JP2005107308A - Light guide - Google Patents
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- JP2005107308A JP2005107308A JP2003342166A JP2003342166A JP2005107308A JP 2005107308 A JP2005107308 A JP 2005107308A JP 2003342166 A JP2003342166 A JP 2003342166A JP 2003342166 A JP2003342166 A JP 2003342166A JP 2005107308 A JP2005107308 A JP 2005107308A
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- light guide
- face
- light
- resin material
- emission end
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- 229920005989 resin Polymers 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 22
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 17
- 238000011109 contamination Methods 0.000 claims description 15
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- 239000011941 photocatalyst Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000002519 antifouling agent Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 239000013307 optical fiber Substances 0.000 abstract description 8
- 239000011521 glass Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Surface Treatment Of Glass (AREA)
- Catalysts (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
本発明は、光源から出射された光を、光ファイバライトガイドを通して所望の部位に照射する照明装置に関し、さらに詳しくは、紫外線硬化性有機樹脂材料用照射装置に採用される光伝送体として有用なライトガイドの改良に関するものである。 The present invention relates to an illuminating device that irradiates a desired portion with light emitted from a light source through an optical fiber light guide, and more particularly, is useful as an optical transmission body employed in an irradiating device for an ultraviolet curable organic resin material. This relates to the improvement of the light guide.
近年、接着剤としての紫外線硬化性有機樹脂材料（以下、“樹脂材料”と略記する）の利用が盛んになってきている。そして、該樹脂材料を硬化させる装置の一例として、樹脂材料を容器中に載置した状態で、先端部が該容器に挿入されたライトガイドにより紫外線を照射する紫外線照射装置が知られている。
図３には、この装置の側面図が示されている。ここで、（１）は光ファイバ素線束から構成されたライトガイド、（１ａ）はライトガイド（１）を構成する光ファイバ素線束、（１ｂ）はライトガイド（１）の出射端面、（１ｃ）はその入射端面、（５）は紫外線光源、（６）は樹脂材料が塗布された被接着体、そして（７）は容器である。この容器（７）には、ライトガイド（１）の出射端面（１ｂ）が挿入され、且つ該出射端面（１ｂ）の前方には樹脂材料（６）が載置されている。
ところで、上記装置においては、樹脂材料に紫外線を照射した際に、樹脂材料から泡状あるいはガス状の有機樹脂が発生してライトガイド（１）の出射端面（１ｂ）に付着する。この出射端面の汚染現象は、出射光量の低下、さらには光量むらに因る出射光の不均一光を招来する。しかも、この問題は、照射量が多いほど、また樹脂材料が多いほど、より深刻になる。
In recent years, the use of ultraviolet curable organic resin materials (hereinafter abbreviated as “resin materials”) as adhesives has become increasingly popular. As an example of an apparatus for curing the resin material, there is known an ultraviolet irradiation apparatus that irradiates ultraviolet rays with a light guide having a tip portion inserted into the container in a state where the resin material is placed in the container.
FIG. 3 shows a side view of this device. Here, (1) is a light guide composed of optical fiber bundles, (1a) is an optical fiber bundle constituting the light guide (1), (1b) is an exit end face of the light guide (1), (1c) ) Is an incident end face thereof, (5) is an ultraviolet light source, (6) is an adherend to which a resin material is applied, and (7) is a container. In this container (7), the emission end face (1b) of the light guide (1) is inserted, and a resin material (6) is placed in front of the emission end face (1b).
By the way, in the above apparatus, when the resin material is irradiated with ultraviolet rays, a foamy or gaseous organic resin is generated from the resin material and adheres to the emission end face (1b) of the light guide (1). This contamination of the exit end face results in a decrease in the amount of emitted light, and also non-uniform light of the emitted light due to unevenness in the amount of light. Moreover, this problem becomes more serious as the amount of irradiation increases and the amount of resin material increases.
したがって、本発明の課題は、ライトガイドの出射端面の汚染現象を克服することにより、優れた出射効率の下に均一光を照射するライトガイドを提供することにある。 Accordingly, an object of the present invention is to provide a light guide that irradiates uniform light with excellent emission efficiency by overcoming the contamination phenomenon of the emission end face of the light guide.
