KR100719962B1 - Device for guiding camera flash light - Google Patents

Abstract

The present invention relates to a camera light guide device that can be used semi-permanently without affecting the appearance of the camera and is easy to install.

The camera light guide device according to the present invention includes a camera main body, a camera lens bundle protruding forward from the camera main body, a protruding position protruding from the camera main body so that light can be emitted to a subject, and immersed in the camera main body. A camera light guide device detachably coupled to a camera having a flash that can be selectively positioned between immersive positions so that light emitted from the flash of the camera can be received and directed toward the subject, wherein each end surface of the camera is guided to the object. The other end face facing the front surface of the flash at the position is disposed so as to be spaced apart from the outer circumferential face of the camera lens bundle, so that the light emitted from the flash is guided to the other end face from the one end face and exits toward the subject. A plurality of light guides .; And a body portion into which the light guide member is fitted so that the light guide member is supported by the camera, a rear extension portion extending rearward from the body portion and contacting the bottom surface of the flash at the protruding position, and downward from the body portion. And extending to the frame having a lower extension in contact with the camera body.

Description

Device light guiding device {Device for guiding camera flash light}

1 is a side view of a camera according to a conventional example, and is a side view schematically showing a state in which a flash of the camera is located at a protruding position.

2 is a schematic perspective view of a camera light guide device according to a conventional example used in the camera shown in FIG.

3 is a schematic perspective view of a camera light guide device according to an embodiment of the present invention used in the camera shown in FIG.

4 and 5 are views for explaining a process of installing the camera light guide device shown in FIG. 3 to the camera shown in FIG.

6 is a schematic side view of a camera light guide device according to another embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 6.

FIG. 8 is a cross-sectional view taken along line VII-VII of FIG. 6.

<Description of the symbols for the main parts of the drawings>

10 ... camera 11 ... camera body

12.Camera lens assembly 13 ... Fresh

20 ... Light guide member 30 ... Frame

31.Body part 32.Rear extension

33.Extended extension 40 ... Support member

41 through hole 42 insertion hole

Camera light guide unit 111

112 ... Fresh Cover 311 ... Insert

321 Rear fixing member 322,332

323 Sliding member for rear fixing member 324,334 Guide groove

331 ... downward fixing member 333 ... sliding member for downward fixing member

The present invention relates to a camera light guide device, and more particularly, to receive a light emitted from the flash of the camera to guide the subject once the subject so that the shadow area does not occur when shooting the subject can be emitted to the subject again. The present invention relates to a camera light guide device having an improved structure such that a flash can be detachably coupled to a camera configured to protrude from a camera body.

Cameras are not only used for the traditional purposes of photographing landscapes and people, but are also widely used for research and medical purposes in modern times. In particular, cameras are widely used for the purpose of diagnosing oral or dental conditions of a person. Such cameras come in a variety of forms, and one example of a camera used by professionals is shown in FIG. 1.

Referring to FIG. 1, the camera 10 includes a camera body 11 having a groove 111, a camera lens bundle 12 protruding forward from the camera body 11, and including a lens 121. And a flash 13 which can be selectively positioned between the protruding position shown by the solid line in FIG. 1 and the immersion position shown by the virtual line in FIG. 1. The flash 13 is fixed to a flash cover 112 rotatably coupled to the camera body 11 in a direction as shown in FIG. 1, and the flash cover 112 is specifically illustrated in FIG. 1. It is not, but is generally biased to the protruding position by a spring as is widely known. In the protruding position, the flash 13 protrudes from the camera body 11, and when the user operates the flash 13 in this state, light is emitted from the flash 13 to the subject. In addition, in the immersion position, the flash cover 112 is caught by the camera main body 11 so that the flash 13 is accommodated in the groove 111 of the camera main body and immersed. When the 112 is pushed downward, the flash cover 112 is slightly lowered to release the latch with the camera body 11, and thus the flash cover 112 is rotated by the elastic force of the spring, thereby finally closing the latch. The flash 11 is located in the protruding position.

On the other hand, in the case of photographing the inside of the human mouth using the camera 10, the flash 13 is disposed eccentrically with respect to the central axis of the camera lens bundle 12, the camera lens bundle 12 Since the central axis and the human mouth and the flash 13 are not coaxially arranged with each other, the light emitted from the flash 13 cannot reach a predetermined portion in the oral cavity. There will be shadows. When the shadow is generated, the entire area inside the oral cavity is not photographed, and only a part of the intraoral region is photographed. Therefore, a problem occurs such that the patient's health condition cannot be accurately diagnosed. A camera light guide device 1 as used was used.

