JP4054849B2 - Attachment for fiberscope - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an attachment for connecting an optical apparatus such as a fiberscope and an imaging apparatus.
[0002]
[Prior art]
Conventionally, when rescuing a victim in a place where a disaster such as an earthquake occurs and humans cannot enter (for example, a gap of debris in a disaster-stricken area), the debris can be relied on depending on the voice and sense of human beings. We have been working on the early rescue of the victims. Therefore, the location of the victims often relied on human experience. Moreover, since the position of the victim cannot be confirmed, it is necessary to carefully remove debris and the like, and it takes time to remove the debris. In addition, since it was unclear where the victims were buried, it was necessary to remove all debris and building debris for the time being.
[0003]
In recent years, as a countermeasure, a device for monitoring or recording using a fiberscope is used. This device connects the fiberscope and the lens unit of the image pickup device by a mount for each model, and is a device for confirming and recording an image taken by the objective lens provided at the tip of the fiberscope with the image pickup device. is there. In addition, this mount is to mount each other's lens portion by screwing.
[0004]
[Problems to be solved by the invention]
However, since the imaging apparatus has various lens positions (standards differ depending on manufacturers, models, etc.), it is necessary to use a mount suitable for each model.
[0005]
Further, since a mount suitable for each model is required for each model, there is a problem that only an image pickup apparatus that conforms to a certain standard can be used (limited to a specific model).
[0006]
In addition, since the conventional mount is a screw-in mount, if the displacement or twist occurs between the imaging device and the fiberscope, the mount is damaged and the lens joint is damaged.
[0007]
Therefore, an object of the present invention is to provide a fiberscope attachment that can be easily connected to a fiberscope regardless of the standard of the model of the imaging apparatus.
[0008]
[Means for Solving the Problems]
The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.
[0009]
The invention of claim 1 includes a first pedestal (11) that supports a fiberscope (20), a support shaft (12) connected to one of the first pedestals, and the support shaft. And a second pedestal (14) that supports an imaging device (30) for outputting an image captured by a fiberscope.
[0010]
According to the present invention, since the position of the imaging device can be adjusted according to the position of the fiberscope, it can be easily connected to the fiberscope regardless of the standard of the model of the imaging device.
[0011]
The invention of claim 2 is characterized in that the second pedestal has a function of sliding the support shaft.
[0012]
According to the present invention, since the position (height) of the imaging device can be easily changed regardless of the standard of the imaging device model, it can be connected to the fiberscope.
[0013]
The invention of claim 3 is characterized in that the second pedestal has a function of adjusting the position of the imaging device.
[0014]
According to the present invention, since the position (width) of the imaging device can be easily changed regardless of the standard of the imaging device model, it can be connected to the fiberscope.
[0015]
The invention of claim 4 fixes the eyepiece (21a) of the fiberscope supported by the first pedestal and the imaging lens (30a) of the imaging device supported by the second pedestal so as to face each other. A connection member (40) for connecting and / or shielding light between the eyepiece and the imaging lens is provided.
[0016]
According to the present invention, it is possible to cope with some twists and shifts, and to block light incident between the eyepiece lens and the imaging lens, so that a clear image can be output or recorded. In addition, by using a flexible material (for example, rubber or the like), the connection member can be connected even if the eyepiece lens and the imaging lens have different diameters.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
The fiberscope attachment according to the embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows an external view when a fiberscope, an imaging device, and a tripod are attached to the fiberscope attachment of the present invention. FIG. 2 shows the overall structure of the fiberscope attachment of the present invention. Is a plan view, FIG. 2B is a front view, and FIG. 3 is an external view of the fiberscope.
[0018]
The fiberscope attachment (hereinafter referred to as “auxiliary instrument 10”) is used to connect the fiberscope 20 and the imaging device 30 in order to output or record an image captured by the fiberscope 20 in the imaging device 30. belongs to.
[0019]
The auxiliary instrument 10 includes a first pedestal 11 for supporting the fiberscope 20, a support shaft 12 connected to one of the first pedestals 11, and the support shaft 12. And a second pedestal 14 that supports 30.
[0020]
The first pedestal 11 includes a rectangular bottom plate 11a, side walls 11b in which both end portions extending in the longitudinal direction of the bottom plate 11a are erected in a direction perpendicular to the bottom plate 11a, and one end portion of the bottom plate 11a. And a screw hole portion 11c provided in the vicinity bottom surface. The screw hole portion 11c is provided with a screw groove. The support shaft 12 is connected (coupled) to the screw hole portion 11c.
[0021]
The support shaft 12 has a cylindrical shape. The support shaft 12 includes a head portion 12a on one side and a thread groove 12b on the other end. The screw groove 12b is screwed into and connected to the screw groove of the screw hole portion 11c of the first base 11. Further, the outer shape h of the head 12a of the support shaft 12 is larger than the outer diameter h ₁ of the support shaft body 12c. A second pedestal 14 is coupled to the support shaft 12.
