CN107991828B - Miniature aperture rotary regulator for mobile phone - Google Patents

Abstract

A miniature aperture rotary adjuster for a mobile phone is used for solving the problem that an aperture on the existing mobile phone often adopts a fixed aperture and cannot be adjusted during field shooting and night shooting. The invention comprises a base, an outer cylinder, an inner cylinder, a cylindrical shading film, a worm and a motor, wherein the base is provided with a circular ring seat, the lower end of the outer cylinder is arranged in the circular ring seat, the inner cylinder is arranged in the outer cylinder, the inner cylinder and the outer cylinder are coaxially arranged, the inner cylinder is fixedly connected with the base, the cylindrical shading film is arranged at the upper end between the outer cylinder and the inner cylinder, the lower part of the cylindrical shading film is an elastic shading film, the upper part of the cylindrical shading film is an inelastic shading film, the lower end of the elastic shading film is fixedly connected with the upper end of the inner cylinder, the upper end of the inelastic shading film is fixedly connected with the upper end of the outer cylinder, the outer surface of the outer cylinder is provided with external teeth, the external teeth are meshed with the worm, the worm is connected with an output shaft of the motor, and the motor is fixedly arranged on the base. The invention is used for the mobile phone.

Description

A micro aperture rotary adjuster for mobile phones

Technical field

The invention relates to a blade-type aperture, and in particular to a micro-aperture rotary adjuster for mobile phones.

Background technique

Today, when technology is so advanced, mobile phones, which were originally used as communication tools, have also been given more entertainment functions. The camera effect of mobile phones is often an aspect that many players pay most attention to. And the mobile phone is not just a camera tool. Its main purpose is to make calls and send text messages, so we usually carry our mobile phones with us. In terms of convenience, mobile phones are obviously superior to cameras.

However, compared with cameras, mobile phones still have some disadvantages that are difficult to overcome: namely, the mobile phone camera does not have an aperture adjuster.

Light and shadow are the soul of photography, so the choice of light has always been very important. The camera of the mobile phone is relatively simple, and the aperture cannot be adjusted. The function of aperture in controlling light and shadow is irreplaceable. At present, the aperture used in mobile phones only has a fixed aperture with a circular hole, while professional cameras generally use iris-type apertures (belonging to blade apertures). The iris-type aperture is composed of multiple overlapping arc-shaped metal plates. The clutch of the blade can change the size of the central aperture, but the aperture is made of metal sheets. This aperture is large, thick, and consumes high energy. As a portable handheld device, mobile phones have strict requirements on overall volume, thickness, and power consumption. Therefore, blade aperture is not suitable for mobile phones, which can only use fixed apertures. However, the size of the fixed aperture is not adjustable and has limitations. Therefore, it cannot meet shooting needs in depth of field adjustment, night scene shooting, long exposure, etc.

Contents of the invention

In order to solve the problem that the aperture on existing mobile phones often adopts a fixed aperture and cannot be adjusted during depth-of-field shooting and night scene shooting, the present invention provides a micro-aperture rotary adjuster for mobile phones.

The present invention is a micro aperture rotary adjuster for mobile phones, which consists of a base, an outer cylinder, an inner cylinder, a cylindrical light-shielding film, a worm and a motor. The base is provided with a ring seat, and the lower end of the outer cylinder It is arranged in the annular seat, the inner cylinder is arranged in the outer cylinder, the inner cylinder and the outer cylinder are arranged coaxially, the inner cylinder is fixedly connected to the base, the cylindrical light-shielding film is arranged at the upper end between the outer cylinder and the inner cylinder, and the cylindrical light-shielding film The lower part is an elastic light-shielding film, the upper part of the cylindrical light-shielding film is an inelastic light-shielding film, the lower end of the elastic light-shielding film is fixedly connected to the upper end of the inner cylinder, the upper end of the inelastic light-shielding film is fixedly connected to the upper end of the outer cylinder, and the outer surface of the outer cylinder is provided with The external teeth mesh with the worm, the worm is connected to the output shaft of the motor, and the motor is fixed on the base.

Compared with the prior art, the present invention has the following beneficial effects:

1. When the present invention is used on a mobile phone, the aperture size can be controlled and adjusted, which solves the problem of being unable to adjust the depth of field when shooting and night scene shooting.

2. The volume of the present invention is smaller than that of the blade aperture, and has little impact on the thickness of the camera module; the structure of the present invention is simple and reliable, and there are no complicated blades to control.

3. Due to the small size of the present invention, the energy consumption is low, so the energy consumption of the driving motor is low.

