Skip to main content Skip to search Skip to main navigation

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 Advanced Technology Corporation has developed optical adhesives with a high refractive index adjustable to 1.6 or more. By adding high refractive index fillers, NTT Advanced Technology Corporation 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 Advanced Technology Corporation also provides high refractive index resins for nanoimprint applications.

NTT Advanced Technology Corporation’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 Advanced Technology Corporation provides both ultraviolet (UV) and heat curing types.

NTT Advanced Technology Corporation 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.
Related links of the manufacturer
Information on the manufacturer (information obligations under the GPSR Product Safety Regulation)
NTT Advanced Technology Corporation
Tokyo Opera City Tower, 3-20-2, Nishi-shinjuku, Shinjuku-ku
163-1436 Tokyo, Japan
Skip product gallery

Customers also viewed

NEOCLEAN Optical Connector Cleaners
NEOCLEAN Optical Connector Cleaners

Cleaning Tools for Connectors, Plugs & Adapters; Pen, Simple or Stick Types; Connector Types MU, LC, SC, SC2, FC, FAS, FA, ST, E2000, PC/APC, ODC, MPO, MPT, ATC, Ø1.25 mm, Ø2.5mm; No Alcohol or SolventsNTT Advanced Technology Corporation’s NEOCLEAN series of fiber optical connector cleaners are tools that combine compactness with the workability of one-push cleaning. NEOCLEAN tools remove dirt you can’t even see, without scratching the connector’s end face.Designed to work with dedicated microfiber tissue, the NEOCLEAN series of fiber optical connector cleaners allows all operators to consistently achieve high quality cleaning without alcohol or other solvents.With NEOCLEAN-E, NEOCLEAN-EZ and NEOCLEAN-M/M2, the NEOCLEAN line of pen type fiber optical connector cleaners provides a line-up of nine different high performance hybrid type cleaners that provide cleaning for a broad range of both optical connector plugs and adaptors in one unit.The NEOCLEAN-E simple one push action cleans the ferrule end face in device adapters. Its cleaning cartridge is replaceable, with each cartridge performing about 750 cleanings, greatly reducing cleaning costs. Using the attached cap you can also the clean ferrule end face in plugs. The NEOCLEAN-EZ line features an especially compact body, designed for cleaning in the narrow spaces of optical connector ports with a one push action. Simply remove the front tip cap to clean optical plugs. Fixing the attachment to the rear end allows you to also clean deeply recessed optical ports.NEOCLEAN-EZv is developed exclusively for easy cleaning of 2 mm broadcasting and video optical connectors, while NEOCLEAN-EZ3 can clean 2.5 mm optical connector ports and plugs as well as 2 mm video connectors. NEOCLEAN-EZ1Plus can clean 1.25 mm optical connector ports, ODC plugs and ODC sockets.The NEOCLEAN-M series of pen type cleaners allows you to instantly clean MPO/MTP connectors. NEOCLEAN-M for 12-core systems and NEOCLEAN-M2 for 16-core systems respond to the need for end face cleaning.NTT-AT’s NEOCLEAN-R2 line of simple type fiber optical connector cleaners uses cleaning tape that does not produce dust and provides special cleaning strength while resisting foreign particles to mix into the tape. A simplified tape advance mechanism resulted in cost reductions for both manufacturing and assembly. The main body is also made from anti-static material.Also made with antistatic materials, the NEOCLEAN-S line of stick type fiber optical connector cleaners controls the generation of static electricity during the cleaning process. And just as with the reel type, the cloth in the cleaning part is made from special cleaning fiber. Featuring 1.25 mm or 2.5 mm ends, NEOCLEAN-S is a very useful tool for cleaning connector end faces inserted into adaptors and housings.Key Features:Compact Design- Easy to Use and EfficientNo Alcohol or SolventsPen, Simple and Stick Types AvailableCost Effective Replaceable Cartridge (NEOCLEAN-E)Excellent Anti-static PropertiesApplications: Cleaning of Single Core and Multi Core Fiber Optical Connectors, Plugs & Adapters; Cleaning of Fiber Optical Connectors for Video Equipment

Product number: SW10686
Manufacturer: NTT-AT

REQUEST PRICING AND AVAILABILITY

- Get your individual quote.
- Technical compatibility review included.
- Volume discounts available.

No obligation. Direct access to our engineering team.
High-Precision Optical Adhesives
High-Precision Optical Adhesives

Viscosity 36,000, 180,000 mPas; Bending Adhesion Strength >114, >128 kgf/cm²; UV Curing Conditions 100 mW/cm², 2 min; Curing Shrinkage Rate 0.5%, 0.9%; Tg +195, +233 °C; Thermal Expansion Coefficient 18, 20 ppm/°CNTT Advanced Technology Corporation’s high-precision optical adhesives allow easy fixation of optical components with sub-micron accuracy. Based on epoxy, these high-precision optical adhesives are available with low viscosity of 36,000 mPas (AT3916P) or with high viscosity of 180,000 mPas (AT3862P). Both adhesives show minimal position changes due to curing time and temperature.Shrinkage rate during curing is very low for this series of high-precision optical adhesives, and the thermal expansion coefficient is small. Using ultraviolet (UV) ray curing makes alignment easy.NTT Advanced Technology Corporation’s series of high-precision adhesives show excellent durability: Even after a high-temperature process at +260 °C, the adhesives’ bonding strength does not change. And no peeling occurred after 200 cycles in a simplified heat cycle test.In order to achieve high reliability, a product must clear the tests conducted by the users themselves. If you have had even just a bit of dissatisfaction in precision or durability results in the past, please put NTT Advanced Technology Corporation’s high-precision adhesives to the test.In case you need any consulting regarding issues related to adhesion, please contact the AMS Technologies optical adhesives experts to discuss the detailed challenges of your application.Key Features:Low Shrinkage Rate During Curing: 0.5% (AT3862P), 0.9% (AT3916P)Low Thermal Expansion Coefficient: <20 ppm/°CUltraviolet (UV) Curing for Easy AlignmentExcellent Durability: No Change in Bonding Strength After +260 °C High-temperature Process, No Peeling After 200 Heat Test CyclesViscosity: 36,000, 180,000 mPasBending Adhesion Strength: >114, >128 kgf/cm²UV Curing Conditions: 100 mW/cm², 2 minGlass Transition Temperature Tg: +195, +233 °CApplications: High-precision Fixation of Optical Components With Sub-micron Accuracy

Product number: SW11652
Manufacturer: NTT-AT

REQUEST PRICING AND AVAILABILITY

- Get your individual quote.
- Technical compatibility review included.
- Volume discounts available.

No obligation. Direct access to our engineering team.