Cosine Correctors for Spectrometers & Optical Fibers

Cosine correctors are optical diffusers (opaline glass, PTFE or Spectralon) that couple to fibers and spectrometers to collect signal from 180° field of view. Cosine correctors are specified for setups requiring the redistribution of incident light, such as measuring spectral irradiance of a plane surface in air or other media.

Typical applications include relative and absolute spectral intensity measurements of LEDs, light sources and other radiant sources (including solar). Options are available for connecting to optical fibers or spectrometers.

Specifications	CC-3	CC-3- DA	CC-3-UV-S	CC-3-UV-T	CC-S-DIFFUSE	CC-T-DIFFUSE
Connects To	Optical fiber	Spectrometer	Optical fiber	Optical fiber	Replacement Spectralon disk for CC-3-UV-S and CC-3-DA correctors	Replacement PTFE disk for CC-3-UV-T corrector
Optical Diffuser	Opaline glass	Spectralon	Spectralon	PTFE	Spectralon	PTFE
Wavelength Range	350-750 nm	200-1100 nm	200-1700 nm	200-750 nm	200-1700 nm	200-750 nm
Diffusers (Diameter)	3900 µm	7140 µm	3900 µm	3900 µm	–	–
Dimensions (OD)	6.35 mm	12.7 mm	6.35 mm	6.35 mm	–	–
Field of View	180°	180°	180°	180°	–	–
Replacement Diffuser	Yes	Yes with restrictions*	Yes	Yes	Yes	Yes