本発明者は、ライトガイドの出射端面に汚染防止能を付与することにより、上記の課題を一挙に解決するに至った。 The inventor of the present invention has solved the above problems all at once by imparting a contamination prevention capability to the light exit end face of the light guide.
本発明によれば、ライトガイドの出射端面の汚染現象が解消される。この結果、照射量や樹脂材料の量に影響されることなく出射効率が上がるとともに均一光の照射が実現できる。 According to the present invention, the contamination phenomenon of the exit end face of the light guide is eliminated. As a result, the emission efficiency is increased and uniform light irradiation can be realized without being affected by the irradiation amount or the amount of the resin material.
以下、本発明について、その出射端面が光触媒のコーティングにより汚染防止能を付与されたライトガイドを例にとり、図面を参照しながら説明する。
図１は、本発明に係るライトガイドの一部破断側面図である。
図２は、本発明に係るライトガイドの別の態様を示す側面図である。
図３は、従来のライトガイドを組み込んだ紫外線照射装置の側面図である。
図１において（１）、（１ａ）、（１ｂ）、（１ｃ）、（５）、（６）、および（７）の各符号は既に述べた図３の場合と同一である。他方、（２）は出射端面（１ｂ）にコーティグした汚染防止剤としての二酸化チタン（ＴｉＯ２）、（３）はライトガイド（１）の出射端側および入射端側のそれぞれに嵌合された環状の止め金である。
さらに、図２は、ライトガイドの他の態様を示し、その際、（４）はガラスロッドで、ライトガイドの出射端側に嵌合された環状の止め金（３）を介して装着されている。したがって、この場合は、ガラスロッドの先端面が出射端面（１ｂ）を形成し、該端面に二酸化チタンがコーティングされている。
Hereinafter, the present invention will be described with reference to the drawings, taking as an example a light guide whose emission end face is provided with anti-contamination ability by photocatalyst coating.
FIG. 1 is a partially broken side view of a light guide according to the present invention.
FIG. 2 is a side view showing another aspect of the light guide according to the present invention.
FIG. 3 is a side view of an ultraviolet irradiation apparatus incorporating a conventional light guide.
In FIG. 1, the symbols (1), (1a), (1b), (1c), (5), (6), and (7) are the same as those in FIG. On the other hand, (2) is titanium dioxide (TiO2) as a contamination inhibitor coated on the exit end face (1b), and (3) is an annular shape fitted to the exit end side and the entrance end side of the light guide (1). It is a clasp.
Further, FIG. 2 shows another embodiment of the light guide, in which (4) is a glass rod which is mounted via an annular clasp (3) fitted to the light guide emission end side. Yes. Therefore, in this case, the tip end face of the glass rod forms the emission end face (1b), and the end face is coated with titanium dioxide.
本発明において、ライトガイド（１）の出射端面（１ｂ）に汚染防止能を付与するには、上述の二酸化チタンにより代表される光触媒のコーティングの他に、該端面に抗菌塗料などの一般汚染防止剤をコーティングするか、あるいは該端面に鏡面加工を施してもよい。これらの中でも、加工性の面から光触媒が最も好ましい。
光触媒はライトガイド（１）の出射端面（１ｂ）に到達した光によって浄化作用を発揮する。つまり、樹脂材料（６）に紫外線が照射された際に、樹脂材料（６）から発生する有機ガスないし気泡を吸収して、水や二酸化炭素等に分解するので、出射端面（１ｂ）は汚れの付着のない、所謂セルフクリーニング能を呈する状態となる。この結果、出射端面（１ｂ）の汚染現象が回避されるので、出射光量の低下、さらには出射光の不均一光化の問題が解消される。
ここで、汚染防止剤（２）としての光触媒、特に二酸化チタンのコーティングの厚さは、汚染防止効果や光損失を勘案して０．０５μｍ〜１０００μｍの範囲から適宜選定するのが好ましい。その際の二酸化チタンの粒径は５ｎｍ〜５０ｎｍの範囲にあればよい。コーティング膜を形成するには、例えばライトガイドの出射端面（１ｂ）に二酸化チタンの微粒子の懸濁液を塗布し、乾燥後、加熱、焼成すればよい。
本発明のライトガイドを構成する光ファイバ素線束（１ａ）はガラスファイバあるいはプラスチックファイバ（ＰＯＦ）のいずれであってもよい。このときの素線外径としては、出射光の均一化の精度、素線自体の強度および加工性の面から２０μｍ〜７０μｍ、好ましくは３０μｍ〜５０μｍの範囲にあればよい。
また、その長さについて格別の制約はないが、一般には５ｍｍ〜３０００ｍｍ程度であればよい。光ファイバ素線束を形成するにあたっては、前述の素線を１２６０本〜４５３６０本の範囲で集束するのがよい。集束手段としては、熱融着あるいは接着材による接着がある。その際、ライトガイドの両端部の保護を兼ねてこれら端部に環状の止め金（３）を装着するのが好ましい。止め金（３）の材質は、黄銅、銅、アルミ二ウム、ステンレス等の金属あるいは樹脂のいずれでもよい。
