JP3082549U - External auxiliary light source device for dental intraoral camera - Google Patents

Abstract

(57) [Problem] To make an external auxiliary light source device of a dental intraoral camera detachable from a head part and to manufacture it at low cost. SOLUTION: An external auxiliary light source device 6 is formed in an annular shape, and a large number of light emitting diodes 8 are removably arranged inside the external auxiliary light source device 6, and the annular surface on which the light emitting diodes 8 are mounted is transparent. , Which can be opened and closed with a light emitting diode 8
Is connected to the grip part 3 by using a refractible wire rod for the lead wire 11 for supplying electric power.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an external auxiliary light source device of a dental intraoral camera (hereinafter, referred to as a camera) for imaging while illuminating an intraoral subject.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, in general, it has been necessary to illuminate a subject with a required illuminance of a subject in order to clearly capture a subject in an oral cavity. In order to obtain the illuminance of the subject, for example, in a conventional camera, a light source is arranged near an imaging unit inside the head to irradiate the subject. Light from a halogen lamp or the like was used as the light source, and the object was illuminated from inside the camera via glass fiber or the like.

[0003]

[Problems to be solved by the invention]

 However, since the intraoral camera has limitations on the size of the camera body and the area of the light emitting part because it is inserted into the oral cavity, the amount of light emitted from the camera body is limited, and the irradiation area is also limited. Had become something. Therefore, conventionally, when photographing a dental arch, a wish, and the like with the same camera, there is a problem that a clear image cannot be obtained due to a shortage of light amount due to a distance between the camera and a subject.

Further, the conventional camera does not have a detachable function of the external auxiliary light source device due to its structure. Therefore, in order to obtain a sufficient amount of light, an external auxiliary light source device independent of the camera is prepared. Or provide another camera with sufficient light.

[0005] Also, a conventional camera illuminating device uses an optical fiber to guide light from a light source to a head portion. However, the optical fiber has a property that cracks easily occur when the optical fiber is bent. Becomes large and cannot be used. Furthermore, visible light, white light, light from a halogen lamp, and the like are used as light guided by the optical fiber, but these light sources are expensive.

In addition, since the color of the light applied to the subject differs depending on the light source, it is necessary to prepare an external auxiliary light source device independent from the camera to match the color between the subject and the light source. However, it is difficult to easily use a light source of a color that matches the color of the subject.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide an external auxiliary light source device for a camera which can be attached to and detached from the camera and which is configured at low cost.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the invention of claim 1, which relates to an external auxiliary light source device for a dental intraoral camera, relates to a dental intraoral camera for photographing while illuminating an object in the oral cavity. An external auxiliary light source device is configured to be detachable.

The invention according to claim 2 is characterized in that the external auxiliary light source device is formed in an annular shape covering the outer periphery of the head portion and has a light source therein. External auxiliary light source device.

[0010] The invention according to claim 3 is the external auxiliary light source device for a dental intraoral camera according to claim 2, wherein the light source comprises a light emitting diode.

The invention according to claim 4 is the external auxiliary light source device for a dental intraoral camera according to claim 3, wherein the light emitting diode is detachable.

According to a fifth aspect of the present invention, the external auxiliary light source device formed in an annular shape has a notch in a part of the circumference, and elastically clamps the outer circumference of the head portion from the inner circumference to the notch. 2. A mounting member which can be mounted by an elastic force of the mounting member by providing a mounting member capable of being inserted, and inserting the head portion into the inside of the notch portion of the external auxiliary light source device through the opening. Or an external auxiliary light source device of the dental intraoral camera according to 2.

According to the invention of claim 6, in the external auxiliary light source device formed in an annular shape, a magnetic plate is integrally provided on a surface in the anti-irradiation direction, divided into two in the axial direction, and a split surface via a hinge. A magnet is provided on one of the split surfaces, and a magnetic plate is provided on the other surface so that the magnet and the magnetic plate can be integrated into a ring shape by suction. A magnet is provided on the surface of the head portion in the direction opposite to the irradiation direction, and the magnet and the magnetic plate on the side of the external auxiliary light source device are attracted to attach the external auxiliary light source device to the head portion. An external auxiliary light source device for a dental intraoral camera according to claim 1 or 2.

