JP2021047337A - Optical fiber folder - Google Patents

Abstract

To provide an optical fiber folder having better working efficiency than before.SOLUTION: An optical fiber holder 22 disclosed herein has a member 36 made of elastomer in porous structure and a through hole 22A that passes through it, and an optical fiber 20 is pressed into the through hole 22A and is frictionally and engagingly locked to it, such that work for holding the optical fiber 20 in the optical fiber holder 22 can be performed easily. Contamination of a light emission surface of the optical fiber 20 by an adhesive is prevented and exchange work of the optical fiber 20 can also be performed easily.SELECTED DRAWING: Figure 6

Description

The present invention relates to an optical fiber folder that holds an end of an optical fiber.

Conventionally, as this kind of optical fiber folder, one used for capturing the light emitting state of the light emitting portion on the outer surface of a server or other electronic device with a camera through the optical fiber is known (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2013-254781 (Fig. 5, paragraph [0034])

However, in the above-mentioned conventional optical fiber folder, it is necessary to apply an adhesive to the side surface of the optical fiber and insert the optical fiber into the through hole of the optical fiber folder. Therefore, there has been a demand for the development of an optical fiber folder having better workability than before.

The invention of claim 1 made to solve the above problems is to capture the light emitting state of the light emitting unit (92) on the outer surface of the server (90) or other electronic device with the camera (30) through the optical fiber (20). An optical fiber holder (21, 22, 61-64) that holds the end face of the optical fiber (20) in a state of being arranged to face the camera (30) or the light emitting unit (92), and is manufactured by Elastoma. A fixing member (21, 36, 62G, 63) for fixing the grip member (21, 36, 62G, 63) and the grip member (21, 36, 62G, 63) at a position facing the camera (30) or the light emitting portion (92). 21K, 35S, 35Z, 39C, 62K) and the grip member (21, 36, 62G, 63) are passed through the camera (30) or the light emitting portion (92) in the opposite direction to the optical fiber (21K, 35S, 35Z, 39C, 62K). An optical fiber holder (21, 22, 61-64) including through holes (21B, 22A) into which the end portion of 20) is press-fitted.

The optical fiber holders (21, 22, 61 to 64) of the present disclosure have through holes (21B, 22A) penetrating the grip members (21, 36, 62G, 63) made of Elastoma, and have through holes (21B, 22A). Since the optical fiber (20) is press-fitted into (21B, 22A) and frictionally locked, the work of holding the optical fiber (20) in the optical fiber holder (21, 22, 61-64) is performed by applying an adhesive. This can be done more easily than the conventional one, and it is possible to prevent the light entering surface or the light emitting surface of the optical fiber (20) from being contaminated with the adhesive.

Overall configuration diagram of the server monitoring system according to the first embodiment of the present disclosure Perspective view of server and server monitoring device Front view of server equipment Side sectional view of the optical fiber folder Side sectional view of the shading box Perspective view of fiber optic folder Side sectional view of the optical fiber folder An exploded perspective view of the optical fiber folder Side sectional view of the optical fiber folder of the second embodiment Side sectional view of the optical fiber folder of the third embodiment Side sectional view of the optical fiber folder of the fourth embodiment Planosection of the fiber optic folder Front view of the optical fiber folder of the fifth embodiment

[First Embodiment]
Hereinafter, the optical fiber folders 21, 22, and 33 used in the server monitoring device 10 will be described with reference to FIGS. 1 to 8. The server monitoring system 100 shown in FIG. 1 is used by a borrower 101 who rents a server 90 from a rental server company to monitor the state of the server 90. As shown in the figure, the server 90 can be accessed from the terminal 104 owned by the borrower 101 of the server 90 (hereinafter, referred to as “monitorer 101”) via the communication network 103. The server monitoring system 100 monitors the status of the server 90 by being connected to the server monitoring device 10 that monitors the status of the server 90 at the place where the server 90 is installed and the server monitoring device 10 via the communication network 103. It is provided with a server state determination device 105 that notifies 101.

