JP3150366U - Optical filter member - Google Patents

Abstract

An optical filter member capable of preventing coil wear is provided. A frame including a window frame 421 and two rails 422 provided on both sides of the window frame 421, two coils provided between the two rails 422, and two sliding members 432 are provided. The filter 43 provided between them, the two magnetic members 44 provided on the filter 43, and the two covers 41 that hold the filter 43 between the two rails 422. [Selection] Figure 3

Description

  The present invention relates to an optical filter member held between a lens device and a sensing device, particularly in a camera.

  The conventional camera includes a lens device, a sensing device including an exposure member made of, for example, a film or a charge-coupled device (CCD) for sensing a light beam, and a conventional optical filter member. The conventional optical filter member is for filtering a light beam incident on the camera from the lens device into one having intensity and color suitable for development.

  The conventional optical filter member is provided with a plurality of lenses having different filtering effects. For example, since the intensity and color of light incident on the camera differ between daytime and night, the lens of the optical filter must be switched to a suitable one for accurate development.

  In the conventional optical filter member, a drive motor can be used as means for switching the lens by driving the optical filter. However, it is very difficult to reduce the size of a camera using a configuration in which an optical filter is driven by a drive motor. Therefore, in order to solve such problems, small optical filters such as Taiwan Utility Model Registration Nos. M253792 and M302047 have been devised.

  The small optical filter includes a plurality of lenses, a coil wound around the plurality of lenses, and a magnetic member corresponding to the coils, and energizes the coils to generate a magnetic field, The small optical filter is slid by the magnetic force generated between the coil and the magnetic member in the magnetic field. According to this technique, since the configuration is simple, a specific lens can be applied and the size can be easily reduced by sliding the small optical filter to a predetermined position.

  However, the conventional small optical filter has a problem in that, when used, the coil comes into contact with other members and wears, so that failure and malfunction due to wear of the coil frequently occur.

  In addition, the small optical filter described in the Taiwan Utility Model Registration No. M302047 reduces the wear of the coil by installing a dedicated rail, but it cannot effectively solve the wear problem of the coil. .

  Furthermore, from the viewpoint of environmental protection, the motor-driven optical filter or the small optical filter consumes a large amount of power because it consumes power continuously during use.

  In the current market, products with small size and ecological technology are preferred. Therefore, protecting the environment by energy saving leads to improvement of sales competitiveness of products.

  Accordingly, the present invention has been devised and aims to provide an energy-saving optical filter member that can prevent the coil from being worn.

The invention of claim 1 of the present application is
A window frame and two rails provided on both sides of the window frame, each rail being positioned between a plurality of fixing portions, two coil installation portions, and the two coil installation portions; A frame provided with a coupling portion coupled to one side of the window frame;
Two coils provided between the two rails;
Two sliding members, at least one lens provided between the two sliding members, and two holding members provided between the front ends and the rear ends of the two sliding members, respectively. A filter,
Two magnetic members held by the holding member;
Two covers for holding the filter between the two rails;
Each of the coils is provided between a coil installation part of the one rail and a coil installation part opposite to the other rail,
Each of the covers includes an opening aligned with the window frame, a plurality of fixing members hooked to a fixing portion of the frame, and a protrusion for limiting the sliding member. A filter member.

  The invention of claim 2 of the present application provides the optical filter member according to claim 1, wherein a magnetic component is provided in the vicinity of the coil installation portion.

Invention of Claim 3 of this application is that the said filter has two lenses provided along the longitudinal direction of a sliding member between the said two sliding members,
The optical filter member according to claim 1 or 2, wherein the two sliding members and the two holding members are formed in a rectangular frame.

  The invention according to claim 4 of the present application is characterized in that each holding member further has a magnetic portion located between the holding member and the sliding member. An optical filter member is provided.

  The invention of claim 5 of the present application is characterized in that the fixing portion is provided in the vicinity of the coil installation portion, and a hole for holding the magnetic component is further formed in each fixing portion. An optical filter member according to any one of claims 1 to 4 is provided.

  The invention of claim 6 of the present application is characterized in that a plurality of recessed portions for receiving the projections are formed between the window frame and the rail. The optical filter member described in 1. is provided.

  The light source according to any one of claims 1 to 6, wherein the fixing member of the cover is a hook-shaped member fixed to the fixing portion. A filter member.