また、このライトガイド（１）は、その出射端部がテーパ加工された、いわゆるテーパ付ライトガイドであってもよい。
さらに、上記の光ファイバ素線束（１ａ）からなるライトガイド（１）の出射端側に、ガラスロッド（４）を装着した場合、出射光はガラスロッド（４）固有の拡散効果により、より均一光化される。ガラスロッド（４）の長さは、上記の拡散効果と挿入ロスを考慮して５ｍｍ〜３０ｍｍの範囲に設定するのが好ましい。同時に、ガラスロッド（４）の外径をライトガイド（１）の外径より１０％〜５０％大きくしておくと、いっそう出射効率が向上する。
このようなライトガイド（１）については、その外部への紫外線漏れ現象を可及的に低減させることも意味がある。そのためには、ライトガイド（１）全体をアルミニウムやステンレス等の金属管に収納・固定するのも好ましいことである。
以上、本発明を例示的に説明したが、本発明の趣旨から逸脱しない限り、それらを変形した各種の態様が採用されることは言うまでもないことである。
In the present invention, in order to impart the anti-contamination ability to the emission end face (1b) of the light guide (1), in addition to the photocatalyst coating typified by the above-mentioned titanium dioxide, general anti-contamination such as antibacterial paint is applied to the end face. An agent may be coated, or the end surface may be mirror-finished. Among these, a photocatalyst is most preferable from the viewpoint of processability.
The photocatalyst exhibits a purification action by the light reaching the emission end face (1b) of the light guide (1). That is, when the resin material (6) is irradiated with ultraviolet rays, the organic gas or bubbles generated from the resin material (6) are absorbed and decomposed into water, carbon dioxide, etc., so that the emission end face (1b) is soiled. It will be in the state which exhibits what is called self-cleaning capability without adhesion. As a result, since the contamination phenomenon of the exit end face (1b) is avoided, the problem of a decrease in the amount of emitted light and further nonuniform light emission of the emitted light are solved.
Here, the thickness of the photocatalyst as the antifouling agent (2), particularly the coating of titanium dioxide, is preferably selected from the range of 0.05 μm to 1000 μm in consideration of the antifouling effect and light loss. The particle size of titanium dioxide at that time may be in the range of 5 nm to 50 nm. In order to form the coating film, for example, a suspension of titanium dioxide fine particles may be applied to the emission end face (1b) of the light guide, dried, heated and fired.
The optical fiber bundle (1a) constituting the light guide of the present invention may be either a glass fiber or a plastic fiber (POF). The outer diameter of the wire at this time may be in the range of 20 μm to 70 μm, preferably 30 μm to 50 μm, in view of the uniformity of the emitted light, the strength of the strand itself, and the workability.
Moreover, although there is no special restriction | limiting about the length, Generally it should just be about 5 mm-3000 mm. In forming the optical fiber bundle, the above-mentioned strands are preferably converged in the range of 1260 to 45360. As the focusing means, there is heat fusion or adhesion by an adhesive. At this time, it is preferable to attach an annular clasp (3) to these ends in order to protect both ends of the light guide. The material of the clasp (3) may be any metal such as brass, copper, aluminum, stainless steel, or resin.
