Ocean Optics Ventana - Manual (Page 4)

Ventana Data Sheet
4 891-00000-200-05-201305
Specification Ventana 532 Ventana 785 Ventana 785L Ventana VIS/NIR
Power 12 VDC
Gratings
1600 lpmm HD
VPG
1625 lpmm HD VPG
450 lpmm at CWL
580 nm
Diffraction
efficiency 85% peak at 610
nm
83% average for S&P
65% average for
S&P
Optical input SMA 905
Slit Size 50 µm
Fiber
diameter
Optimized for 600µm, NA = 0.39 fiber input
Resolution
(FWHM) cm
-1
20 cm
-1
10 cm
-1@
810 nm N/A
Resolution
(FWHM) nm
0.6 nm 0.7 nm
@
810 nm 4.0 nm
f/# 1.3 2.0
Signal-to-
noise ratio
~550:1 (Typical)
Integration
time
22 ms – 4 min
Wavelength
Range
533 – 690 nm 800 – 940 nm 800 – 940 nm 430 – 1100 nm
Interface USB 2.0 (no external accessory connector access)
Ventana 785L Laser Specifications
Specification Value
Wavelength 785 nm
Working Distance 21.95 mm
Image Spot Size 10 mm
Sample Spot Size 75 mm
Laser type Single-mode laser diode stabilized with VBG
Laser control Enable/disable
Laser power stability < 1% after 30 seconds from being enabled