The server 90 is installed in the server room 95 owned by the rental server company of the server 90. Further, as shown in FIG. 2, the server 90 is composed of a plurality of server devices 91, and the server devices 91 are fixed to the server rack 93 in a vertically arranged state. Further, on the front side of the server rack 93, a rotating door 94 that rotates around one side thereof is provided, and the rotating door 94 covers the front surfaces of the plurality of server devices 91. .. The server room 95 is provided with a plurality of servers (not shown) other than the server 90, and is rented by a third party other than the observer 101.

Each server device 91 has, for example, a rectangular parallelepiped shape, and when a plurality of light emitting units 92A to 92E (hereinafter, "light emitting units 92A to 92E" are collectively referred to) on the front surface 91Z (which is also the front surface of the server 90) are collectively referred to. A "light emitting unit 92") is provided. Then, the state of the server device 91, which is an electronic device, is displayed according to the lighting state of the light emitting unit 92. Specifically, FIG. 3 shows an example of the front surface 91Z of the server device 91. Then, the lighting states of the light emitting units 92A to 92E shown in the figure indicate whether the power of the server device 91 is turned on / off, whether or not there is a failure, whether or not the hard disk drive 91A is operating, whether or not the LAN communication status is good, and the like. It depends on.

As described above, the light emitting state of the plurality of light emitting units 92 represents the state of the server 90. Therefore, if a camera is installed in the server room 95 and the light emitting state of the light emitting unit 92 is imaged, the state of the server 90 can be grasped. However, as described above, since a third-party server other than the observer 101 is also installed in the server room 95, it is prohibited to take an image of the inside of the server room 95 with a camera from the viewpoint of security. Has been done. On the other hand, the server monitoring device 10 of the present embodiment is configured to be able to image the light emitting state of the light emitting unit 92 while avoiding security problems.

Hereinafter, a specific configuration of the server monitoring device 10 will be described. Further, in the following description, one end of the optical fiber 20 having an end face which is an incoming light surface is appropriately referred to as a "starting end portion", and the other end having an end surface which is an demitsu surface is appropriately referred to as a "terminating portion". ".

As shown in FIG. 2, the server monitoring device 10 includes a plurality of optical fibers 20 that can be optically coupled to a plurality of light emitting units 92 provided in the server 90. Further, a plurality of through holes 94A (see FIG. 4) facing the plurality of light emitting portions 92 of the server 90 are drilled in the rotating door 94 provided on the front surface of the rack of the server 90, and the back surface of the rotating door 94 is formed. The optical fiber holder 21 shown in FIG. 4 is coaxially fixed to the through hole 94A.

The optical fiber holder 21 is made of, for example, an elastomer having a porous structure, and has a columnar shape as a whole. Further, a through hole 21B penetrates through the central portion of the optical fiber holder 21, and one end of the through hole 21B is stepped in diameter to form a receiving recess 21A. Further, in the optical fiber holder 21, the end surface on the side opposite to the receiving recess 21A is fixed to the back surface of the rotating door 94 with, for example, an adhesive. Then, when the rotating door 94 is closed, the light emitting portion 92 is received by the receiving recess 21A. Regarding the optical fiber holder 21, the adhesive layer 21K formed by solidifying the above-mentioned adhesive material corresponds to the "fixing member" in the claims, and the entire optical fiber holder 21 is in the claims. Corresponds to the "grip member" of.

Further, the through hole 94A of the rotating door 94 is slightly larger than the outer diameter of the optical fiber 20, and the through hole 21B of the optical fiber holder 21 is slightly smaller than the outer diameter of the optical fiber 20. Then, the start end portion of the optical fiber 20 is inserted so as to expand the through hole 21B, that is, the start end portion of the optical fiber 20 is press-fitted into the through hole 21B, and the light entry surface of the optical fiber 20 is the inner surface of the receiving recess 21A. It is arranged flush with each other. In this way, the starting end portion of the optical fiber 20 is held by the optical fiber holder 21 by frictional locking due to the elastic reaction force of the optical fiber holder 21.