Description of the drawings

Figure 1 is a main cross-sectional view of the overall structure of a miniature aperture rotary adjuster for mobile phones of the present invention (number 7 in the figure is the camera module);

Figure 2 is a top view of Figure 1;

Figure 3 is a schematic structural diagram of the cylindrical light-shielding film 4;

Figure 4 shows the cylindrical light-shielding film 4 in a relaxed state. The ratio of the length L1 of the elastic light-shielding film to the length L2 of the inelastic light-shielding film is 1:1. At this time, the adjuster is in the maximum aperture state;

Figure 5 shows the cylindrical light-shielding film 4 in a fully stretched state. The ratio of the length L1 of the elastic light-shielding film to the length L2 of the inelastic light-shielding film is 2:1. At this time, the adjuster is in the minimum aperture state.

Detailed ways

Specific Embodiment 1: This embodiment will be described with reference to Figures 1 to 3. This embodiment includes a base 1, an outer cylinder 2, an inner cylinder 3, a cylindrical light-shielding film 4, a worm 5 and a motor 6. The base 1 is provided with a ring. The lower end of the outer cylinder 2 is set in the annular seat 1-1. The outer cylinder 2 can rotate in the annular seat 1-1. The inner cylinder 3 is arranged in the outer cylinder 2. The inner cylinder 3 and the outer cylinder 2 Coaxially arranged, the inner cylinder 3 is fixedly connected to the base 1, the cylindrical light-shielding film 4 is arranged at the upper end between the outer cylinder 2 and the inner cylinder 3, the lower part of the cylindrical light-shielding film 4 is an elastic light-shielding film 4-1, and the cylindrical light-shielding film 4 The upper part of 4 is a non-elastic light-shielding film 4-2. The lower end of the elastic light-shielding film 4-1 is fixedly connected to the upper end of the inner cylinder 3. The upper end of the non-elastic light-shielding film 4-2 is fixedly connected to the upper end of the outer cylinder 2. The surface is provided with external teeth 2-1, the external teeth 2-1 mesh with the worm 5, the worm 5 is connected with the output shaft of the motor 6, and the motor 6 is fixedly mounted on the base 1. Motor 6 is a micro stepper motor, which is a commercially available product, and its model number is ZWBMD003003.

Specific Embodiment 2: This embodiment will be described with reference to FIG. 1 . In this embodiment, the height of the inner cylinder 3 is smaller than the height of the outer cylinder 2 . Other components and connection relationships are the same as in the first embodiment.

Specific Embodiment 3: This embodiment will be described with reference to Figures 1 and 2. In this embodiment, both the outer cylinder 2 and the inner cylinder 3 are circular. Other components and connection relationships are the same as those in the first or second embodiment.

Working principle of the invention:

Adjustment of small aperture: The central processor of the mobile phone automatically selects the most appropriate aperture value according to the signal received by the image sensor, and sends the corresponding control command to the motor 6. The motor 6 rotates forward, the motor 6 drives the worm 5, and the worm 5 drives the outer cylinder 2 Rotate, the outer cylinder 2 rotates counterclockwise, the inner cylinder 3 remains fixed, and the elastic light-shielding film 4-1 is stretched to form a small aperture, as shown in Figure 5.

Adjustment of the large aperture: The central processor of the mobile phone automatically selects the most appropriate aperture value according to the signal received by the image sensor, and sends the corresponding control command to the motor 6. The motor 6 reverses, the motor 6 drives the worm 5, and the worm 5 drives the outer cylinder 2 Rotate, the outer cylinder 2 rotates clockwise, the inner cylinder 3 remains fixed, and the elastic light-shielding film 4-1 shrinks to form a large aperture, as shown in Figure 4.

Claims (3)

1. A miniature aperture rotary adjuster for a cell phone, characterized by: the miniature aperture rotary adjuster for the mobile phone comprises a base (1), an outer cylinder (2), an inner cylinder (3), a cylindrical shading film (4), a worm (5) and a motor (6), wherein the base (1) is provided with a circular ring seat (1-1), the lower end of the outer cylinder (2) is arranged in the circular ring seat (1-1), the inner cylinder (3) is arranged in the outer cylinder (2), the inner cylinder (3) and the outer cylinder (2) are coaxially arranged, the inner cylinder (3) is fixedly connected with the base (1), the cylindrical shading film (4) is arranged at the upper end between the outer cylinder (2) and the inner cylinder (3), the lower part of the cylindrical shading film (4) is an elastic shading film (4-1), the lower end of the cylindrical shading film (4-1) is fixedly connected with the upper end of the inner cylinder (3), the upper end of the inelastic shading film (4-2) is fixedly connected with the upper end of the outer cylinder (2), the outer tooth (2-1) is arranged on the outer surface of the outer cylinder (2), the outer tooth (5-5) is fixedly connected with the motor (6) and the output shaft (6) is fixedly connected with the worm (1).

2. The micro diaphragm rotation type adjuster for a mobile phone according to claim 1, wherein: the height of the inner cylinder (3) is smaller than that of the outer cylinder (2).

3. A micro diaphragm rotation type adjuster for a mobile phone according to claim 1 or 2, wherein: the outer cylinder (2) and the inner cylinder (3) are both round.