Stratus OCT User Manual PN 2660021134133 A
Specifications
11-1
(11) Specifications
Tomographic Imaging
• Purpose: Cross sectional imaging of fundus
• Signal Type: Optical scattering from tissue
• Signal source: Super Luminescent Diode (SLD), 820 nm
•Optical Power: 750 microwatts at cornea. SLD current will shut off if a safety circuit
is activated (upon scanner failure)
• Spot Size at Retina: 20 μm in tissue
• Longitudinal/Axial Resolution: 10 μm in tissue
• Transverse Resolution: 20 μm in tissue
• Scanners: Galvanometric mirrors
• Scan Patterns: Repeat, Line, Circle, Raster Lines, Cross Hair, Radial Lines, Macular
Thickness Map, Optic Disc, Proportional Circle, Concentric 3 Rings, RNFL Thickness
(3.4), Nerve Head Circle, RNFL Thickness (2.27xdisc), X-Line, RNFL Map, Fast Macular
Thickness Map, Fast Optic Disc, Fast RNFL Thickness (3.4), Fast RNFL Map
• Scan Pixels: Adjustable from 131,072 to 786,432 (1024 longitudinal x 128 to 768
transverse)
• Scan Speed: 400 A-scans per second
• Scan Acquisition Time: Approx. 0.32 seconds (128 A-scans minimum.) to approx. 1.92
seconds (768 A-scans maximum.)
• Longitudinal (Depth) Scan Range: 2 mm in tissue
Fundus Imaging
• Purpose: Fundus alignment for tomographic imaging
• Signal Type: CCD image
• Field of View: 26° (horizontal) x 21° (vertical)
• Focus Adjustment Range: -12 to +20 D (diopters)
• Viewing Method: 15" Color Flat Panel Display
• Illumination: Halogen Lamp
• Internal Fixation: 32 × 16 Green LED dot matrix
• External Fixation: Slit lamp type adjustable blinking LED
Electrical Requirements
• Single phase:
100/120V~ systems:(± 10%), 50/60Hz, 6A
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