[0022]
Furthermore, the head end of the support shaft 12 is provided with a screw hole 12d for connecting to a commercially available tripod 35 or the like. By connecting the tripod 35, the fiberscope 13, the imaging device 30 and the like can be fixed, so that it is easy to take a picture.
[0023]
The second pedestal 14 is provided with a through hole 14 a in one part and a long hole 14 b on the other side so as to extend in the longitudinal direction of the pedestal 14. The long hole 14b is a through hole.
[0024]
By inserting the through hole 14 a into the main body 12 c of the support shaft 12, the second pedestal 14 is connected to the support shaft 12. In addition, a through hole 14c having a thread groove is provided at a predetermined position of the second base 14 so as to be orthogonal to the through hole 14a. The through hole 14c is provided with a position adjusting member 15 including a knob 15a and a screw. By rotating the knob 15a, the screw of the position adjusting member 15 protrudes into the through hole 14a in which the support shaft 12 is inserted, and supports the second pedestal 14 in order to press the support shaft main body 12c. The shaft 12 can be fixed at a predetermined position. Since the second pedestal 14 can be slid on the support shaft by the position adjusting member 15, the position (height) of the imaging device 30 can be adjusted according to the size of the imaging device 30. . The head of the support shaft 12 serves as a stopper that determines the range in which the second pedestal 14 slides.
[0025]
Further, a rectangular elastic body 16 is provided on the surface of the second pedestal 14 and around the long hole 14b. The imaging device 30 is provided on this elastic body. The elastic body 16 is provided to absorb the shock / vibration applied to the second pedestal 14 and the like, and to prevent transmission to the imaging device 30. The elongated hole 14b is provided with a fixing member 17 for fixing the imaging device 30. The fixing member 17 includes a thread groove 17a, a shaft 17b, and a knob 17c. The outer shape of the screw groove 17a is formed larger than the outer shape of the shaft 17b. Further, the outer shape of the knob 17c is formed larger than the outer shape of the shaft 17b. The second pedestal 14 is sandwiched between the screw groove 17a and the knob 17c. An imaging device 30 is disposed on the second pedestal 14. A screw hole for screwing with the screw groove 17a is provided in a predetermined portion of the bottom surface of the imaging device 30. That is, the imaging device is fixed on the second pedestal by turning the knob 17c. Further, the position of the imaging device 30 can be freely adjusted within the range of the long hole 14b.
[0026]
The fiber scope 20 supported by the first pedestal 11 includes a large number of optical fibers and an arm member 21 that covers a bundle in which the large number of optical fibers are regularly arranged. The arm member 21 has an objective lens 21b at one end and an eyepiece 21a at the other end. One end of the optical fiber is optically connected to the objective lens 21b, and the other end of the optical fiber is connected to the eyepiece 21a. Optically connected. Thereby, an image is projected by the objective lens 21b, and a similar image is taken out from the eyepiece lens 21a.
[0027]
The arm member 21 is divided into an insertion portion 23 and a head portion 23a (swinging portion). As shown in FIG. 3, the head portion 23a can freely operate the tip provided with the objective lens 21b within a range of 90 degrees in the horizontal direction and 120 degrees in the vertical direction. That is, the head portion 23a can rotate left and right and up and down within the above range.
[0028]
In addition, a casing 20 a including an operation unit 22 is provided at a predetermined position of the arm member 21 on the eyepiece lens side. The operation unit 22 includes adjustment knobs 22a and 22a for adjusting (rotating or the like) the head unit having the objective lens in the photographing direction. Further, the adjustment knob 22a includes a brake lever 22b (stopper) for fixing a position where the head portion 23a is positioned by rotation or the like.
[0029]
In addition, a light emitting unit 24 is provided at the tip of the arm member 21 on the objective lens side. In addition, a power source unit 25 is provided inside the casing to supply electricity to the light emitting unit 24. The power supply unit 25 includes a battery 25a that generates an electromotive force. The battery 25a is accommodated by a battery lid 25b. The power supply unit 25 is electrically connected to an optical fiber, transmits light through the optical fiber, emits light from the light emitting unit 24, and can illuminate the object to be processed.
[0030]
By doing in this way, it can be used even in a dark place and / or in an explosive gas atmosphere. In addition, an illumination switch 25c for turning on and off the light is provided at a predetermined position of the operation unit 22.
[0031]
A heat radiating plate 26 that radiates heat released from the optical fiber is disposed at a predetermined position of the casing 20a.
[0032]
In addition, a sound collecting microphone is provided inside the head portion 23 a of the arm member 21. Accordingly, an earphone 27 for outputting the sound collected from the sound collecting microphone and a volume adjusting knob 27a for adjusting the sound volume are provided at a predetermined position of the operation unit 22.
[0033]
Specifically, the casing 20 a is supported on the first pedestal 11. The first pedestal 11 is provided with fixing members 13 and 13 for fixing the casing 20a. The fixing member 13 is, for example, a magic tape (R). Further, the first pedestal 11 is provided with a through hole 11d at a predetermined position. This is because a commercially available fiberscope is usually provided with a handle, so that the handle portion (usually a cylindrical shape) is inserted. By inserting the handle, the fiberscope can be easily fixed (arranged) to the first base 11.