When the optical fiber 20 is press-fitted into the through hole 21B of the optical fiber holder 21, an abutting member (not shown) is inserted into the receiving recess 21A, and the light entering surface of the optical fiber 20 hits the abutting member. It is preferable that the light entry surface of the optical fiber 20 is flush with the inner surface of the receiving recess 21A by press-fitting to a position where it comes into contact.

Further, the optical fiber holder 21 may be configured such that a cup-shaped translucent member is housed in the receiving recess 21A so that the bottom thereof overlaps the inner surface of the receiving recess 21A. Then, the optical fiber 20 can be inserted into the through hole 21B and abutted against the bottom surface of the translucent member to position the optical fiber 20 at the regular position of the optical fiber holder 21 and to reinforce the optical fiber holder 21. Is planned.

As shown in FIG. 5, the terminal portions of the plurality of optical fibers 20 are held by the optical fiber holder 22 inside the light-shielding box 31 that blocks light from the outside, and the light emitting surfaces of the plurality of optical fibers 20 are exposed. It is arranged to face the camera 30.

The optical fiber holder 22 has a plate shape that stands up in the light-shielding box 31, and includes a plurality of through holes 22A that penetrate in the plate thickness direction. Further, as shown in FIG. 6, the plurality of through holes 22A are arranged in a matrix, for example, and the terminal portions of the plurality of optical fibers 20 are arranged in the plurality of through holes 22A, and as shown in FIG. 7, they are arranged. The light emitting surface of the optical fiber 20 is arranged flush with the front surface of the optical fiber holder 22 facing the camera 30.

Further, as shown in FIG. 2, the camera 30 is connected to the image transmission terminal 40 and receives an instruction from the image transmission terminal 40 to take an image of the front surface of the optical fiber holder 22. As a result, an image of a light emitting pattern including all the light emitting surfaces of the plurality of optical fibers 20 held in the optical fiber holder 22 is captured in the image transmission terminal 40. Then, it becomes possible to transmit to the server state determination device 105 of the observer 101 via the above-mentioned communication network 103 shown in FIG.

In order to read the state of the server device 91 from the image of the light emission pattern on the server state determination device 105 side, the terminal portions of the plurality of optical fibers 20 have a plurality of through holes of the optical fiber holder 22 according to a predetermined standard. It is arranged in 22A.

The optical fiber holder 22 has the following structure for holding the end portion of each optical fiber 20 in each through hole 22A. That is, as shown in FIG. 6, the optical fiber holder 22 includes a bracket 35, a grip member 36, and a positioning member 37 in an overlapping manner.

As shown in FIG. 8, the bracket 35 includes, for example, a first plate portion 35T and a second plate portion 35S which are formed by bending a sheet metal into an L shape and are orthogonal to each other. Further, a pair of bolt insertion holes 35D are formed in the second plate portion 35S, and the second plate portion 35S is fixed to the bottom surface of the light-shielding box 31 (see FIG. 5) by the bolts B passed through the holes.

Further, on the front surface of the first plate portion 35T (the surface opposite to the second plate portion 35S), cylindrical nuts 35A are fixed (for example, welded or bonded) at four corners and protrude forward. Further, in the first plate portion 35T, the plurality of through holes 22A described above are formed in a matrix shape in a portion surrounded by a plurality of cylindrical nuts 35A.

The grip member 36 is made of, for example, an elastomer having a porous structure, has a substantially same front surface shape as the first plate portion 35T, and has a plate shape thicker than that of the first plate portion 35T. Further, the plate thickness of the grip member 36 is the same as the axial length of the cylindrical nut 35A. Further, the grip member 36 is provided with assembly holes 36A at four corners coaxial with the plurality of cylindrical nuts 35A of the bracket 35, and a plurality of through holes 22A coaxially with the plurality of through holes 22A of the bracket 35. Are formed side by side in a matrix. Then, as shown in FIG. 7, the grip member 36 is superposed on the front surface of the first plate portion 35T, and is assembled in a state in which a plurality of cylindrical nuts 35A are fitted into the assembly holes 36A.

