CN107991828A - A kind of miniature aperture rotary adjuster for mobile phone - Google Patents

Abstract

The invention discloses a miniature aperture rotary adjuster for a mobile phone, which solves the problem that the aperture on the existing mobile phone often adopts a fixed aperture and cannot be adjusted during depth-of-field shooting and night scene shooting. The invention includes 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, the lower end of the outer cylinder is arranged in the ring seat, the inner cylinder is arranged in the outer cylinder, and the inner cylinder is connected to the outer cylinder. The cylinder is coaxially arranged, the inner cylinder is fixedly connected to the base, and the cylindrical light-shielding film is arranged on the upper end between the outer cylinder and the inner cylinder. The lower end of the elastic light-shielding film is fixedly connected with the upper end of the inner cylinder, the upper end of the non-elastic light-shielding 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 outer teeth mesh with the worm, the worm is connected with the output shaft of the motor, and the motor Fixed on the base. The invention is used in mobile phones.

Description

A miniature aperture rotary regulator for mobile phones

technical field

The invention relates to a blade type aperture, in particular to a miniature aperture rotary regulator for a mobile phone.

Background technique

Today, with such advanced technology, mobile phones originally used as communication tools have also been endowed with more entertainment functions. The camera effect of mobile phones is often one of the most concerned aspects of many players. And the phone is not just a camera tool. Its main purpose is to make calls and send text messages, so we usually carry mobile phones with us. In terms of convenience, mobile phones are obviously higher than cameras.

However, compared with cameras, mobile phones still have some disadvantages that are difficult to overcome: the mobile phone camera has no 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 size cannot be adjusted. The function of aperture in controlling light and shadow is irreplaceable. At present, the aperture for mobile phones only has a fixed aperture with a round hole, while professional cameras generally use iris-shaped apertures (belonging to blade apertures), which are composed of multiple overlapping arc-shaped metal sheets. The clutch of the blades can change the size of the central aperture, but the aperture is made of metal sheet, which is bulky, thick, and consumes a lot of energy. As a portable handheld device, mobile phones have strict requirements on overall volume, thickness, and power consumption. Therefore, the blade aperture is not suitable for mobile phones, and mobile phones can only use fixed apertures. However, the size of the fixed aperture cannot be adjusted and has limitations. Therefore, it cannot meet the shooting needs in terms of depth of field adjustment, night scene shooting, and long exposure.

Contents of the invention

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

A miniature aperture rotary regulator for mobile phones of the present invention comprises a base, an outer cylinder, an inner cylinder, a cylindrical light-shielding film, a worm, and a motor. The base is provided with a circular seat, and the lower end of the outer cylinder Set in the ring seat, the inner cylinder is set in the outer cylinder, the inner cylinder and the outer cylinder are arranged coaxially, the inner cylinder and the base are fixed, 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 a non-elastic light-shielding film, the lower end of the elastic light-shielding film is fixedly connected with the upper end of the inner cylinder, the upper end of the non-elastic light-shielding film is fixedly connected with 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 with 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 applied to a mobile phone, the size of the aperture is controllable and adjustable, which solves the problem of being unable to adjust the depth of field and night scene shooting.

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

Three, because the volume of the present invention is small, so energy consumption is low, so the energy consumption of drive motor is relatively low.

Description of drawings

Fig. 1 is a kind of micro-aperture rotary adjuster overall structure main sectional view for mobile phone of the present invention (marker 7 among the figure is camera module);

Fig. 2 is the top view of Fig. 1;

Fig. 3 is a schematic structural view of a cylindrical light-shielding film 4;

Fig. 4 shows that when the cylindrical light-shielding film 4 is in a relaxed state, the ratio of the length L1 of the elastic light-shielding film to the length L2 of the non-elastic light-shielding film is 1:1, and the adjuster is at the maximum aperture state;

Fig. 5 shows that the cylindrical light-shielding film 4 is in a fully stretched state, the ratio of the length L1 of the elastic light-shielding film to the length L2 of the non-elastic light-shielding film is 2:1, and the adjuster is in the minimum aperture state at this time.

Detailed ways

Specific Embodiment 1: This embodiment will be described with reference to FIGS. 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 Seat 1-1, the lower end of the outer cylinder 2 is set in the ring seat 1-1, the outer cylinder 2 can rotate in the ring 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 on 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 shading film 4-2, the lower end of the elastic shading film 4-1 is fixedly connected with the upper end of the inner tube 3, the upper end of the non-elastic shading film 4-2 is fixedly connected with the upper end of the outer tube 2, and the outer tube 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 fixed on the base 1. Motor 6 is a micro stepping motor, which is a commercially available product, and its model is ZWBMD003003.

Specific Embodiment 2: This embodiment is 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 connections are the same as those in the first embodiment.

Specific Embodiment Three: This embodiment is described with reference to FIG. 1 and FIG. 2 . Both the outer cylinder 2 and the inner cylinder 3 of this embodiment are circular. Other compositions and connections are the same as those in Embodiment 1 or 2.

Working principle of the present invention:

Adjustment of small aperture: The central processing unit of the mobile phone automatically selects the most suitable 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 Turn, the outer cylinder 2 rotates counterclockwise, the inner cylinder 3 remains fixed, and the elastic light-shielding film 4-1 is elongated to form a small aperture, as shown in FIG. 5 .

Large aperture adjustment: The central processor of the mobile phone automatically selects the most suitable 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 Turn, 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 FIG. 4 .

Claims (3)

1. A micro-diaphragm rotary regulator for mobile phones, characterized in that: the rotary micro-adjustment diaphragm comprises 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 seat (1-1), the lower end of the outer cylinder (2) is set in the ring seat (1-1), and the inner The cylinder (3) is arranged in the outer cylinder (2), the inner cylinder (3) is arranged coaxially with the outer cylinder (2), the inner cylinder (3) is fixedly connected to the base (1), and the cylindrical light-shielding film (4) is arranged in the outer cylinder (2) and the upper end between the inner cylinder (3), the lower part of the cylindrical light-shielding film (4) is an elastic light-shielding film (4-1), and the upper part of the cylindrical light-shielding film (4) is an inelastic light-shielding film (4-1). 2), the lower end of the elastic shading film (4-1) is fixedly connected to the upper end of the inner cylinder (3), the upper end of the non-elastic shading film (4-2) is fixedly connected to the upper end of the outer cylinder (2), and the outer cylinder (2) The outer 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 fixed on the base (1 )superior. 2. A micro aperture rotary regulator for mobile phones according to claim 1, characterized in that: the height of the inner cylinder (3) is smaller than the height of the outer cylinder (2). 3. A micro-diaphragm rotary regulator for mobile phones according to claim 1 or 2, characterized in that: both the outer cylinder (2) and the inner cylinder (3) are circular.