KR101026828B1 - Shutter module - Google Patents

Abstract

The present invention relates to a shutter module. The shutter module includes a housing in which an opening for opening the lens is formed; A first shutter blade connected to a driving unit mounted to the housing to open and close the opening hole of the housing, and having a first magnet mounted thereon; And a second shutter blade connected to a fixing pin mounted to the housing and interlocked with the first shutter blade to open and close the opening hole of the housing, and having a second magnet having a polarity different from that of the first magnet.

Shutter, blade, camera, magnet

Description

Shutter module

The present invention relates to a shutter module, and more particularly, to a shutter module that can minimize an installation space of a shutter blade, can reduce manufacturing cost by using one driving source, and can shorten close time.

In general, a shutter is a mechanical device that adjusts the amount of light that reaches the image sensor through the lens by adjusting the opening or closing time between the lens and the image sensor.

The shutter speed is a function that is closely related to the movement of the subject to be photographed, and indicates the time when light reaches the image sensor. In other words, when shooting a moving subject, the role of the shutter is very important.

Miniaturized shutters use a single blade to minimize space, but these single blades are only later than multiple blades in time and use less space, but have a problem in terms of close time. .

Specifically, FIG. 1 is an exploded perspective view showing a conventional shutter module, wherein the shutter module includes a housing 1 having an opening 2 for opening a lens and a shutter blade 4 connected to a driving unit installed in the housing. .

In this case, the driving unit includes a motor (not shown) and a driving shaft 3, the shutter blade 4 rotates about the driving shaft 3 as the motor rotates, and the opening hole 2 of the housing. Open and close the

But. In the case of using a plurality of blades, the movement distance is short, so that light may be blocked within a short time, but as the number of blades requires a plurality of power units, there is a problem in that the overall size becomes large.

The technical problem to be achieved by the present invention relates to a shutter module that can minimize the installation space of the shutter blade, can reduce the manufacturing cost by using one drive source, and can shorten the close time.

According to an aspect of the invention, the housing is formed with an opening for opening the lens; A first shutter blade connected to a driving unit mounted to the housing to open and close the opening hole of the housing, and having a first magnet mounted thereon; And a second shutter blade connected to a fixing pin mounted to the housing and interlocked with a first shutter blade to open and close the opening hole of the housing, and a second shutter blade mounted with a second magnet having a different polarity than that of the first magnet. Modules are provided.

Shutter module according to the present invention can minimize the installation space of the shutter blades, it is possible to reduce the manufacturing cost and shorten the closing time by using one drive source.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, the accompanying drawings show an exemplary form of the present invention, which is provided only to describe the present invention in more detail, whereby the technical scope of the present invention is not limited, and the spirit and It is to be understood that all changes, equivalents, and substitutes included in the technical scope are included.

When a component is said to be "connected" or "mounted" to another component, it may be directly connected to or mounted on that other component, but it may be understood that other components may exist in between. Should be.

In addition, terms including an ordinal number such as first or second may be used to describe various components, but the components are not limited by the terms, and the terms are defined by one component from another component. It is used only for the purpose of distinguishing.

Hereinafter, a shutter module according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Regardless of the reference numerals, the same or corresponding components will be given the same reference numerals, and redundant description thereof will be omitted, and the size and shape of each illustrated member may be exaggerated or reduced for convenience of description.

Figure 2 is an exploded perspective view showing a shutter module according to an embodiment of the present invention, Figures 3 and 4 are a plan view of the combined state of the respective components shown in Figure 2, Figures 5 to 7 of the present invention A perspective view illustrating an opening and closing operation of the shutter module according to an embodiment.

The shutter module according to an embodiment of the present invention includes a housing 10, a first shutter blade 22, and a second shutter blade 32.

Here, the opening 10 is formed in the housing 10 to open a lens (not shown), and a driving unit, a lens, and an image including a stationary motor (not shown) and a drive shaft 20 therein. A sensor (not shown) is installed.

In this case, the first shutter blade 22 and the second shutter blade 32 may be installed to adjust the amount of light incident on the lens, or may be installed to adjust the amount of light incident on the image sensor. That is, any position of the housing 10 may be installed as long as it can adjust the amount of light incident to the image sensor through the opening 11.

A first through hole 21 is formed in the first shutter blade 22, and the first through hole 21 and the drive shaft 20 of the driving unit are connected to each other so that the first shutter blade 22 rotates with the drive shaft. Accordingly, the opening hole 11 of the housing 10 is opened and closed.