The camera light guide device 1 includes a frame 4 having a plurality of light guide members 2 and a through hole 3 into which the light guide members 2 are inserted and fixed, and the frame 4 and the camera body. Removable and mutually removable with the male Velcro tapes 5 covering both the male Velcro tapes 5 attached to the 11 and the male Velcro tapes 5 attached to the frame 4 and the camera body 11. A female velcro tape 6 is provided. Each of the light guide members 2 is disposed such that one end surface thereof faces the front surface of the flash 13 at the protruding position, and the other end surface thereof is spaced apart from the outer circumferential surface of the camera lens assembly 12. The light emitted from) is guided from the one end surface to the other end surface to be emitted toward the subject.

The camera light guide device 1 configured as described above has the frame 4 in which the light guide members 2 are inserted in such a state that one end surfaces of the light guide members 2 face the front surface of the flash 13. The female velcro tape 6 is attached to the camera 10 by attaching it to the male velcro tapes 5 attached to the frame 4 and the camera body 11.

However, in order to install the above-described conventional camera light guide device 1 to the camera, the male velcro tape 5 must be attached to the camera body, which causes a problem in that the appearance of the camera is not good.

In addition, as the number of times of use of the camera light guide device increases, the adhesive force between the male Velcro tape 5 and the female Velcro tape 6 decreases, so that the male Velcro tape 5 and the female Velcro tape 6 are periodically There was also the hassle to replace.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a camera light guide device that can be used semi-permanently without affecting the appearance of the camera and easy to install.

In order to achieve the above object, the camera light guide device according to the present invention, the camera body, a camera lens bundle protruding forward from the camera body, and a protruding position protruding from the camera body so that the light can be emitted to the subject And a camera detachably coupled to a camera having a flash that can be selectively positioned between an immersion position immersed in the camera body, so that light emitted from the flash of the camera is received and guided toward the subject. Each end face faces the front face of the flash at the protruding position and each other end face is arranged to be spaced apart from the outer circumferential face of the camera lens assembly, so that light emitted from the flash is guided from the one end face to the other end face. Emitted toward the subject A plurality of light guide members for the lock; And a body portion into which the light guide member is fitted so that the light guide member is supported by the camera, a rear extension portion extending rearward from the body portion and contacting the bottom surface of the flash at the protruding position, and downward from the body portion. And extending to the frame having a lower extension in contact with the camera body.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a schematic perspective view of a camera light guide device according to an embodiment of the present invention used in the camera shown in FIG. 1, and FIGS. 4 and 5 show the camera light guide device shown in FIG. Figures for explaining the process of installing in the camera.

3 to 5, the camera light guide device 100 of the present embodiment is detachably coupled to the camera 10 to receive light emitted from the flash of the camera 10 and guide the light toward the subject. The camera 10 includes a camera body 11 having a groove 111, a camera lens bundle 12 protruding forward from the camera body 11, including a lens 121, and a solid line in FIG. 1. It is provided with a flash 13 which can be selectively positioned between the protruding position shown in FIG. 1 and the immersive position shown in FIG. 1, the description of the camera 10 being described in detail with reference to FIG. 1 in the prior art. The same is omitted here. The subject (not shown) is located in front of the camera lens bundle.

The camera light guide device 100 includes a light guide member 20, a frame 30, and a support member 40.

A plurality of light guide members 20 are provided, but a pair is provided in this embodiment. The light guide members 20 are disposed at both sides of the camera lens bundle 2 in the radial direction. Each of the light guide members 20 has one end face of each of the light guide members 20 facing the front surface of the flash 13 at the protruding position, and the other end face of the light guide member 20 faces the camera. It is arranged so as to be spaced apart from the outer circumferential surface of the lens bundle 12 by a predetermined interval. When the flash 13 is operated, the light emitted from the flash 13 is guided from one end surface of each of the light guide members 20 to the other end surface to be emitted toward the subject.

Each of the light guide members 20 is an optical fiber capable of transmitting light, and a material thereof is polymethyl methacrylate (PMMA) and fluorinated poly methyl methacrylate (F-PMMA). Acrylic resins, such as these, are used. That is, the inner side of the light guide member, a so-called core, is an acrylic resin such as polymethyl methacrylate (PMMA), and the outside of the light guide member surrounding the polymethyl methacrylate, so-called clad. An acrylic resin such as fluorinated polymethyl methacrylate (F-PMMA) is used.

