Imaging specifications

Imaging type

En face reflectance imaging

Illumination type

Flashed, non-coherent flood illumination

Central illumination wavelength

850 nm (infrared)

Detection type

Low noise CCD camera

Frame rate

9.5 fps

Camera pixel resolution

1.6 µm ¹

Transverse optical resolution

250 line pairs per millimeter (lppmm) ^1,2

Imaging field of view

4° x 4° ¹

System field of view

±30° from locus of fixation^{1, 3}
H ±9° / V ±7° from locus of fixation ^{1, 4}

Image file format

PNG (Portable Network Graphic)

Adaptive optics specifications

Spherical ametropia compensation range

-12 / +6 D

Focusing range

600 µm ¹

Adaptive optics control

Fully automated, highly-resistant to blinking

Adaptive optics illumination

750 nm (infrared) SLED (SuperLuminescent Diode)

Other system specifications

Pupil diameter range

4 - 10 mm

Working distance

50 mm

Internal fixation target

Miniature OLED display

Internal fixation target gaze angle (max)

H ±9° / V ±7°

External fixation target type

LED attached to chinrest

Software interface

rtx1 software suite with the following functionalities: system control, ametropia compensation, pupil alignment, image acquisition, and image processing.

General specifications

Intended use

Research Use Only ⁵

Dimensions (instrument head only)

L 35 x W 17.5 x H 50 cm

Weight (instrument head only)

13 Kg

Optical power output

Infrared, ISO 15004-2:2007 classification group 1
(no potential hazard)

Input voltage

Medical-grade isolation transformer
100-130 & 220-240 AC / 50-60 Hz
Transformer complies with EN60601-1 standard

Output voltage

PC: 12 VDC / 0.5 A
Adaptive optics electronics driver: -1 VDC to +1 VDC / 2A

1. Some specifications are dependent on ocular biometry, pupil diameter, optical defects, ocular media transparency as well as other factors.
2. System can image line pairs of 2 µm in line width.
3. Using external fixation target.
4. Using internal fixation monitor.
5. The rtx1 is intended for research use only (RUO). Not for use in diagnostic procedures. It is neither FDA 510(k) cleanered nor CE marked for use in diagnostic procedures.