As shown in FIG. 8, the positioning member 37 is made of, for example, a non-foamed synthetic resin and has a plate shape slightly thinner than the grip member 36. Further, the positioning member 37 is provided with assembly holes 37A at the four corners coaxial with the plurality of assembly holes 36A of the grip member 36, and a plurality of through holes coaxially with the plurality of through holes 22A of the grip member 36. 22A are arranged and provided in a matrix. Then, as shown in FIG. 7, the positioning member 37 is overlapped on the front surface of the grip member 36, and the bolt N passed through the plurality of assembly holes 37A is tightened to the spiral holes in the plurality of cylindrical nuts 35A. .. As a result, the grip member 36 is reinforced so as to be sandwiched between the first plate portion 35T of the bracket 35 and the positioning member 37. Even if the bolt N is strongly tightened, the tip surface of the cylindrical nut 35A comes into contact with the positioning member 37, so that excessive compression deformation of the grip member 36 can be prevented.

Regarding the optical fiber holder 22, the first plate portion 35T and the positioning member 37 correspond to the "first and second reinforcing plate members" in the claims, and the second plate portion 35S claims the patent. Corresponds to the "fixing member" in the range of.

The inner diameter of each through hole 22A of the bracket 35 and the positioning member 37 described above is slightly larger than the outer diameter of the optical fiber 20, and the inner diameter of each through hole 22A of the positioning member 37 is larger than the inner diameter of each through hole of the bracket 35. It is slightly smaller than the inner diameter of 22A. On the other hand, each through hole 22A of the grip member 36 is slightly smaller than the outer diameter of the optical fiber 20. Then, the terminal portions of the plurality of optical fibers 20 are inserted into the through holes 22A of the optical fiber 20 from the bracket 35 side, and the through holes 22A of the grip member 36 are expanded and passed through (that is, press-fitted and passed). However, the light emitting surface is arranged at a position where it is flush with the front surface of the optical fiber holder 22 (specifically, the front surface of the positioning member 37). In this way, the plurality of optical fibers 20 are held by the optical fiber holder 22 by frictional locking due to the elastic reaction force of the grip member 36. Further, the end portions of the plurality of optical fibers 20 are positioned at positions arranged in a matrix by a positioning member 37 having a higher rigidity than the grip member 36.

When inserting the plurality of optical fibers 20 into the plurality of through holes 22A of the optical fiber holder 22, if a plate member or the like is superposed on the front surface of the positioning member 37, the plurality of optical fibers 20 The light emitting surface of the above can be easily arranged flush with the front surface of the positioning member 37. Further, a transparent or translucent resin or glass translucent plate is laminated and fixed on the front surface of the positioning member 37 on the opposite side of the grip member 36, and the light emitting surfaces of the plurality of optical fibers 20 are transparent. It may be configured to be abutted against a light plate and positioned.

As shown in FIG. 5, the optical fiber holder 22 also holds the end portion of the reflected light optical fiber 27. The starting end of the reflected light optical fiber 27 is held by an optical fiber holder 33 facing the rotating door 94 of the server rack 93. Further, the optical fiber holder 33 holds the end portion of the emission optical fiber 28 whose start end portion is optically coupled to the light source 29. Then, only when the rotating door 94 is arranged in the closed position, the light from the emitted light optical fiber 28 is reflected by the rotating door 94 and enters the start end portion of the reflected light optical fiber 27. It has become. As a result, information on whether or not the rotating door 94 is closed is also taken into the image transmission terminal 40 via the camera 30.