In this embodiment, each of the light guide members 20 is formed in a rod shape having a circular cross section, the diameter of which may vary, but is preferably 5mm to 18mm. That is, when the diameter of each of the light guide members 20 is less than 5 mm, the diameter thereof is too small, which lowers the light receiving ability and the light transmission efficiency. In addition, even if the diameter of each of the light guide members 20 exceeds 18mm, it is not economical because a large amount of materials are used unnecessarily without greatly improving the light receiving ability and light transmission efficiency. On the other hand, each of the light guide members 20 may bundle a plurality of thin optical fibers into one bundle, and then form a single light guide member using a so-called multicore, which is a combination of such bundles. However, when the light guide member is formed of the multi-core, the light transmission efficiency may be deteriorated. Therefore, it is preferable that each of the light guide members 20 is made of a so-called single core made of a single optical fiber instead of a plurality of bundles using the poly methyl methacrylate.

It is preferable that the outer circumferential surface of each of the light guide members 20 is wrapped by, for example, a coating of plastic material so that the light guide members 20 are not damaged due to an external impact or friction and thus the light transmission efficiency is not reduced. Do.

The frame 30 is provided to allow the light guide members 20 to be supported by the camera 10, and is detachably coupled to the camera 10.

The frame 30 includes a body portion 31, a rear extension portion 32, and a downward extension portion 33. The body portion 31 is formed with an insertion hole 311 to which the respective light guide members 20 are inserted and fixed. The rear extension portion 32 is a portion extending rearward from the lower portion of the rear portion of the trunk portion 31, in particular, the trunk portion. In the protruding position, the rear extension portion 32 is in contact with the bottom surface of the flash 13. The lower extension portion 33 is a portion extending downward from the lower portion of the front of the body portion 31, in particular the body portion. In the protruding position, the downward extension portion 33 is in contact with the camera body 11, in particular in the embodiment is inserted into the groove 111 of the camera body to be accommodated.

The support member 40 is coupled to the camera lens bundle 12 and supports the light guide members 20. The support member 40 is provided with a through hole 41 and a pair of insertion holes 42.

The camera lens bundle 12 is fitted into the through hole 41, so that the support member 40 and the camera lens bundle 12 are coupled to each other. The insertion holes 42 are formed at both sides of the camera lens bundle 12 in the radial direction around the through hole 41. In addition, the light guide members 20 are inserted into and supported in the insertion holes 42, respectively, thereby fixing the position of the end portion near the other end surface of each of the light guide members 20. The original shape can be maintained without being deformed by heat or the like.

Hereinafter, an example of a process of installing and separating the camera light guide device 100 of the present embodiment to the camera 10 will be described.

In order to install the camera light guide device 100, first, as described in detail in the prior art, by pressing the flash cover 112 of the camera to place the flash 13 of the camera in the projection position shown by the solid line in FIG. In such a state, as shown in FIG. 4, the subassembly formed by coupling the light guide members 20 to the frame 30 is inserted into the groove 111 of the camera body. Then, when the subassembly is moved in the direction of the arrow shown in FIG. 4, the rear extension 32 of the frame comes into contact with the bottom surface of the flash 13 as shown in FIG. In this state, the lower extension 33 of the frame is in contact with the inner surface of the groove 111. Therefore, in the state shown in FIG. 5, the frame 30 contacts the inner surface of the groove 111 and the bottom surface of the flash 13 to be firmly supported by the camera 10. Finally, the camera lens bundle 12 is inserted into the through hole 41 of the support member, and each of the light guide members 20 is inserted into the insertion holes 42 of the support member 40. ) To the camera 10.

As described above, in the camera light guide device 100 of the present embodiment, the frame 30 into which the light guide members 20 are inserted is brought into contact with the groove 111 of the camera body by the lower extension 33 of the frame. The frame 30 can be installed in the camera 10, as long as the rear extension portion 32 of the frame is in contact with the bottom surface of the flash 13. Therefore, unlike the prior art, a separate part for installing the camera light guide device 100 in the camera body 10 is not required, and thus the appearance of the camera may not be damaged. In addition, since the frame 30 simply needs to be sandwiched between the flash cover 112 and the groove 111, it is easy to install compared with the conventional and semi-permanently replaces the camera light guide device without replacing parts. It becomes usable.

On the other hand, in order to separate the installed camera light guide device 100 from the camera 10, after separating the support member 40 from the camera lens bundle 13 and the light guide member 20, in contrast to the installation process, The frame 30 may be removed.

6 is a schematic side view of a camera light guide device according to another embodiment of the present invention, FIG. 7 is a sectional view taken along line X-ray of FIG. 6, and FIG. 8 is a sectional view taken along line X-ray of FIG. 6.

