4. Optical: systems and elements
  5. Having significant infrared or ultraviolet property
  6. Multilayer filter or multilayer reflector

Byong H. Ahn

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Broadband protector for photodetectors

Optical: systems and elements – Having significant infrared or ultraviolet property – Multilayer filter or multilayer reflector
Patent

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Far infrared tandem low energy optical power limiter device

Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Reexamination Certificate

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Laser line identifier

Radiant energy – Invisible radiant energy responsive electric signalling – Plural signalling means
Patent

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Optical power switch

Optical: systems and elements – Absorption filter – Fluid
Reexamination Certificate

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Profile ID: LFUS-PAI-P-863578

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