According to the first aspect of the present invention, the external auxiliary light source device is detachably mounted on the head portion of the camera, so that the external auxiliary light source device attached to the head portion can shoot while illuminating the subject. It becomes possible.

According to the invention of claim 2, the external auxiliary light source device is formed in an annular shape surrounding the outer periphery of the head portion, and the light source is provided inside the annular shape, so that the peripheral portion of the imaging section and the head portion of the camera is provided. The subject can be illuminated without shadow over a wide range of 360 degrees, and a clear image can be obtained.

According to the invention of claim 3, since the light emitting diode can be turned on with a small amount of electric power by using the light emitting diode as the light source, a battery or a dry battery using a bendable lead wire can be used. It is possible to wire from the DC power supply to the vicinity of the camera head of the bent structure. This facilitates the installation of lighting means and reduces the cost of lighting equipment.

According to the invention of claim 4, since the light emitting diode is detachable, it is possible to create a light emitting color suitable for a shooting environment by combining and attaching diodes of different light emitting colors.

According to the fifth aspect of the present invention, by pushing the head portion into the notch portion of the external auxiliary light source device into the inside thereof, the head portion is mounted with one touch by the elastic force of the mounting member provided inside. It becomes possible.

According to the invention of claim 6, the external auxiliary light source device is divided into two parts in the axial direction, the split surface can be opened and closed via a hinge, and the split surface can be attracted by a magnet and a magnetic material. Since the external auxiliary light source device is opened, the head part is inserted, and then closed, the split surface is attracted and the mounting becomes possible. Further, since a magnet is also provided on the surface of the camera head unit in the anti-irradiation direction, the magnet of the inserted head unit is attracted to and bonded to the magnetic body on the side of the external auxiliary light source device, and is prevented from falling off.

[0020]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1 FIGS. 1 to 4 relate to Embodiment 1 of the present invention, and FIG. 1 is a diagram showing a state in which an external auxiliary light source device is mounted on a head portion of a camera, and FIG. Is a perspective view showing a light emitting diode mounted on the external auxiliary light source device, (b) is an enlarged perspective view showing a part for mounting the light emitting diode, and (c) is a detachable lid for covering the mounting surface of the light emitting diode. 3A is a perspective view showing a mounting member of the camera head, FIG. 3B is a perspective view showing a head mounting portion of the external auxiliary light source device, and FIG. FIG. 4 is a perspective view showing a state in which an external auxiliary light source device having a built-in battery is mounted on a head unit.

As shown in FIG. 6, a camera to which the present invention is applied includes a head unit 2 having a built-in imaging unit 1 for photographing a subject, a grip unit 3 gripped during operation, and a head unit 2 and a grip unit 3. A cable 5 for electrically connecting the grip section 3 to a control section (not shown) is connected to the rear end of the grip section 3.

In the present invention, an external auxiliary light source device is detachably mounted on the camera head unit 2.

As shown in FIG. 2A, the external auxiliary light source device 6 is formed in a case 6 b having an annular shape, and has a notch in which a portion from the outer periphery to the inner periphery is partially separated on the annular periphery. A part 7 is provided. The inner periphery 6a is a portion into which the outer periphery of the camera head 2 is fitted, and the width of the cutout 7 is set to a size that allows the outer diameter of the connecting portion 4 to be inserted.

Further, in the annular case 6b, a large number of light-emitting diodes 8 are disposed over the entire annular surface, and the light-emitting diodes 8 are connected via sockets 9 as shown in a partially enlarged view (b). It is configured to be detachable. On the surface on which the light emitting diode 8 is mounted, an annular and transparent cover 10 shown in FIG. 5C is detachably provided, and the light emitting diode 8 can be attached and detached by attaching and detaching the cover 10. . The power supply to the light emitting diode 8 is performed by a lead wire 11 connected to the grip portion 3 as shown in FIG.

A large number of light emitting diodes 8 are connected in series or in parallel or in series, and a lead wire or a flexible wiring board for supplying electric power is led out of the head unit 2 and is connected to the grip unit 3 side. Connected lead terminals and lead wires are connected via the connector 12.

