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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H01S 3/10

Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating

Introduced: September 1968

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 > Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating

CPC:

Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range (semiconductors lasers H01S5/00) > Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating

CPC subdivides this area 2x more granularly than IPC with 7 additional codes.

7 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • H01S 3/10053 CPC only CPC only
  • H01S 3/10061 CPC only CPC only
  • H01S 3/10069 CPC only CPC only
  • H01S 3/10076 CPC only CPC only
  • H01S 3/101 Lasers provided with means to change the location from which, or the direction in which, laser radiation is emitted since 1974 IPC+CPC Available in IPC and CPC