6 to 8, the camera light guide apparatus 200 according to the present embodiment also includes the light guide member 20, the frame 30, and the support member 40. While the same as the camera light guide device 100 according to an embodiment of the present invention described.

On the other hand, the camera light guide device 200 of the present embodiment is a camera light guide according to an embodiment of the present invention described with reference to Figures 3 to 5 in that the frame 30 is to be movable in the vertical direction Unlike device 100, this will be described in detail below.

The lower extension part 33 of the frame 30 includes a lower fixing member 331 and a sliding member 333 for the lower fixing member.

The lower fixing member 331 is fixed to the body portion 31 of the frame. Protrusions 332 are formed on both sides of the lower fixing member 331, respectively.

The lower fixing member sliding member 333 is coupled to the lower fixing member 331 to be slidable in the vertical direction with respect to the lower fixing member 331. A pair of guide grooves 334 into which the protrusions 332 of the lower fixing member 331 are fitted are formed in the sliding member 333 for the lower fixing member. Thus, as the protrusions 332 are fitted into the guide grooves 334, respectively, and slide along the guide grooves 334, the downward fixing member sliding member 333 slides with respect to the downward fixing member 331. Will be. As shown in FIG. 7, the lower end of the sliding member 333 for the lower fixing member is inserted into the groove 111 of the camera body to be in contact with the groove 111.

A pair of elastic members 50, for example, a compression coil spring, is coupled between the lower fixing member 331 and the sliding member 333 for the lower fixing member. One end of each of the elastic members 50 is supported by the lower fixing member 331, and the other end thereof is supported by the sliding member 333 for the lower fixing member. The sliding member 333 for the lower fixing member is elastically biased downward by the elastic members 50. In addition, the downward fixing member sliding member 333 is capable of flowing a predetermined interval in the vertical direction.

The rear extension part 32 of the frame 30 includes a rear fixing member 321 and a sliding member 323 for the rear fixing member.

The rear fixing member 321 is fixed to the body portion 31 of the frame. Protrusions 322 are formed at both sides of the rear fixing member 321, respectively.

The rear fixing member sliding member 323 is coupled to the rear fixing member 321 to be slidable in the vertical direction with respect to the rear fixing member 321. The rear fixing member sliding member 323 has a pair of guide grooves 324 into which the projections 322 of the rear fixing member 321 are fitted. Therefore, as the protrusions 322 are fitted into the guide grooves 324, respectively, and slide along the guide grooves 324, the sliding member 323 for the rear fixing member slides with respect to the rear fixing member 321. Will be. The upper end of the rear fixing member sliding member 323 is in contact with the bottom surface of the flash 13 as shown in FIG.

A pair of elastic members 50, for example, a compression coil spring, is coupled between the rear fixing member 321 and the sliding member 323 for the rear fixing member. One end of each elastic member 50 is in contact with the rear fixing member 321 and the other end is in contact with the rear fixing member sliding member 323. The sliding member 323 for the rear fixing member is elastically biased downward by the elastic members 50. In addition, the rear fixing member sliding member 323 is capable of flowing at regular intervals in the vertical direction.

In the camera light guide device 200 configured as described above, the sliding member 333 for the lower fixing member and the sliding member 323 for the rear fixing member are configured to be slidable in the vertical direction, and the sliding members 333 and 323. ) Is elastically biased downward and upward, respectively, when the user installs the camera light guide device 200, first, the sub assembly formed by coupling the light guide members 20 to the frame 30 is installed in the camera. . That is, when the elastic members 50 are compressed to a certain degree and properly positioned between the flash 13 and the groove 111 of the camera body, the elastic members 50 are released when the elastic members 50 are decompressed. By the lower fixing member sliding member 333 and the rear fixing member sliding member 323 is moved downward and upward, respectively, the lower fixing member sliding member 333 is the groove 111 of the camera body Is inserted into the contact with the inner surface of the groove 111 and the sliding member 323 for the rear fixing member is in contact with the bottom surface of the flash (13). Therefore, the sub-assembly formed by coupling the light guide members 20 to the frame 30 is firmly supported by the camera 10.

After installing the sub-assembly as described above, the camera lens bundle 12 is inserted into the through hole 41 of the support member, and each of the light guide members 20 is inserted into the insertion holes 42 of the support member 40. When the support member 40 is coupled to the camera 10 by inserting, the camera light guide device 200 can be finally mounted to the camera 10.

As described above, in the present embodiment, the frame 30 is configured such that the lower fixing member sliding member 333 and the rear fixing member sliding member 323 of the frame are movable in the vertical direction. The camera light guide device 200 has an advantage that it is easy to install and more firmly mounted to the camera than the camera ride guide device 100 described with reference to FIGS. 3 to 5.