  The invention of claim 8 of the present application provides the optical filter member according to any one of claims 1 to 7, wherein a switching device is attached to the rail.

  The present invention solves the above-described problems, can prevent the coil from being worn, and can provide an energy-saving optical filter member.

It is an exploded perspective view of a camera using an optical filter member according to the present invention. It is a perspective view of the optical filter member concerning the present invention. It is a disassembled perspective view of the optical filter member which concerns on this invention. It is side surface sectional drawing of the optical filter member which concerns on this invention. It is other side surface sectional drawing of the optical filter member which concerns on this invention. It is a front view which shows the use condition of the optical filter member which concerns on this invention. It is a front view which shows the other use condition of the optical filter member which concerns on this invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following Example is only what showed the preferred embodiment of this invention, and the technical scope of this invention is not limited to the following Example itself at all.

  FIG. 1 is an exploded perspective view of a camera using the optical filter member according to the present invention, FIG. 2 is a perspective view of the optical filter member according to the present invention, and FIG. 3 is an exploded perspective view of the optical filter member according to the present invention. 4A is a side sectional view of an optical filter member according to the present invention, FIG. 4B is another side sectional view of the optical filter member according to the present invention, and FIG. 5 is an optical filter member according to the present invention. FIG. 6 is a front view showing another use state of the optical filter member according to the present invention.

  As shown in FIGS. 1 and 2, the optical filter member (40) according to the present invention includes a lens device (10), a sensing device (20), and the optical filter member (40) as a lens device (10). It is installed in a camera having a holding device (30) for holding between it and the sensing device (20). Among them, the sensing device (20) is connected to the camera from the lens device (10). An exposure member for detecting a light beam incident and filtered by the optical filter member (40) is provided, and the light beam filtered by the configuration has a suitable intensity and color, so that the exposure member is exposed with high accuracy. be able to.

  As shown in FIG. 3, the optical filter member (40) includes a frame (42), two coils (427), a filter (43), two magnetic members (44), and two covers (41). It has.

  Among them, the frame (42) includes a window frame (421) for allowing light rays incident on the camera from the lens device (10) to pass therethrough, and two rails (422) provided on both sides of the window frame (421). Each rail (422) is provided with a plurality of fixing portions (423), two coil installation portions (424), and a coupling portion (426).

  The coil installation part (424) of the one rail (422) corresponds to the coil installation part (424) of the other rail (422). As shown in FIGS. 5 and 6, the two coils (427) are provided between two rails (422), and each coil (427) is provided with a coil installation portion ( 424) and the coil installation portion (424) of the other rail (422) facing each other.

  The coupling part (426) is located between the two coil installation parts (424) and is coupled to one side of the window frame (421).

  In this embodiment, a plurality of recessed portions (425) for receiving the protrusions (414) are formed between the window frame (421) and the rail (422).

  Furthermore, in this embodiment, the coil (427) is energized to generate a magnetic field. In order to adjust the magnetic field, a magnetic core (61) is provided inside the coil (427), and The magnetic core (61) is made of a magnetic material such as ferrite or cobalt and has an outer shape that can be installed inside the coil (427). For example, the magnetic core (61) has an outer shape with a thickness of 1 millimeter and an area of 2 to 3 square centimeters. It may be present.

  As shown in FIG. 3, the filter (43) includes two sliding members (432), at least one lens (431), and two holding members (434), and the lens (431) includes: Provided between the two sliding members (432). One holding member (434) is provided between the front ends of the two sliding members (432), and the other holding member (434) is between the rear ends of the two sliding members (432). Further, the filter (43) includes two lenses (431) provided along the longitudinal direction of the sliding member (432) between the two sliding members (432), The two sliding members (432) and the two holding members (434) are formed in a rectangular frame so as to surround the two lenses (431).

  The holding member (434) has a curved outer shape capable of holding the magnetic member (44). In the filter (43) having two lenses (431) of this embodiment, one lens (431) is provided. Is transparent and the other lens (431) is colored, and the filter (43) is positioned so that one of the two lenses (431) is aligned with the window frame (421). By sliding, different optical filtering effects are provided depending on the use state.

