Harsh Environment Solidur^® LEDs for Industrial Applications

In applications with high humidity, heat, pressure, or aggressive chemicals, the use of standard, non-hermetic LEDs is extremely limited and often only possible with an additional protective housing designed around the actual light source. The reason: LED chips and photo/laser-diodes are highly sensitive to moisture and other environmental aggressors such as high heat or chemicals, so they require special protection.

The solution: SCHOTT Solidur^® LEDs and opto-electronic modules are made to work in applications that LEDs could not reliably withstand in the past due to harsh-environment conditions.

SCHOTT manufactures hermetically sealed and fully customizable Solidur^® LED modules, offering superb illumination in an extraordinarily sturdy package. High-quality, vacuum-tight metal housings deliver complete protection for the internal LED chips – supporting long-term functionality for “fit-and-forget” application. Solidur^® LEDs expand the limits of lighting integration, pushing into harsh environment and safety-critical settings previously unsupported by ordinary LED technology.

SCHOTT Solidur^® LEDs. Extremely Tough. Extremely Reliable.

Solidur^® LEDs are fully customizable according to customer specifications, making them suitable for nearly any application requiring a reliable, hermetically sealed light source – especially in harsh environment settings.

Examples include:

Optical Sensors

• Optical gas sensors
• Fluid sensors
• Position sensors

UVC and UVB LEDs

• Water sterilization
• Air purification
• Medical settings (i.e. skin treatments)
• Measurement systems
• Surface sterilization (medical, home appliance, consumer handheld devices)

Industrial Automation

 

Wearable Electronics / Devices

Technology:

Its hermetic assembly is the secret of the high quality and reliability of our LEDs:
The gas-tight housings use SCHOTT’s specialty glass-to-metal sealing (GTMS) and ceramic-to-metal sealing (CerTMS^®) technologies. SCHOTT’s GTMS component line is the product of decades spent developing and perfecting the process of permanently fusing glass and metal together as a means to create hermetic housings for the protection of sensitive electronics. SCHOTT is a world-leading glass manufacturer with 135 years of experience in the field. 

SCHOTT functions as both a glass manufacturer and sealing house, offering the unique advantage of internal, vertically-integrated expertise and process control of every manufacturing step for its glass-to-metal sealed components.
 

Features/Specifications

• Withstands exposure to oils
• Can undergo steam sterilization (2 bar; 134 ºC)
• Temperature stability: > 260 ºC
• Gas-tightness:1 x 10–8 mbar x l/s
• Electric insulation: >10GΩ
• Chemical resistance: High
• Thermal shock stability: -65 ºC to 150 ºC for 15 cycles
• Refractive index of glass: 1.48 – 1.58
• Temperature conductivity: 400 W · m–1 · K–1 (Copper)
• Package dimensions: miniaturization down to 2 mm diameter possible