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Spectrographs

Acton TriVista Datasheets

Model Focal Length Aperture Ratio Spectral Resolution* Dispersion*
TR555 1500 mm (A)
500 mm (S)		 f/5.9 0.21 cm-1 (A)
0.6 cm-1 (S)		 37 cm-1 /mm (A)
12.5 cm-1 /mm (S)
TR557 1750 mm (A)
750 mm (S)		 f/9.8 0.17 cm-1 (A)
0.4 cm-1 (S)		 34 cm-1 /mm (A)
8.5 cm-1 /mm (S)
TR777 2250 mm (A)
750 mm (S)		 f/9.8 0.13 cm-1 (A)
0.4 cm-1 (S)		 26 cm-1 /mm (A)
8.5 cm-1 /mm (S)
DM55 1000 mm (A) f/5.9 0.29 cm-1 (A) 49 cm-1/mm (A)
DM77 1500 mm (A) f/9.8 0.21 cm-1 (A) 37 cm-1/mm (A)
*with 1800g/mm grating at 500nm
A - Additive Mode
S - Subtractive Mode