On the other hand, in order to separate the installed camera light guide device 200 from the camera 10, after separating the support member 40 from the camera 10, the sliding member 333 for the lower fixing member and the sliding for the rear fixing member. After pressing the members 323 upward and downward, respectively, to compress the elastic members 50, the sub assembly formed by coupling the light guide members 20 to the frame 30 may be separated from the camera 10.

As mentioned above, the present invention has been described in detail with reference to preferred embodiments, but the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the technical idea of the present invention. It is obvious.

For example, in the present embodiment, the support member is provided, but the support member may be configured not to be provided. Even if the support member is not provided in this way, when the light guide member is plastically deformed to a certain degree, the end portion of the light guide member near the other end surface can be arranged on both sides of the camera lens bundle in the radial direction.

In addition, although a pair of light guide members is provided in this embodiment, three or more light guide members may be provided.

In addition, in the present embodiment, the flash is fixed to the flash cover and is configured to rotate together with the flash cover, but the flash may be configured to be lifted up and down.

Further, in this embodiment, the end of the lower extension of the frame is configured to be accommodated in the groove portion of the camera body, but the end of the lower extension of the frame is configured to contact the surface of the camera body so that the end of the lower extension of the frame and the camera body The frame may be configured to be supported by the camera body by the friction force therebetween.

In addition, in this embodiment, both the rear extension part and the lower extension part of the frame are configured to be movable in the vertical direction, but only the rear extension part of the frame is configured to be movable in the vertical direction, or only the lower extension part of the frame. It may be configured to be able to flow in the vertical direction.

According to the present invention having the above-described configuration, the camera light guide is simply installed so that the lower extension of the frame is in contact with the groove of the camera body and the rear extension of the frame is in contact with the bottom of the flash. Since the device can be mounted on the camera, not only is it easier to install than the related art, but also unlike the related art, the camera light guide device can be used semi-permanently without replacing parts.

In addition, unlike the prior art, a separate part for installing the camera light guide device is not required in the camera body, so that the exterior of the camera may not be damaged to install the camera light guide device.

In addition, when the frame 30 is configured to be movable in the vertical direction, not only the installation is easier but also the camera can be more firmly mounted.

Claims (7)

Optionally, a camera body having a groove portion, a camera lens bundle protruding forward from the camera body, a projection position projecting from the camera body so that light can be emitted to a subject, and an immersion position immersed in the groove portion of the camera body. In the camera light guide device for detachably coupled to the camera having a flash position that can be positioned to receive light emitted from the flash of the camera to be directed toward the subject, Each end face faces the front face of the flash at the protruding position and each other end face is arranged to be spaced apart from the outer circumferential face of the camera lens assembly, so that light emitted from the flash is guided from the one end face to the other end face. A plurality of light guiding members for emitting toward the subject; And A body portion into which the light guide member is fitted so that the light guide member is supported by the camera, a rear extension portion extending rearward from the body portion to contact the bottom surface of the flash at the protruding position, and downward from the body portion; And a frame having a downward extension part extended to contact the camera body. Each of the light guide members may include a single core made of a single optical fiber as an acrylic resin including polymethyl methacrylate (PMMA); And a clad made of an acrylic resin surrounding the core and including fluorinated poly methyl methacrylate (F-PMMA). The light guide member has a diameter of 5mm to 18mm, When the flash is positioned in the protruding position, an end portion of the lower extension portion of the frame is accommodated in the groove portion of the camera body. Camera body of the frame, characterized in that at least one of the body portion, the rear extension portion and the lower extension portion is movable in the vertical direction. delete The method of claim 1, The light guide member is provided with a pair, and the pair of light guide members are respectively disposed on both sides of the camera lens bundle in the radial direction. The method of claim 1, And a support member coupled to the camera lens bundle and supporting the end portion of the light guide member so that the end portion near the other end surface of the light guide members is positioned. delete The method of claim 1, The lower extension part of the frame includes a lower fixing member fixed to the body portion of the frame, and a sliding member for the lower fixing member coupled to the lower fixing member so as to be slidable in the vertical direction with respect to the lower fixing member, And a resilient member for elastically biasing the sliding member for the lower fixing member downward. The method according to claim 1 or 6, The rear extension part of the frame includes a rear fixing member fixed to the body portion of the frame, and a rear fixing member sliding member coupled to the rear fixing member so as to be slidable in the vertical direction with respect to the rear fixing member, And an elastic member for elastically biasing the sliding member for the rear fixing member upward.

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