The optical fiber holder 33 is made of, for example, an elastoma having a porous structure, and has a pair of through holes 33A extending non-parallel so as to gradually approach each other, and the light for emission light is provided in the pair of through holes 33A. The end portion of the fiber 28 and the start end portion of the reflected light optical fiber 27 are press-fitted and held. Further, the optical fiber holder 33 is fixed to a support column 94S in the vicinity of the rotating door 94 with an adhesive layer 33K, and is arranged at a position where the rotating door 94 does not interfere with the rotation.

As shown in FIG. 5, the optical fiber holder 22 also holds the terminal portion of the optical fiber 26 for ambient light. The starting end of the ambient light optical fiber 26 is arranged in the server room 95. As a result, the information related to the room light of the server room 95 is also taken into the image transmission terminal 40 via the camera 30.

The above is a description of the configuration of the server monitoring device 10. The server state determination device 105 is, for example, a personal computer owned by the observer 101, and displays an image of the above-mentioned light emission pattern transmitted from the image transmission terminal 40 on the monitor. Further, the server state determination device 105 analyzes the light emission pattern based on the image data and determines the state of the server 90. Then, if there is no failure in any of the server devices 91, it is notified that it is normal, and if there is a failure in any of the server devices 91, the failed server device 91 and the cause of the failure (for example). , Hard disk failure, network connection error, etc.)

This concludes the description of the configuration of this embodiment. According to the server monitoring device 10 of the present embodiment, the start ends of the plurality of optical fibers 20 are optically coupled to the plurality of light emitting units 92 indicating the operating status of the server 90, while the end portions are arranged in advance. Since the image of the light emission pattern of the light emitting surface at the terminal portion is transmitted to the observer 101, the state of the server 90 can be easily grasped from a remote place.

Further, the optical fiber holders 21, 22, and 33 used in the server monitoring device 10 have through holes 21B, 22A, and 33A that penetrate through the members made of elastoma having a porous structure, and the through holes 21B, Since the optical fiber 20 is press-fitted into the 22A and 33A and frictionally locked, the work of holding the optical fiber 20 in the optical fiber holders 21, 22, 33 can be easily performed. Specifically, in order to hold the optical fiber 20 in the through holes 21B, 22A, 33A, it is necessary to apply an adhesive to the outer surface of the optical fiber 20 or mechanically clamp the optical fiber 20. Instead, the optical fiber 20 can be easily held by the optical fiber holders 21, 22, and 33. Further, it is possible to prevent the light entering surface or the light emitting surface of the optical fiber 20 from being contaminated with the adhesive, and it is possible to easily replace the optical fiber 20. Moreover, since the hardness of the member made of elastomer having a porous structure is lower than that of the optical fiber 20, it is possible to prevent the outer surface of the optical fiber 20 from being scratched. After holding the optical fiber 20 in the optical fiber holders 21 and 22, 33, the optical fiber 20 may be fixed to the optical fiber holders 21 and 22 and 33 with an adhesive. In that case, since the optical fiber 20 is held in the optical fiber holders 21, 22, and 33, the adhesive can be easily applied.

Here, the elastomer having a porous structure contained in the above-mentioned optical fiber holders 21 and 22,33 and the later-described optical fiber holders 61 to 64 (hereinafter referred to as "optical fiber holders 21 and 22 and the like") is ethylene-based or urethane. Any of system, styrene type, olefin type, ester type and the like may be used. Further, it may be vulcanized rubber. However, considering the grip force of the optical fiber holders 21 and 22 on the optical fiber 20, the elastomer is preferably ethylene-based or urethane-based, and EVA (ethylene vinyl acetate copolymer: ethylene vinyl acetate copolymer), which is an ethylene-based elastomer, is more suitable. preferable. Further, the porous structure may be any of a foamed structure such as closed cells or open cells, a structure formed by peas foam molding, and a porous structure other than these. However, in consideration of shape quality and strength, a closed cell structure is preferable.