In addition, the light guide (1) may be a so-called tapered light guide whose emission end is tapered.
Further, when the glass rod (4) is mounted on the light emitting end side of the light guide (1) composed of the above optical fiber bundle (1a), the emitted light is more uniform due to the diffusion effect inherent to the glass rod (4). It is lighted. The length of the glass rod (4) is preferably set in a range of 5 mm to 30 mm in consideration of the above diffusion effect and insertion loss. At the same time, when the outer diameter of the glass rod (4) is made 10% to 50% larger than the outer diameter of the light guide (1), the emission efficiency is further improved.
For such a light guide (1), it is also meaningful to reduce the ultraviolet leakage phenomenon to the outside as much as possible. For this purpose, it is also preferable to store and fix the entire light guide (1) in a metal tube such as aluminum or stainless steel.
As mentioned above, although this invention was demonstrated illustratively, it cannot be overemphasized that the various aspects which deform | transformed them are employ | adopted unless it deviates from the meaning of this invention.
素線径が０．２ｍｍの石英ガラスファイバ素線（１ａ）の５１０本を有機接着材（（株）エス・エス・アイ社製、エポキシ系接着剤「アレムコボンド５２６Ｎ」）で結束して、外径５ｍｍ、長さ２０００ｍｍで、両端面が共に、該素線軸と直交する平坦面で構成される円筒状のライトガイド（１）を作成した。その際、該両端面には内径５．３ｍｍ、幅５ｍｍ、黄銅製の環状止め金（３）を嵌合した。
他方、汚染防止剤（２）として粒径が６ｎｍの二酸化チタンの水性分散体（濃度５％）を準備した。そして、水性分散体を吹き付け機によりライトガイド（１）の出射端面（１ｂ）に厚さ０．０９μｍにコーティングした後、乾燥、焼成して本発明の汚染防止能を有するライトガイド（１）を完成した。
次に、上記のライトガイド（１）を、図３に示す紫外線照射装置に組み入れた。その際、ライトガイド（１）の先端部５０ｍｍを５０ｃｍ×４０ｃｍ×３０ｃｍ、厚さ２ｍｍのステンレスからなる容器（７）に挿入した。また、容器（７）内には樹脂材料を塗布した照射対象物（６）を作業台に載置した。該樹脂材料としては、エポキシ系紫外線硬化性樹脂材料（スリーボンド製）の５０ｇを使用した。
さらに、ライトガイド（１）の入射端面（１ｃ）に紫外線光源（５）から波長３６５ｎｍ、ワット数２５０ｗの紫外線を入射させ、硬化累積時間として１０００時間、照射した。その間、ライトガイド（１）の出射端面（１ｂ）からの照射状態について観察したが、照射効率の低下さらには不均一光化もみられず、樹脂材料の照射・硬化用として有用であることも確認された。また、ライトガイド（１）の出射端面（１ｂ）を容器（７）から取り外して、該端面の汚染現象について検査した。この結果、該端面には何ら樹脂材料のカスや塗膜が付着していないことも確認された。
Bundling 510 silica glass fiber strands (1a) having a strand diameter of 0.2 mm with an organic adhesive (manufactured by SSI Corporation, epoxy adhesive “Aremco Bond 526N”) A cylindrical light guide (1) having a diameter of 5 mm and a length of 2000 mm, and both end surfaces of which are flat surfaces perpendicular to the strand axis was prepared. At that time, an annular stopper (3) made of brass having an inner diameter of 5.3 mm and a width of 5 mm was fitted to the both end faces.
On the other hand, an aqueous dispersion (concentration 5%) of titanium dioxide having a particle size of 6 nm was prepared as a contamination inhibitor (2). Then, after the aqueous dispersion is coated on the exit end face (1b) of the light guide (1) to a thickness of 0.09 μm by a spraying machine, the light guide (1) having the antifouling ability of the present invention is dried and fired. completed.
Next, the light guide (1) was incorporated into the ultraviolet irradiation device shown in FIG. At that time, the tip 50 mm of the light guide (1) was inserted into a container (7) made of stainless steel of 50 cm × 40 cm × 30 cm and a thickness of 2 mm. Moreover, the irradiation object (6) which apply | coated the resin material was mounted in the work table in the container (7). As the resin material, 50 g of an epoxy ultraviolet curable resin material (manufactured by Three Bond) was used.
