SCHOTT Aspherical Lens Caps

SCHOTT’s aspherical lens caps are used in a wide range of application fields including:

• TOSA lens cap for FTTx applications in triplexers and bi-directionals
• Long range TOSA modules requiring higher efficiency optics
• Specialty applications in imaging

Customers can be confident about the reliability of SCHOTT’s aspherical lens caps for two key reasons.

• Established glass-to-metal sealing (GTMS) technology.
  • With more than 50 years of experience in GTMS technology, SCHOTT is recognized as an expert in this field.
  • Aspherical lens caps are manufactured in a similar way as ball lens caps. Hence, the seal between the asphere and the metal cap is proven to be very stable.
• Glass expert for more than 125 years.
  • The low Tg glass with a high refractive index used for molding is developed and melted in-house, based on our extensive glass expertise.
  • Design capabilities are available to help customers modify and optimize their optical designs to achieve higher efficiencies.

In addition, with vertically integrated manufacturing processes – from materials to components – SCHOTT can offer customers the dual benefits of one-stop shopping and high flexibility in our large-scale production processes.

Leveraging on our in-house glass melting and development capabilities, SCHOTT is able to mold aspheres of extremely small diameters (min. diameter 1.6mm). This glass asphere and a metal frame are then soldered together in a cleanroom environment to ensure that the narrow tolerances of the optical properties are not compromised. It is extremely important to ensure that the glass component is not affected and not altered during the soldering process.

A variety of different geometric shapes can be realized with the soldering procedure. The use of various processes, such as sintering and dispensing, enables the production of a broad range of different shapes. The metal frames can also be manufactured using a lathe, which ensures accurate manufacturing of metal parts, and enables the application of even narrower tolerance ranges.

Please refer to our glass-to-metal seal technology page for more information about this hermetic sealing process.

All products are packaged individually under cleanroom conditions.

All of our production facilities are ISO 9001 certified. All products are ROHS compatible. All caps are soldered in clean rooms.