying on the external control device to control the rotation drive motor B. The rotation drive motor B drives the rotation drive gear 2, which drives the transmission gear 8. This, in turn, drives the rotating lens barrel 7 and the polarized lens 6 mounted therein to rotate via the gear teeth on the rotating lens barrel 7, thereby achieving the rotation of the polarized lens.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. For ordinary professional and technical personnel in this field, the specific technical solutions recorded in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions protected by the present invention.

Claims

1. A polarized lens cutting-in, cutting-out and self-rotating mechanism based on an optical camera, comprising a box (11), characterized in that: It also includes a cut-in / cut-out motor (A) and a self-rotation drive motor (B) fixed on the box body (11), and the output shafts of both extend out to the front side of the box body (11); a cut-in / cut-out drive gear (1) is fixed on the output shaft of the cut-in / cut-out motor (A); and a self-rotation drive gear (2) is fixed on the output shaft of the self-rotation drive motor (B); A rotating shaft (12) is fixedly mounted on the housing (11), a target wheel (10) is provided on the rotating shaft (12), and the target wheel (10) is meshed with the cutting-in and cutting-out driving gear (1) through the gear teeth thereon; The target wheel (10) is provided with a rotating lens barrel (7) and a flat lens (5), the rotating lens barrel (7) and the target wheel (10) are rotationally matched, and the rotating lens barrel (7) is designed with gear teeth; the polarizing lens (6) is installed in the rotating lens barrel (7); the flat lens (5) is arranged on the outside of the rotating lens barrel (7); The rotating shaft (12) is also provided with a transmission gear (8), which is respectively engaged with the gear teeth on the rotating lens barrel (7) and the rotation driving gear (2), and is located in front of the target wheel (10); The cut-in / cut-out motor (A) and the self-rotation drive motor (B) are both connected to an external control device.

2. The polarizing lens cutting-in, cutting-out and self-rotating mechanism based on an optical camera according to claim 1, characterized in that: The transmission ratio between the gear teeth of the self-rotating driving gear (2), the transmission gear (8) and the self-rotating lens barrel (7) is 1:2:

1.

3. The polarizing lens cutting-in, cutting-out and self-rotating mechanism based on an optical camera according to claim 1, characterized in that: A plurality of balls (13) are provided between the target wheel (10) and the rotating lens barrel (7), and the rotating lens barrel (7) and the target wheel (10) are rotated together via the balls (13).

4. The polarizing lens cutting-in, cutting-out and self-rotating mechanism based on an optical camera according to any one of claims 1 to 3, characterized in that: The cut-in / cut-out motor (A) and the self-rotation drive motor (B) are both servo motors.

5. The polarizing lens cutting-in, cutting-out and self-rotating mechanism based on an optical camera according to claim 4, characterized in that: The target wheel (10) and the transmission gear (8) are separated by a gasket.

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