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    Nano-structured Coating to Improve UV-output

  • Unique ID
    • :
  • TO59602
  • Technology Status
    • :
  • Available
  • Technology Readiness Level
    • :
  • TRL9
  • Published on
    • :
  • 24th Jul 2017
  • Updated on
    • :
  • 6th Mar 2018

  • Technology Overview

    This groundbreaking UV nanostructured coating improves UV output of existing UV lamps, sleeves and UV transparent windows by up to 15% at 254nm. It has been extensively evaluated at 254nm using standard mercury low pressure lamps (LP Hg lamps). This proprietary layer is made with a simple wet chemical coating process followed by a short heat treatment. It has excellent adhesion and withstands repeated chemical cleaning. Patent applications are filed.

    The coating technology has been developed for cost efficient, large scale manufacturing and is easily added to existing production lines for UVC light sources. Performance has been verified on soft glass (soda lime), borosilicate and quartz/fused silica. Typical results are shown below, obtained by inserting a LP Hg lamp into the glass tube, with and without the UV coating. To simulate a UVC lamp with a surrounding sleeve, measurements on the improvement using two concentric tubes has been performed as well.

    Technology Features & Specifications

    This groundbreaking UV nanostructured optical coating technology has several competitive advantages. The key technology advantages and features are:

    • Improves UV transmission by up to 15% at 254nm
    • Verified for different types of glass
    • Tough, stable and chemically resistant
    • Cost efficient wet coating process
    • Performance verified by 3rd parties
    • Improvement maintained during fouling
    • The performance of the coating has been validated on several common materials used for UVC lamps:
      • Soft glass / Soda lime: typical improvement 13%
      • Borosilicate: typical improvement 13%
      • Quartz: typical improvement 6%
      • 2x Quartz (lamp+sleeve): typical improvement 10%
    • Withstands repeated chemical cleaning

    Potential Applications

    The UV nanostructured optical coating can easily be added to existing production lines for UV light sources and be applied to any existing UV lamps, sleeves, UV transparent windows etc. to increase UV output by up to 15% at 254nm. Examples of applications where this UV nanostructured optical coating can be used are: Water disinfection systems Air-con inlet systems Food processing Curing systems

    Customer Benefits

    Customer benefits:

    • Energy savings
    • Lower system cost
    • Lower operational costs
    • Less maintenance
    • Increased germicidal capacity

    Keywords : ,

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