Cosine correctors are used to collect light from a 180° angle. This eliminates optical interface problems associated with the light collection sampling geometry inherent to other sampling devices such as bare fibre optics, collimating lenses, or integrating spheres.
Avantes offers four different models of cosine correctors: The CC-UV/VIS and CC-VIS/NIR have a 3.9mm active area, and dimensions of 18mm (L) X 6.5mm (OD). The CC-UV/VIS is made of Teflon, which is especially suited for measurements in the 200-800 nm range, whereas the CC-VIS/NIR covers the full UV/VIS/NIR range of 200-2500 nm and is made of Radin Quartz.
The CC-UV/VIS/NIR-8MM works as the CC-VIS/NIR, but has an active area of 8.0mm and dimensions of 29mm (L) X 12mm (OD). The specialized CC-UV/VIS/NIR-5.0 has a 20mm active area is used for solar measurement applications requiring a 5° angular field of view, which has a 20mm active area and is much larger than the other cosine correctors measuring, 317mm (L) X 38mm (OD).
|Diameter of active area||3.9 mm||3.9 mm||8.0 mm||20.0 mm|
|Diffusing material||Teflonn(200-800 nm),nca 1 mm thick||Radin Quartz (200-2500 nm), ca 1.5 mm thick||Radin Quartz (200-2500 nm), ca 1.5 mm thick||Radin Quartz (200-2500 nm), ca 1.5 mm thick|
|Dimensions||6.5 mm diameter, 18 mm long||6.5 mm diameter, 18 mm long||12 mm diameter,n29 mm long||38 mm diameter,n317 mm long|
|Sampling geometry||Accepts light at/from 180°FOV||Accepts light at/from 180°FOV||Accepts light at/from 180°FOV||Accepts light at 5°FOV|
|Connector||SMA 905||SMA 905||SMA 905||SMA 905|
|Temperature||-30°C to +100°C||-30°C to +100°C||-30°C to +100°C||-30°C to +100°C|
|CC-UV/VIS||Cosine corrector for UV/VIS, incl. SMA adapter|
|CC-VIS/NIR||Cosine corrector for UV/VIS/NIR, incl. SMA adapter|
|CC-UV/VIS/NIR-8MM||Cosine corrector for UV/VIS/NIR, 8 mm area, incl. SMA adapter|
|CC-UV/VIS/NIR-5.0||Cosine corrector for UV/VIS/NIR, 5.0°FOV, incl. SMA adapter|