[0034]
Further, the imaging device 30 supported by the second pedestal 14 includes an imaging lens 30a, an imaging device fixing hole 30b, a liquid crystal screen 30c or a viewfinder for viewing a captured image, and recording. An operation unit 30d for performing an operation. Preferably, a digital camera or video camera having a zoom function is used.
[0035]
The imaging lens 30a varies depending on the manufacturer's standard. For example, the imaging lens 30a is provided in the upper left portion when viewed from the front. Similarly, the imaging device fixing hole 30b is provided on the bottom surface, the liquid crystal screen 30c or the viewfinder is provided on the back surface, and the operation unit 30d is provided on a flat surface.
[0036]
Here, the usage method of an auxiliary device is demonstrated.
[0037]
First, the casing 20a of the fiberscope 20 is disposed on the bottom plate 11a sandwiched between the side walls 11b and 11b of the first base 11. In that case, it arrange | positions so that it may have the eyepiece 21a of the fiberscope 20 in the support-axis direction connected with the baseplate 11a. After positioning, the fixing members 13 are firmly fixed to the first base 11.
[0038]
Next, the imaging device 30 is disposed on the second pedestal 14. The imaging device fixing hole of the imaging device 30 and the screw groove 17 a of the fixing member 17 of the second pedestal 14 are screwed together, and the imaging device 30 is fixed at a predetermined position of the second pedestal 14. The position of the imaging device 30 can be adjusted by sliding the elongated hole 14b in the longitudinal direction of the second base 14 by loosening the knob 17c of the fixing member 17. Further, the second pedestal 14 can be adjusted in the height direction by sliding on the support shaft body by loosening the knob 15a of the position adjusting member 15. The fixing member 17 and the adjustment member 15 are used to adjust the position of the imaging device (up / down, left / right, and front / rear positions) so that the imaging lens 30a of the imaging device 30 and the eyepiece 21a of the optical fiber scope 20 face each other. Adjust and fix. Further, a connecting member 40 for connecting a light-shielding lens and a lens having a different size (imaging lens, eyepiece lens) is attached between the imaging lens 30a and the eyepiece lens 21a. The connection member 40 uses, for example, a stretchable elastic body (a flexible material (such as rubber)), and connects the imaging lens 30a and the eyepiece lens 21a. Further, the shape of the connecting member 40 is a hollow shape, and is formed so that the outer shape gradually spreads from one end to the other end side. The connection member 40 can block the incidence of light, and can connect the eyepiece 21a of the fiberscope 20 and the imaging lens 30a of the imaging device 30 regardless of the size of the lens on the imaging device side. it can. In addition, since the connection member 40 uses a flexible material, a load is not applied to the connection portion, and there is little risk of damage to devices such as the fiberscope 20 and the imaging device 30. Further, since the connecting member 40 expands and contracts, it can be attached in close contact with the eyepiece and the imaging lens.
[0039]
As mentioned above, although embodiment of the auxiliary tool was shown, it is not limited to this embodiment, It can implement with a various form. For example, the first pedestal 11 that supports the fiberscope 20 is not limited to a linear pedestal, and may be provided for various scopes such as a round shape. Further, the fixing member 13 for supporting (fixing) the fiberscope 20 may not be the magic tape (R). The imaging device 30 may use a CCD camera or the like. The imaging device 30 does not necessarily need to be recordable, and may be any device that can display at least an image. Thus, it can be implemented in various forms.
[0040]
【The invention's effect】
As described above, the attachment for a fiberscope according to the present invention can be easily connected to a fiberscope without being limited to the model of a specific imaging apparatus.
[Brief description of the drawings]
FIG. 1 is an external view of a fiberscope attachment of the present invention when a fiberscope, an imaging device, and a tripod are attached.
2A and 2B show the overall structure of an attachment for a fiberscope of the present invention, FIG. 2A is a plan view, and FIG. 2B is a front view.
FIG. 3 is an external view of a fiberscope.
[Explanation of symbols]
11 First pedestal 12 Support shaft 14 Second pedestal 20 Fiber scope 21a Eyepiece 30 Imaging device 30a Imaging lens 40 Connecting member

Claims (4)

A first pedestal that supports the fiberscope;
A support shaft coupled to one of the first pedestals;
A second pedestal connected to the support shaft and supporting an imaging device for outputting an image captured by the fiberscope;
An attachment for a fiberscope characterized by comprising: The attachment for a fiberscope according to claim 1, wherein the second base has a function of sliding the support shaft. The attachment for a fiberscope according to claim 1 or 2, wherein the second pedestal has a function of adjusting a position of the imaging device. Fixing the eyepiece of the fiberscope supported by the first pedestal and the imaging lens of the imaging device supported by the second pedestal so as to face each other, connecting the eyepiece and the imaging lens, and / or Alternatively, the fiberscope attachment according to any one of claims 1 to 3, further comprising a connection member for shielding light.

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