When using connectors, in order to match the polarity of the lead wires connected to the terminals of each connector and connect them, an uneven portion is provided at the joint of each connector, or each connector to be connected is connected. Care must be taken not to arrange these terminals point-symmetrically.

The external auxiliary light source device 6 configured as described above is mounted on the head portion 2 so as to surround the outer periphery thereof, as shown in FIG. 1, and is connected to the lead wire 11 connected to the external auxiliary light source device 6. The other end is connected to a power supply provided on the grip unit 3. As a result, it becomes ready to take a picture while illuminating the subject in the oral cavity.

In order to securely mount the annular external auxiliary light source device 6 to the head portion 2, as shown in FIG. 3A, the external auxiliary light source device 6 extends from the notch 7 to the inner periphery 6 a of the external auxiliary light source device 6. The mounting member 13 of the head portion 2 is provided, and the mounting member 13 has a shape along the inner periphery of the external auxiliary light source device 6 and a narrow entrance as shown in FIG. It is formed of a material that can be used, for example, a metal or plastic spring plate.

With this configuration, it is possible to perform one-touch mounting with the elastic force of the mounting member 13 simply by pushing the head unit 2 into the mounting member 13 of the external auxiliary light source device 6. Further, the mounted head unit 2 is supported by the partition plate 14 so as not to drop off in the axial direction, and is securely mounted.

Further, as shown in FIGS. 3A and 3C, by incorporating a battery 15 on the side opposite to the irradiation direction of the external auxiliary light source device 6, power is supplied to the light emitting diode 8 as shown in FIG. Lead wire is not required. The battery 15 can be replaced by attaching and detaching the lid 16.

According to the present embodiment, by attaching the external auxiliary light source device 6 having the above-described configuration to the head unit 2, the light generated by the light emitting diodes 8 arranged on the annular surface emits 360 ° light. It is possible to illuminate the subject shadowlessly over a wide area. Further, since the lead wire 11 for supplying power to the light emitting diode 8 is bendable, wiring to the external auxiliary light source device 6 becomes easy.

This eliminates the problem of optical loss caused by the cracks caused by the bending of the optical fiber, which has been conventionally used, and uses a small and inexpensive DC power supply as the power supply because the power consumption of the light emitting diode is small. Can be. Further, since the light emitting diode 8 is detachable, the light emitting diode 8 can be exchanged. By installing the light emitting diode 8 of various light emitting colors in combination, it is possible to create a light emitting color suitable for the photographing environment.

The mounting of the external auxiliary light source device 6 to the head unit 2 is elastically held by the mounting member 13 and is supported by the partition plate 14 so as not to fall off, so that the mounting can be securely performed. .

(Embodiment 2) FIG. 5 is a perspective view of a split external auxiliary light source device showing Embodiment 2 of the present invention. This embodiment is different from the first embodiment in that the external auxiliary light source device is integrally formed, but the annular external auxiliary light source device is divided into two parts in the axial direction and can be opened and closed. Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

In FIG. 5, the external auxiliary light source device 21 integrally fixes the magnetic plate 22 on the surface in the anti-irradiation direction, divides it into two in the axial direction (in a plane including the axis), and A hinge 24 is provided at the common end so as to be openable and closable, and a magnet 25 is provided on one surface of the split surface 23 and a magnetic plate 26 is provided on the other surface (or magnets may be provided on both surfaces). ), The magnet and the magnetic plate can be integrated into an annular shape by suction. On the other hand, a magnet 27 is provided in the direction opposite to the irradiation of the head portion 2 and is attracted to the magnetic plate 22 on the side of the external auxiliary light source device 21 so as not to fall off in the axial direction.

The surfaces of a large number of light emitting diodes mounted in the external auxiliary light source device 21 are removably covered with a lid 28 divided into two parts, and the light emitting diodes are similar to the first embodiment. It is removable.

According to the present embodiment, the external auxiliary light source device 21 can be attached to and detached from the head unit 2 by opening and closing the external auxiliary light source device 21. By adsorbing to the body 22, it is possible to securely mount it so that it does not fall off in the axial direction. The other effects are the same as those of the first embodiment.

