Panacol showcases a new optical grade adhesive on Photonics West

Panacol will showcase new optical grade resins and adhesives for embossing and optical bonding applications at the SPIE Photonics West exhibition held in San Francisco, California, USA from January 30 to February 1, 2024.

These new adhesives can be used for sensors in lightweight carpets, smart devices, and wearable devices in the automotive industry, or for generating structured light in projectors or time-of-flight sensing applications.

Panacol specially formulated adhesive is used for imprinting and replication of refractive lenses and diffractive optical elements. These adhesives are suitable for micro nano imprinting lithography, wafer level optical devices, and wafer bonding. The newly launched adhesives Vitralit UC 1632 and Vitralit UC 1658 have a viscosity range of 100 to 200 mPas, making them easy to apply through water pit dispensing, spin coating, or spraying.

They have excellent adhesion to commonly used glass wafers and upcoming new polymer substrates. Once coated and embossed, the adhesive will quickly cure under ultraviolet light, forming a precise and durable structure on the wafer. Both of these adhesives are specifically tailored to meet the high requirements of optical reliability, such as low yellowing, temperature stability, and shape retention.

For black shading and shading purposes, Panacol also offers black UV cured adhesive Vitralit BL UC 1103. This black epoxy resin adhesive can penetrate ultraviolet rays when not cured. After curing, it is opaque and light blocking.

In terms of optical bonding and alignment, Panacol has developed UV cured adhesives Vitralit 7311, Vitralit VBB-60, and Vitralit 1860, as well as heat cured adhesives Structuralit 5531 and Structuralit 5511. These adhesives have high adhesion to glass and widely used plastic substrates. Adaptive Vitralit UD 8057 is specially formulated for dual curing using UV/visible light and atmospheric moisture. This allows the adhesive to cure with water in shaded areas where UV/visible light cannot reach.

These adhesives used for optical bonding can be easily cured through H ö nle's high-strength LED curing system, which perfectly matches the wavelength of the Panacol photoinitiator. After curing, Panacol's optical grade adhesive has flexibility and tension balance, which can reduce stress on different substrates.

Source: Laser Net