Further, the elastomer having a porous structure contained in the above-mentioned optical fiber holders 21 and 22 and the like may be used as an elastomer having a non-porous structure. However, in consideration of operability and weight reduction when the optical fiber 20 is inserted (press-fitted) into the through holes 21B, 22A or the like of the optical fiber holders 21 and 22, the elastomer having a porous structure is preferable. In particular, as the elastomer having a porous structure contained in the above-mentioned optical fiber holders 21 and 22 and the like, foamed EVA having a closed cell structure is preferable, and the foaming ratio is preferably 5 to 20 times, more preferably 12 times. is there.

[Second Embodiment]
FIG. 9 shows the optical fiber holder 61 of this embodiment. The optical fiber holder 61 is different from the optical fiber holder 61 of the first embodiment in that it is directly fixed to the camera 30. Specifically, the optical fiber holder 61 is formed by fitting the light transmitting plate 37Z and the grip member 36 to one end of the support member 39. The support member 39 is composed of a non-transparent member, and corresponds to, for example, a cylindrical portion 39C (corresponding to a “fixing member” within the scope of claims) from the narrowed end of the quadrangular pyramid-shaped pyramid tubular portion 39B. ) Is extended, while the quadrangular frame portion 39A is extended from the end on the expanded side. Further, the translucent plate 37Z has a transparent or translucent plate shape, and is fitted in the boundary portion between the frame portion 39A and the cone-shaped tubular portion 39B. Further, the grip member 36 is an elastomer having a porous structure, has a shape in which a plurality of through holes 22A are arranged in a matrix in a quadrangular plate shape, and is fitted to a frame portion 39A, for example. It is fixed with an adhesive.

Then, the optical fiber 20 is press-fitted and held in the plurality of through holes 22A, and the cylindrical portion 39C is fixed to the camera 30, so that the light emitting surfaces of the plurality of optical fibers 20 can be imaged. The support member 39 of the present embodiment may have a conical shape, the frame portion 39A may have a cylindrical shape, and the grip member 36 may have a disc shape.

[Third Embodiment]
FIG. 10 shows the optical fiber holder 62 of this embodiment. The optical fiber holder 62 includes a cylindrical support member 62K instead of the support member 39 of the second embodiment. Further, a transparent or semi-transparent disc-shaped translucent plate 62B is fitted and fixed at an intermediate position in the axial direction of the support member 62K with an adhesive or the like, and one end side of the support member 62K from the translucent plate 62B. In addition, a columnar grip member 62G is fitted and fixed with an adhesive or the like. Further, the grip member 62G is formed with a plurality of through holes 22A extending in parallel with the axial direction of the support member 62K. The other end of the support member 62K is fixed to the camera 30.

The optical fiber holder 62 is used, for example, on a power lamp (corresponding to the “light emitting part” in the claims) of a plurality of surveillance cameras (corresponding to the “electronic device” in the claims). The terminal portions of the plurality of optical fibers 20 arranged so as to face each other are held. Then, it is possible to easily monitor the presence or absence of abnormalities in all cameras. The support member 62K corresponds to the "fixing member" in the claims.

[Fourth Embodiment]
11 and 12 show the optical fiber holder 63 of this embodiment. The optical fiber holder 63 is replaced with, for example, the plurality of optical fiber holders 21 (see FIG. 4) of the first embodiment, and is, for example, adhered to the back surface of the rotating door 94 like the optical fiber holder 21. It is fixed with an agent. Specifically, the entire optical fiber holder 63 has a horizontally long plate shape corresponding to the front shape of the server device 91, and the entire optical fiber holder 63 is formed by a porous elastomer. Further, the optical fiber holder 63 is provided with a plurality of receiving recesses 21A corresponding to the size of each server device 91 at a position corresponding to the light emitting portion 92 on the front surface of the server device 91. Then, as shown in FIG. 12, a through hole 21B into which the optical fiber 20 is press-fitted is provided coaxially with each receiving recess 21A.