In addition, a second through hole 31 is formed in the second shutter blade 32, and the second through hole 31 is connected to the fixing pin 30 mounted to the housing, thereby providing a second shutter blade ( 32 opens and closes the opening hole 11 of the housing 10 in cooperation with the first shutter blade 22.

The shutter module according to an embodiment of the present invention may drive a plurality of shutter blades with one driving unit. For this purpose, a first magnet is provided at a free end of the first and second shutter blades 22 and 32. 23 and the second magnet 33 are mounted, respectively, wherein the first magnet 23 and the second magnet 33 have different polarities.

In addition, the first shutter blade 22 and the second shutter blade 32 may have different heights from the mounting surface of the housing 10. That is, the first and second shutter blades 22 and 32 are opposite to each other by the magnetic force of the magnets having different polarities (for example, the first shutter blades 22 are clockwise around the drive shaft 20). When the second shutter blades 32 are rotated in a counterclockwise direction about the fixing pin 30, the second shutter blades 32 are rotated in a counterclockwise direction. In this case, the shutter blades 22 and 32 of the shutter blades In order not to cause mutual interference in the rotational motion, the first shutter blade 22 and the second shutter blade 32 are preferably installed to have a predetermined height difference t1 (see FIG. 5).

On the other hand, the shutter module according to an embodiment of the present invention is formed in the housing 10, the first contacting the outer surface of the first shutter blade 22 and the second shutter blade 32 in the shutter open state, respectively The first stopper 12 and the second stopper 13 may be further included.

At this time, in the shutter open state, the first stopper 12 and the second stopper 13 are in contact with the outer surfaces of the first shutter blade 22 and the second shutter blade 32 respectively (see FIG. 3), and the shutter In the closed state, the second stopper 13 and the first stopper 12 are in contact with inner surfaces of the first shutter blade 22 and the second shutter blade 32, respectively (see Fig. 4).

In addition, the first magnet 23 and the second magnet 33 are mounted on the free ends of the first shutter blade 22 and the second shutter blade 32, respectively, and may overlap in the shutter closing process (FIG. 6), the present invention is not limited thereto, and the mounting positions of the magnets 23 and 33 can be freely determined if the second shutter blades 32 can be moved by magnetic forces having different polarities.

The shutter opening and shutter closing processes of the shutter module having the above structure will be described in detail with reference to the accompanying drawings.

5 to 7, in the shutter opening state, the first shutter blade 22 and the second shutter blade 32 are supported by the first stopper 12 and the second stopper 13 on each outer surface. Stays in the state.

At this time, when the drive shaft 20 is rotated by the motor, the first shutter blade 22 connected to the drive shaft 20 is rotated to a position in which the inner surface thereof is supported by the second stopper 13 in the clockwise direction. .

At this time, as the first shutter blade 22 is rotated to the second shutter blade 32 side, the first magnet 23 and the second magnet 33 have different polarities, so that the second The shutter blades 32 are rotated in the counterclockwise direction, and thus the shutter blades are closed.

As such, the shutter module according to an embodiment of the present invention can drive a plurality of shutter blades as one driving unit, thereby reducing manufacturing cost, minimizing installation space, and shortening close time.

The embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having various ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. Additions should be considered to be within the scope of the following claims.

1 is an exploded perspective view showing a conventional shutter module.

Figure 2 is an exploded perspective view showing a shutter module according to an embodiment of the present invention.

3 and 4 are plan views of the respective components shown in FIG.

5 to 7 are perspective views showing the opening and closing operation of the shutter module according to an embodiment of the present invention.

Claims (4)

A housing formed with an opening for opening the lens; A first shutter blade connected to a driving unit mounted to the housing to open and close the opening hole of the housing, and having a first magnet mounted thereon; And A shutter module connected to a fixing pin mounted to the housing and interlocked with the first shutter blade to open and close the opening hole of the housing, and includes a second shutter blade mounted with a second magnet having a different polarity than that of the first magnet. . The method of claim 1, And a plurality of stoppers formed in the housing in contact with outer surfaces of the first shutter blade and the second shutter blade in the shutter open state. The method of claim 1, The first shutter blade and the second shutter blades are arranged in a different height from the housing. The method of claim 1, The first magnet and the second magnet are mounted on the free ends of the first and second shutter blades, respectively, the shutter module is overlapped in the shutter closing process.

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