[0039]

[Effect of the invention]

 According to the present invention, the annular external auxiliary light source device is configured to be detachably attached to the head portion of the camera, so that it can be easily mounted on the camera and can take a picture while irradiating the imaging section.

Further, since the annular external auxiliary light source device surrounding the head portion has a large number of light sources disposed therein, the subject is not covered over a wide range of 360 degrees around the head portion from the image pickup portion of the camera. Lighting is possible, and light-emitting diodes that use very little power are used as light sources, so power can be supplied from a DC power supply such as a battery or dry cell, and wiring is performed using flexible lead wires. Therefore, the installation of the lighting means is facilitated, and the cost of the lighting equipment can be reduced.

Further, since the light emitting diode is detachable, it is possible to mount a combination of diodes of different light emitting colors, and it is possible to create a light emitting color suitable for a shooting environment.

The external auxiliary light source device formed in an annular shape is fixed to the head with a mounting member having elasticity, or the external auxiliary light source device is divided into two to sandwich the head. Thereby, the attachment to the head portion is simple and reliable.

[Brief description of the drawings]

FIG. 1 is a diagram showing a state in which an external auxiliary light source device is mounted on a camera according to a first embodiment of the present invention.

2A is a perspective view showing a light emitting diode mounted on an external auxiliary light source device, FIG. 2B is a partially enlarged perspective view showing a mounting portion of the light emitting diode, and FIG. It is a figure showing a removable lid.

3A is a perspective view showing a head mounting portion of the external auxiliary light source device, FIG. 3B is a perspective view showing a mounting member for fixing the head portion, and FIG. 3C is an anti-irradiation direction of the external auxiliary light source device. FIG. 3 is a diagram showing a battery built in the device.

FIG. 4 is a perspective view in which an external auxiliary light source device containing a battery is mounted on a head unit.

FIG. 5 is a perspective view of an external auxiliary light source device divided into two parts according to the second embodiment of the present invention.

FIG. 6 is a perspective view showing a conventional dental intraoral camera.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Image pick-up part 2 Head part 3 Grip part 4 Connecting part 5 Cable 6,21 External auxiliary light source device 7 Notch part 8 Light emitting diode 9 Socket 10,16,28 Cover 11 Lead wire 12 Connector 13 Mounting member 14 Partition plate 15 Battery 22 , 26 Magnetic plate 23 Split surface 24 Hinge 25, 27 Magnet

Claims (6)

[Utility model registration claims] 1. A dental intraoral camera for photographing while illuminating a subject in the oral cavity, wherein an external auxiliary light source device is detachably attached to a head of the dental intraoral camera. External auxiliary light source device for internal camera. 2. The external auxiliary light source device for a dental intraoral camera according to claim 1, wherein the external auxiliary light source device is formed in an annular shape surrounding an outer periphery of a head portion and has a light source therein. . 3. The external auxiliary light source device for a dental intraoral camera according to claim 2, wherein the light source comprises a light emitting diode. 4. The external auxiliary light source device for a dental intraoral camera according to claim 3, wherein the light emitting diode is detachable. 5. The external auxiliary light source device formed in an annular shape has a notch in a part of the circumference, and a mounting member capable of elastically holding the outer circumference of the head portion from the inner circumference to the notch. 2. The mounting device according to claim 1, wherein the head is inserted into the external auxiliary light source device through an opening of a cutout portion of the external auxiliary light source device, thereby enabling mounting by the elastic force of the mounting member.
Or an external auxiliary light source device for the dental intraoral camera according to 2. 6. The external auxiliary light source device formed in an annular shape, a magnetic plate is integrally provided on the surface in the anti-irradiation direction, divided into two in the axial direction, and the split surface can be freely opened and closed via a hinge.
In addition, a magnet is provided on one surface of the split surface and a magnetic plate is provided on the other surface so that the magnet and the magnetic plate can be integrated into an annular shape by suction, and on the other hand, in the head portion, The external auxiliary light source device is mounted on the head unit by providing a magnet on a surface in the anti-irradiation direction and adsorbing the magnet and a magnetic plate on the external auxiliary light source device side. 3. The external auxiliary light source device of the dental intraoral camera according to 2.