[Fifth Embodiment]
FIG. 13 shows the optical fiber holder 64 of this embodiment. The optical fiber holder 64 is replaced with, for example, the optical fiber holder 22 (see FIG. 6) of the first embodiment, and is a plate-shaped grip member 36 having a plurality of through holes 22A arranged in a matrix. It has a structure in which a support member 35X is embedded inside. The support member 35X is made of, for example, a metal or non-foamed resin, has a lattice structure, and is arranged at the center of the grip member 36 in the cubic thickness direction. Further, the plurality of through holes 22A are arranged so as to penetrate the squares of the lattice. Further, the support member 35X is provided with a pair of leg portions 35Y protruding downward from the grip member 36, and a bolt is passed through a through hole formed in a plate portion 35Z connected to the lower end portion of the leg portions 35Y to block light. It is fixed to the bottom surface of the box 31 (see FIGS. 2 and 5). The plate portion 35Z corresponds to the "fixing member" in the claims.

20 Optical fiber 21,22,33,61-64 Optical fiber holder 21,36,62G, 63 Grip member (
21B, 22A, 33A Through hole 21K Adhesive layer (fixing member)
30 Camera 35Z Plate (fixing member)
35S 2nd plate (fixing member)
35T 1st plate (reinforcing plate member)
35Z plate (fixing member)
37 Positioning member (reinforcing plate member)
39C Cylindrical part (fixing member)
61-64 Optical fiber holder 62K Support member (fixing member)
90 server 92 light emitting part

Claims (8)

In order to capture the light emitting state of the light emitting unit (92) on the outer surface of the server (90) or other electronic device with the camera (30) through the optical fiber (20), the end face of the optical fiber (20) is captured by the camera (30). ) Or an optical fiber holder (21, 22, 61-64) that is held so as to face the light emitting unit (92).
Elastomer grip members (21, 36, 62G, 63) and
A fixing member (21K, 35S, 35Z, 39C, 62K) for fixing the grip member (21, 36, 62G, 63) at a position facing the camera (30) or the light emitting unit (92).
A through hole (21, 36, 62G, 63) that penetrates the grip member (21, 36, 62G, 63) in a direction facing the camera (30) or the light emitting portion (92) and press-fits the end portion of the optical fiber (20). 21B, 22A) and an optical fiber holder (21, 22, 61-64). The optical fiber holder (21, 22, 61-64) according to claim 1, wherein the elastomer constituting the grip member (21, 36, 62G, 63) has a porous structure. The optical fiber holder (21, 22, 61-64) according to claim 1 or 2, wherein the elastomer constituting the grip member (21, 36, 62G, 63) is EVA or urethane. The optical fiber holder (21, 22, 61-64) according to claim 1, wherein the elastomer constituting the grip member (21, 36, 62G, 63) is a foamed EVA having a closed cell structure. The optical fiber holder (21, 22, 61-64) according to claim 4, wherein the foaming ratio of the foamed EVA is 5 to 20 times. The grip member (36, 62G) is arranged so as to face the camera (30).
The optical fiber holder (22, 61) according to any one of claims 1 to 5, wherein a plurality of through holes (22A) are formed in the grip member (36, 62G) and arranged in a matrix. , 62, 64). The grip member (36) has a plate shape in which the direction facing the camera (30) or the light emitting portion (92) is the thickness direction.
It has first and second reinforcing plate members (35T, 37) that sandwich the grip member (36) from both sides in the plate thickness direction.
The through hole (22A) penetrates the first and second reinforcing plate members (35T, 37) and the grip member (36) in a straight line, and also penetrates the first and second reinforcing plate members (35T, 37) in a straight line. The optical fiber holder (22) according to any one of claims 1 to 6, wherein the inner diameter of the through hole (22A) of 35T, 37) is larger than the outer diameter of the optical fiber (20). The optical fiber according to claim 7, wherein the fixing member is formed with a bolt insertion hole (35D) in a plate portion (35S) extended from the first or second reinforcing plate member (35T, 37). Holder (22).

Images