  Each holding member (434) further includes a magnetic portion (435) made of a magnetic material such as ferrite or cobalt, which is located between the holding member (434) and the sliding member (432). In addition to the magnetic member (44) held by the filter (43), the magnetic part (435) also receives a magnetic force in the magnetic field generated by the coil (427), so that a stronger force is applied to the filter (43). Can do.

Each of the magnetic members (44) is held by the holding member (434), and is made of, for example, a natural magnet or an artificial magnet and has a rod shape.
In an embodiment in which the magnetic member (44) has a rod shape, one end of the magnetic member (44) held by the holding member (434) extends to the ocean not exceeding one sliding member (432). At the same time, the other end of the magnetic member (44) is extended so as not to exceed the other sliding member (432). In this embodiment, the magnetic part (435) preferably has a thin piece and is positioned at one end of the magnetic member (44).

  As shown in FIGS. 4A and 4B, the two covers (41) are for holding the filter (43) between the two rails (422), and each cover (41) is a window frame. An opening (411) aligned with (421), a plurality of fixing members (413) hooked on the fixing portion (423) of the frame (42), and a protrusion for limiting the sliding member (432) (414).

In this embodiment, each of the covers (41) has a plate shape, and the fixing member (413) and the protrusion (414) have a plate shape extending integrally with the cover (41). Since the protrusion (414) is bent so as to be hooked to the fixing portion (423) of the frame (42), the cover (41) can be installed on the frame (42). That is, the filter (43) is held between the two rails (422) by a cover (41) installed on the frame (42).

In addition, the protrusion (414) is curved toward the inside of the two covers (41) in order to position the sliding member (432) and limit its movement, and the two rails (422). ).
A plurality of recessed portions (425) are formed between the window frame (421) and the rail (422), and the protrusions (414) are inserted into the recessed portions (425), whereby the slides are formed. The moving member (432) is positioned to limit its movement.

  As shown in FIGS. 5 and 6, a magnetic component (45) made of a magnetic material such as ferrite or cobalt is further provided in the vicinity of the coil installation portion (424), and the fixing portion (423) is a coil. Provided in the vicinity of the installation portion (424), each fixing portion (423) is provided with a hole (428) for holding the magnetic component (45). The hole (428) may penetrate the fixing portion (423).

  In this embodiment, the optical filter member (40) of the present invention includes the frame (42), the filter (43), the magnetic member (44), the cover (41), and the magnetic component. (45), and having the above-described configuration, when the cover (41) is installed in the frame (42), the hole (428) can be sealed at the same time. The magnetic component (45) fitted in the 428) can be simultaneously held in the hole (428).

  Further, in each rail (422), two holes (428) are formed in the vicinity of the two coil installation portions (424), thereby comprising the window frame (421) and the two rails (422). The frame (42) forms a rectangle with four corners. The four holes (428) provided in the two rails (422) are respectively located in the vicinity of the four corners, facing the four corners.

  The four holes (428) are normally fitted with magnetic parts (45) in any of them, but only the two opposite holes (428) of the four holes (428) are respectively provided. The structure in which one magnetic component (45) is provided may be sufficient.

  The rail (422) is attached with a switching device (429) for electrically connecting the coil (427) and an external power source and controlling the electrical connection. The switching device (429) is connected to one rail. It is preferable to attach to the side facing the other rail (422) in (422).

  When using the optical filter member (40) of the present invention, the two coils (427) are respectively installed on opposite coil installation portions (424) on both sides between the two rails (422), By generating a magnetic field by the coil (427), a magnetic force can be applied to the magnetic member (44). For example, when the direction of the current in the coil (427) is changed by the switching device (429), magnetic fields having different magnetic pole arrangements can be generated, so that magnetic force in different directions is given to the magnetic member (44). Can do. If the coil (427) is controlled by this method, the lens (431) to be used is controlled by the lens device (10) and the sensing device (20) by controlling the sliding direction of the filter (43). Since the filter (43) can be slid so as to be positioned between the exposure member, different filtering effects can be exhibited by switching different lenses (431) in the filter (43). .

  When the filter (43) slides, the coil (427) held by the coil installation part (424) of the two rails (422) does not come into contact with other members. ) Can be prevented from malfunctioning or malfunctioning.

