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About Kuraray WLS Fibers

About Kuraray WLS Fibers. Yuki Shiomi Kuraray Co., Ltd. Agenda. Kuraray Methacrylate Company Kuraray Scintillation Material Past experiments Structure and Material of the Fiber Individual Specifications spool/cut/diameter/bumps/eccentricity/

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About Kuraray WLS Fibers

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  1. About Kuraray WLS Fibers Yuki Shiomi Kuraray Co., Ltd. Kuraray Confidential

  2. Agenda • Kuraray Methacrylate Company • Kuraray Scintillation Material • Past experiments • Structure and Material of the Fiber • Individual Specifications spool/cut/diameter/bumps/eccentricity/ attenuation length/light output/bending loss • Production Capacity • Question and Answers Kuraray Confidential

  3. Methacrylate Company Core Products • Methacrylic resin for molding • light -guide plates for liquid crystal displays (LCDs) • automobile lamp covers, and lighting fixtures • Methacrylic synthetic marble • Methacrylic resin sheets • signboards, displays, large tanks for aquarium facilities • front panels for televisions and computer monitors • Opto-screens • screens for rear-projection televisions (Fresnel lens and lenticular lens) • Stampers • CD-R, DVD±Ｒstampers • Stampers for light -guide of LCDs • Scintillation Materials Kuraray Confidential

  4. Kuraray Scintillation Materials SCSN SCSF WLS CLEAR Fiber Kuraray Confidential

  5. 1mm D Past Experiments 1m=1g Total 13,000kg Kuraray Confidential

  6. Structure and Material of the Fiber Outer Cladding Cladding Cladding Inner Cladding Core Core T T Core To T Ti D SQ D T=3% of D NA=0.55 Trapping Efficiency=4.2% T=3%(To)+3%(Ti) of =6% of D NA=0.72 Trapping Efficiency=5.4% T=3% of SQ NA=0.55 Trapping Efficiency=4.2% Round Fiber Square Fiber [Single cladding] [Multi cladding] [Single cladding] Kuraray Confidential

  7. Transmission Mechanism of Multi Cladding Fiber [Y-11 Multi cladding] Outer Cladding Single/Inner Cladding Blue Light Core ２６．７゜ ４５．７゜ Green Light ◆Multi cladding fiber has 50% higher light yield than single cladding fiber Kuraray Confidential

  8. Individual Specifications 900mm Spool fiber D >=0.6 large spool fiber D <=0.5 small spool about 1600g of fiber/spool 300mm 10,000km of 1.0mm D fibers - 6,250 spools of 1600m +- several 100m Cut Fiber D >=0.8 Cut length0.5m to 5m Kuraray Confidential

  9. Individual Specifications Diameter Laser Diameter Apparutus (final measurent) Laser Diameter Apparutus (feed back control) Measurement frequency 50,000 pts Average +- 1% of D Tolerance 3б/D=2.5% 1.0mm D fiber Average +-0.01 Standard Deviation RMS=<0.007mm Kuraray Confidential

  10. Individual Specifications Bumps over +-2% of average D The number, position, diameter, length will be specified. Making a red mark on all bumps is possible. Number of 2% bumps =< 50 per km Number of 4% bumps =< 15 per km Kuraray Confidential

  11. Individual Specifications Eccentricity Measure 2 points by micrometer (Dmax-Dmin)/(Dmax-Dmin)<1.5% [(Dmax-Dmin)/<3%] Kuraray Confidential

  12. Attenuation Length and Light Output (Measurement Method) 2 sample fibers of 3m for every spool Test Fiber (measures every 10 cm) 3m sample fiber Kuraray Confidential

  13. Individual Specifications Attenuation Length Y-11(200) A.L. of all fibers > 3.5 The A.L. of every sample throughout the whole order RMS/Ave =< 10% example:Y-11 1.0D., non-S type with different concentrations Kuraray Confidential

  14. Individual Specifications Light Output The L.O. at the 140cm of every sample throughout the whole order RMS/Ave=<7% The L.O. at the 285cm of every sample throughout the whole order RMS/Ave=<15% Kuraray Confidential

  15. MINOS Measurement Method (A. L. and Light Output) 10m long fiber test apparatus (measure 21 points) All the values of the 21 points of the samples measured >=85% Kuraray Confidential

  16. Bending Loss (Measurement Method) ② ① FC Connector Sample Fiber (3 m) ③ 100φ Black Box 100φdrum 1 turn 2 sample fibers of 3m for every spool ①Halogen Lump House(non monochromated light)：ANRITSUＧＡ－９２２Ａ ②Power Meter：ANRITSU ＭＬ９１０Ａ ③Si-PD detector：ANRITSU ＭＡ９８０２Ａ Kuraray Confidential

  17. Individual Specifications Bending Loss Bending Loss of all the samples=<5% The Minimum bending diameter we recommend on safety side and long term reliability *S type – stronger against cracking, but has 10% shorter A.L. Kuraray Confidential

  18. Production Capacity Kuraray’s capacity of producing 10,000km of 1mm D fiber Current capacity 74 months Equipment capacity 26 months The best we can do 16 months Kuraray Confidential

  19. Contact Address Yuki Shiomi (sales) Yuuki_Shiomi@kuraray.co.jp Osamu Shinji (technical) Osamu_Shinji@kuraray.co.jp Kuraray Confidential

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