Semiconductor Devices; Electric Solid State Devices Not Otherwise Provided For
F21K
Non-electric Light Sources Using Luminescence; Light Sources Using Electrochemiluminescence; Light Sources Using Charges Of Combustible Material; Light Sources Using Semiconductor Devices As Light-generating Elements; Light Sources Not Otherwise Provided For
F21Y
Indexing Scheme Associated With Subclasses F21k, F21l, F21s And F21v, Relating To The Form Or The Kind Of The Light Sources Or Of The Colour Of The Light Emitted
F21V
Functional Features Or Details Of Lighting Devices Or Systems Thereof; Structural Combinations Of Lighting Devices With Other Articles, Not Otherwise Provided For
H01S
Devices Using The Process Of Light Amplification By Stimulated Emission Of Radiation [laser] To Amplify Or Generate Light; Devices Using Stimulated Emission Of Electromagnetic Radiation In Wave Ranges Other Than Optical