  On the other hand, the cover (41) not only holds the filter (43) between the two rails (422), but also restricts the sliding range of the filter (43) by the protrusion (414). It is. According to this configuration, the slidable range of the sliding member (432) is positioned in the vicinity of the protrusion (414) located in the vicinity of one rail (422) and the other rail (422). Since it is limited between the projections (414), the sliding member (432) can be suitably operated without providing a dedicated rail or the like. Therefore, the structure of the present invention that is extremely easy to manufacture by the coil (427) that generates magnetic force and the filter (43) that slides by magnetic force is excellent in practicality.

  Further, as shown in FIG. 1, in the embodiment using the magnetic component (45), when the filter (43) slides to the application position of the specific lens (431), the power supply to the coil (427) is performed. Even in the cut-off standby state, the filter (43) is caused to act on the specific lens (431) by the action of the magnetic force between the magnetic component (45) and the magnetic member (44) of the filter (43). It is fixed at the application position.

  In order to apply another lens (431), the filter (43) fixed by the magnetic force between the magnetic component (45) and the magnetic member (44) of the filter (43) is slid again. When trying to do so, the power supply to the coil (427) is resumed, for example, currents in different directions are supplied to the coil (427), and the magnetic component (427) is again generated by the magnetic field generated by the coil (427). 45) and a magnetic force exceeding the magnetic force between the magnetic member (44) of the filter (43) is applied to the magnetic member (44). In this way, by applying a magnetic force to the magnetic member (44) by the magnetic field generated by the coil (427), the filter (43) is slid to the application position of the other lens (431). Then, if the power supply to the coil (427) is cut again to enter the standby state, the magnetic force between the magnetic component (45) and the magnetic member (44) of the filter (43) The filter (43) is fixed at an application position of the other lens (431).

  As described above, according to the above-described configuration, power is consumed only when the filter (43) is slid in use. Note that a circuit for facilitating control of power supply, current direction conversion, and the like may be provided in the switching device (429).

  Since the present invention has the above-described configuration, it is possible to provide an optical filter member that can prevent coil wear and can achieve an energy saving effect.

DESCRIPTION OF SYMBOLS 10 Camera lens 20 Sensing apparatus 30 Holding apparatus 40 Optical filter member 41 Cover 411 Opening 413 Fixing member 414 Protrusion 42 Frame 421 Window frame 422 Rail 423 Fixing part 424 Coil installation part 425 Recessed part 426 Coupling part 427 Coil 428 Hole 429 Switching apparatus 43 Filter 431 Lens 432 Sliding member 434 Holding member 435 Magnetic part 44 Magnetic member 45 Magnetic component 61 Magnetic core

Claims (8)

A window frame and two rails provided on both sides of the window frame, each rail being positioned between a plurality of fixing portions, two coil installation portions, and the two coil installation portions; A frame provided with a coupling portion coupled to one side of the window frame;
Two coils provided between the two rails;
Two sliding members, at least one lens provided between the two sliding members, and two holding members provided between the front ends and the rear ends of the two sliding members, respectively. A filter,
Two magnetic members held by the holding member;
Two covers for holding the filter between the two rails;
Each of the coils is provided between a coil installation part of the one rail and a coil installation part opposite to the other rail,
Each of the covers includes an opening aligned with the window frame, a plurality of fixing members hooked to a fixing portion of the frame, and a protrusion for limiting the sliding member. Filter member.   The optical filter member according to claim 1, wherein a magnetic component is provided in the vicinity of the coil installation portion. The filter has two lenses provided along the longitudinal direction of the sliding member between the two sliding members,
The optical filter member according to claim 1 or 2, wherein the two sliding members and the two holding members are formed in a rectangular frame.   4. The optical filter member according to claim 1, wherein each holding member further includes a magnetic portion positioned between the holding member and the sliding member. 5.   5. The fixing unit according to claim 1, wherein the fixing unit is provided in the vicinity of the coil installation unit, and each fixing unit is further formed with a hole for holding the magnetic component. The optical filter member according to item 1.   The optical filter member according to any one of claims 1 to 5, wherein a plurality of recessed portions for receiving the protrusions are formed between the window frame and the rail.   The optical filter member according to any one of claims 1 to 6, wherein the fixing member of the cover is a hook-like member fixed to the fixing portion. The optical filter member according to any one of claims 1 to 7, wherein a switching device is attached to the rail.

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