Optical bonding

Enhancing Optical Systems with Optical Bonding Solutions

Discover DELO's High-Performance Optical Adhesives

In most optical devices, multiple functional elements are combined to an optical system. Diffractive optical elements, lenses, polarizers, spacers or apertures need to form a functional stack with precise alignment and distances to achieve the highest possible performance. This is enabled by specifically developed optical-grade adhesives, which are essential to bond and fix optical components in the perfect position, either individually or directly on the wafer- or panel-level. Whenever the adhesive is employed in the optical path, tailored optical and mechanical properties become important to enable the best optical performance and  long-term reliability of the optical device. 


DELO high performance optical adhesives are designed to deliver outstanding reliability performance even in challenging conditions. Most products survive reflow cycles with peak temperatures of 260 °C and extended storage under high temperature, high humidity or UV-exposure without a significant loss in transmission. This enables their utilization even in demanding applications such as automotive lighting or laser systems, where a reliable bonding strength in combination with constant optical properties is key.
 

Requirements of optical bonding adhesives

When it comes to bonding in the optical path, the following performance characteristics are expected from an optical adhesive:

  • High transparency in the visible wavelength / wavelength region of interest
  • Low haze
  • Refractive index matching the optical design
  • Excellent adhesion between substrates
  • Fast dispensing and UV- and/or heat-curing
  • Outstanding reliability during humidity, temperature and UV-exposure

DELO offers a huge refractive index range

DELO products exhibit constant transmission and adhesion even in most challenging reliability tests

Application areas with DELO optical adhesives

  • AR (Augmented Reality) AR waveguide bonding and stacking
  • VR (Virtual reality) Pancake lens bonding
  • Optical Elements Lens (array) bonding, prism bonding, MLA bonding, AR waveguide bonding
  • Optical coupling PIC, Optical Transceiver
  • Wafer-Level Optics Bonding 

     

Are you ready to enhance your optical systems with DELO's precision bonding solutions, or do you have questions about applications like AR and VR lens bonding? 

Talk to our experts.

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More Information

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Optically Clear Adhesives

 

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