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High Refractive Index Optical Adhesives

Product information "High Refractive Index Optical Adhesives"

Refractive Index 1.603-1.720; Viscosity 9-7,000 mPas; Transmittance 72%-96%; Hardness 67-83 Shore D; Shear Bond Strength 35->280 kgf/cm²; UV Curing Conditions 10, 100 mW/cm², 5, 10 min; Tg +63-+113 °C

With a typical refractive index of 1.5 in conventional optical adhesives, the problem of a high reflection loss arose in cases of adhesion with high refractive index glass and crystal materials. Utilizing its refractive index control technology and optical loss reduction technology, NTT-AT has developed optical adhesives with a high refractive index adjustable to 1.6 or more. By adding high refractive index fillers, NTT-AT is even able to manufacture resins with a refractive index of 1.9.

These resins are aimed at usage in the fields of optical recording, display technology, optical energy uses, etc. In addition to this series, NTT-AT also provides high refractive index resins for nanoimprint applications.

NTT’s high refractive index resins are excellent in transparency in visible light domains, with haze values of 1 or less, so it is expected that they are used as a coating agent for displays and similar products. Within this series, you find acrylate-based adhesives (#18165 and #6205) as well as epoxy adhesives (E3754 and E7200). To match the particular working environment of our customers, NTT-AT provides both ultraviolet (UV) and heat curing types.

NTT-AT provides refractive index customized resins to meet each customer's needs. It is possible to respond to several kinds of requests such as with/without solvent or adjusting the viscosity. Please contact the AMS Technologies optical adhesives experts to discuss your customized refractive index matched optical adhesive solution.

Key Features:

  • Refractive Index of 1.6 or More Can Be Chosen
  • High Accuracy of Refracting Index Control: ±0.005
  • Choice of Either Ultraviolet (UV) Curing or Heat Curing Method
  • High Transparency in Visible Light Domains: Optical Transmittance 90% or More at 1 mm Thickness
  • Refractive Index: 1.603 to 1.720
  • Viscosity: 9 to 7,000 mPas
  • Transmittance: 72% to 96%
  • Hardness: 67 to 83 Shore D
  • Shear Bond Strength: 35 to >280 kgf/cm²
  • UV Curing Conditions: 10, 100 mW/cm², 5, 10 min
  • Glass Transition Temperature Tg: +63 to +113 °C

Applications: High Refractive Index Coating Agents; Bonding High Refractive Index Crystal Materials; Bonding High Refractive Index Glass (for Camera Lenses, Eyeglass Lenses, etc.); Higher Efficiency Optical Input and Output Power; Efficient Conversion of Light Energy; Optical Recording; Display Technology

Manufacturer "NTT-AT"
The Japanese company NTT Advanced Technology Corporation (NTT-AT) was founded in 1976 as a subsidiary of the NTT Group, the largest telecommunication provider in Japan. Its business now covers almost the entire range of the information and communication technologies. NTT-AT is ISO 9001 certified. NTT-AT’s products available from AMS Technologies include cleaning tools that reliably remove even the smallest contamination from end faces of optical fiber connectors, adapters or ferrules, but also fiber optics polishing films and equipment, various types of optical adhesives, ceramic micro heaters, swept light sources, varifocal lenses, KTN deflector modules or UVC LED modules and sterilization equipment.
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Fiber Optic Collimators
Fiber Type SM, PM; 450-2000 nm; Bandwidth ±15-±40 nm; IL ≤0.3-≤2.5 dB; RL ≥50 dB; Fiber Length 5, 20 mm, Other; Dimension Ø1.3/2.78/2.85x8, Ø3.2x10, Ø2.4x12 mm Fiber optic collimators are components designed to collimate/focus light exiting a fiber to a desired optical beam. Gooch & Housego (G&H) fiber optic collimators offer low optical loss and high reliability across a wide range of wavelengths. G&H low -and high-power fiber optic collimators are available in single fiber and dual fibers, ideal for use in fiber sensors and fiber lasers. Operating center wavelengths start at 450 nm and go on to 520, 630, 780, 850, 980, 1064, 1310, 1550 and 2000 nm. Power handling options from 0.1 to 10 W or customer requested. Four different versions of G&H fiber collimators are available: Low-power single mode (SM) collimators (SCOL-xx-xx-xx-xx-x1-xx-x series) High-power single mode (SM) collimators (HSCO-xx-xx-xx-xx-31-xx-0 series) Low-power polarization maintaining (PM) collimators (PCOL-xx-xxxx-xx-xx-xxx series) High-power polarization maintaining (PM) collimators (HPCO-xx-xx-xx-xx-31-xx0 series) Key Features: Low Insertion Loss (IL, at WD): ≤0.3 to ≤2.5 dB High Reliability Center Wavelength: 450 to 2000 nm Operating Bandwidth ±15 to ±40 nm Return Loss (RL): ≥50 dB Polarization Dependent Loss (PDL, SM Versions): ≤0.15 dB Extinction Ratio (PM Versions): ≥18 to ≥23 dB Working Distance: 5, 20 mm or Customer Request Optical Power Handling: ≤0.1 to 10 W Fiber Type Single Mode (SM) Versions: 460-HP, 630HP, HI-780C, HI1060, SMF-28, SM-1950 Fiber Type Polarization Maintaining (PM) Versions: PM460-HP, PM630-HP, PM780C-A, SM98-PS-U25, SM13-PS-U25, SM15-PS-U25 Lead Length: 1, 1.5 m, etc. Glass, Gilded or Metal Tube Dimensions: Ø1.3/2.78/2.85 x 8, Ø3.2 x 10, Ø2.4 x 12 mm Applications: Fiber Sensors; Fiber Lasers
Product number: SW11349
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Low Refractive Index Optical Adhesives
Refractive Index 1.375-1.438; Viscosity 7-25 mPas; Transmittance 76%-94%; Hardness 20-78 Shore D; Shear Bond Strength 27->61 kgf/cm²; UV Curing Conditions 10 mW/cm², 1-10 min; Tg +18-+103 °C Using its refractive index control technology and optical loss reduction technology, NTT-AT has developed optical adhesives with a low refractive index of 1.4 or less. These resins are aimed at usage in the fields of optical recording, display technology, optical energy uses, etc. NTT’s low refractive index resins are also excellent in transparency in visible light domains. Within this series you find acrylate-based adhesives (#18204 and #18114) as well as epoxy adhesives (E3810). To match the particular working environment of our customers, NTT-AT provides both ultraviolet (UV) and heat curing types. NTT-AT provides refractive index customized resins to meet each customer's needs. Please contact the AMS Technologies optical adhesives experts to discuss your customized refractive index matched optical adhesive solution. Key Features: Refractive Index of 1.4 or Less Can Be Chosen High Accuracy of Refracting Index Control: ±0.005 Choice of Either Ultraviolet (UV) Curing or Heat Curing Method High Transparency in Visible Light Domains: Optical Transmittance 90% or More at 1 mm Thickness Refractive Index: 1.375 to 1.438 Viscosity: 7 to 25 mPas Transmittance: 76% to 94% Hardness: 20 to 78 Shore D Shear Bond Strength: 27 to >61 kgf/cm² UV Curing Conditions: 10 mW/cm², 1 to 10 min Glass Transition Temperature Tg: +18 to +103 °C Applications: Low Refractive Index Coating Agents; Bonding Low Refractive Index Crystal Materials; Bonding Low Refractive Index Glass (for Camera Lenses, Eyeglass Lenses, etc.); Higher Efficiency Optical Input and Output Power; Efficient Conversion of Light Energy; Optical Recording; Display Technology
Product number: SW11656
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