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PCE
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DIFF Subgroup
H01S 3/0915

by incoherent light

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range > Processes or apparatus for excitation, e.g. pumping > using optical pumping > by incoherent light

CPC:

Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range (semiconductors lasers H01S5/00) > Processes or apparatus for excitation, e.g. pumping > using optical pumping > by incoherent light

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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  • H01S 3/09155 CPC only CPC only
  • H01S 3/0933 of a semiconductor, e.g. light emitting diode since 1990 IPC+CPC Available in IPC and CPC
  • H01S 3/0937 produced by exploding or combustible material since 1990 IPC+CPC Available in IPC and CPC