Further, ultraviolet light having a wavelength of 365 nm and a wattage of 250 w was incident on the incident end face (1c) of the light guide (1) from the ultraviolet light source (5), and irradiated for 1000 hours as a cumulative curing time. During that time, the irradiation state from the exit end face (1b) of the light guide (1) was observed, but it was confirmed that it was useful for irradiation / curing of resin materials without any decrease in irradiation efficiency and non-uniform light emission. It was done. Further, the emission end face (1b) of the light guide (1) was removed from the container (7), and the contamination phenomenon of the end face was inspected. As a result, it was also confirmed that no debris or coating film of the resin material adhered to the end face.
本発明のライトガイドにおいては、その出射端面の汚染現象が解消されるので、照射効率の低下さらには不均一光化が防止できる。したがって、このようなライトガイドは、光硬化性有機樹脂材料の照明・硬化用として有用のみならず、さらに他の用途、例えば、歯科用ライトガイドや赤外線治療用ライトガイド等医療分野にも利用できる。 In the light guide of the present invention, since the contamination phenomenon of the emission end face is eliminated, it is possible to prevent a decrease in irradiation efficiency and a non-uniform light. Therefore, such a light guide is not only useful for illumination / curing of a photocurable organic resin material, but can also be used in other fields such as a medical field such as a dental light guide and an infrared treatment light guide. .
１
ライトガイド
１ａ 光ファイバ素線
１ｂ
ライトガイドの出射端面
１ｃ ライトガイドの入射端面
２ 汚染防止剤
３ 止め金
４ ガラスロッド
５ 紫外線光源
６ 紫外線硬化性有機樹脂材料が塗布された被接着体
７ 容器
1
Light guide 1a Optical fiber 1b
Light guide exit end face 1c Light guide entrance end face 2 Antifouling agent 3 Stopper 4 Glass rod 5 UV light source 6 Adhered body 7 coated with UV curable organic resin material Container
Claims (6)
The light guide according to any one of claims 1 to 5, which is useful for irradiating ultraviolet rays from its emission end to cure the photocurable organic resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003342166A JP2005107308A (en) | 2003-09-30 | 2003-09-30 | Light guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003342166A JP2005107308A (en) | 2003-09-30 | 2003-09-30 | Light guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2005107308A true JP2005107308A (en) | 2005-04-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003342166A Pending JP2005107308A (en) | 2003-09-30 | 2003-09-30 | Light guide |
Country Status (1)
| Country | Link |
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| JP (1) | JP2005107308A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010058653A1 (en) * | 2008-11-19 | 2010-05-27 | 浜松ホトニクス株式会社 | Fiber optic plate and method for producing the same |
| JP2018516391A (en) * | 2015-06-03 | 2018-06-21 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Medical optical connector system |
-
2003
- 2003-09-30 JP JP2003342166A patent/JP2005107308A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010058653A1 (en) * | 2008-11-19 | 2010-05-27 | 浜松ホトニクス株式会社 | Fiber optic plate and method for producing the same |
| JP2010122436A (en) * | 2008-11-19 | 2010-06-03 | Hamamatsu Photonics Kk | Fiber optic plate and method of manufacturing the same |
| EP2354821A1 (en) * | 2008-11-19 | 2011-08-10 | Hamamatsu Photonics K.K. | Fiber optic plate and method for producing the same |
| EP2354821A4 (en) * | 2008-11-19 | 2012-05-09 | Hamamatsu Photonics Kk | Fiber optic plate and method for producing the same |
| US10209441B2 (en) | 2008-11-19 | 2019-02-19 | Hamamatsu Photonics K.K. | Fiber optic plate and method for producing the same |
| US10802211B2 (en) | 2008-11-19 | 2020-10-13 | Hamamatsu Photonics, K.K. | Fiber optic plate and method for producing the same |
| JP2018516391A (en) * | 2015-06-03 | 2018-06-21 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Medical optical connector system |
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