This revolutionary product will provide you with everything you need for any type of electroretinogram, visual evoked potential, or electro-oculogram. The ultra-bright ganzfeld – capable of over 15,000,000 different colors – will allow you to perform ERGs you never imagined possible including on-off, double flash, photopic negative response, scotopic threshold response, and s-cone ERGs. Amplification with our digital biomedical amplifiers allows faithful reproduction of every nuance of your recordings.
Design Features
- The world's brightest and most capable ganzfeld
- Ultra low-noise digital amplifiers
- Built-in ERG normative data, or use your own
Key Specifications
- Flash stimuli from -50 dB to +18 dB in any color
- Total flash range from -75 dB to +30 dB in 1 dB steps
- Background luminance 0.005 to 5000 cd/m 2 in any color
- ISCEV Standard ERG / EOG / VEP
- Double flash, On/Off, S-Cone, photopic negative response, scotopic threshold response ERGs
- SunBurst™ Color LED Ganzfeld
- Lightest, brightest, most capable
- UBA-4204 Digital Biomedical Amplifier
- No more ground electrodes!
- Multifocal ERG - Multifocal VEP option
- Now with long m-Sequence!
- Sweep VEP (objective visual acuity) option
- Dark adaptometry option
- Compatible with legacy LKC data. Migrate data from your previous LKC system.
- GLP (21CFR11) Compliance Pack option
- Color or white-only mini-ganzfeld option
- CE and MET (UL equivalent) certified
SunBurst Ganzfeld
Easy to Use
- Small and lightweight – 13.5” W x 10.5” D x 8” H (34.3 cm x 26.7 cm x 20.3 cm), 5.0 lbs (3.7 kg)
- Ergonomic mounting arm provides easy and comfortable adjustment to any patient. Quick mount feature and built-in grips for easy positioning over prone patient.
- Infrared fixation camera allows simple visualization of fixation and electrode placement.
- Cleanable interior
- Dim red illumination to assist during electrode placement.
Clinical Capabilities
- SunBurst can produce all ISCEV standard stimuli, PLUS Double Flash ERG; On/Off Response ERG; S-Cone ERG; Chromatic backgrounds and stimuli (e.g. photopic negative response); Scotopic Threshold Response ERG; Infrared flash for retinal implant testing.
- Latencies and amplitudes of ISCEV standard ERGs match results from legacy LKC products. No need for new normative data.
- 9 red EOG fixation LEDs in ±15° horizontally. Brightness adjustable over 20 dB range in 256 steps.
And Beyond
- mUses Red (627 nm), Green (530 nm), Blue (470 nm), Amber (590 nm) and white LEDs and Xenon flash.
- Dynamic flash luminance range of 105 dB (+30 dB to -75 dB) in 1 dB steps.
- Xenon flash luminance of 2.5 - 2500 cd-s/m (0 dB to +30 dB).
- LED flash luminance of 2.5 • 10 - 160 cd-s/m (-50 dB to +18 dB) in any arbitrary color.
LED flash luminance of -75 dB to -50 dB in white.
- Flash duration <5 ms.
- Background light from 0.005 to 5000 cd/m in 0.01 dB increments in any color;
In white as low as 10-6 cd/m2
- Easy verification of calibration
- Flicker stimuli to +18 dB; 1 Hz repetition rate for intensities > +18 dB
- Long duration flash (On/Off response) stimuli programmable to 6.5 seconds in 5 ms increments, adjustable intensity and chromaticity.
- Arbitrary waveform capability using RGB stimuli to 2000 points (10 seconds) per cycle.
- Fully isolated Trigger In and Trigger Out signals for interfacing to other equipment
UBA-4204 Amplifier
| Communication: |
Fully Isolated Fiber Optic TOSLink connection over 2 meter cable |
| Input Type: |
4 channel differential with > 10 MÙ impedance. No ground electrode needed! |
| Connector Type: |
1.5 mm Male DIN Safety electrode connections |
| Noise: |
< 0.7 ìV p-p @ 100 Hz Sampling Rate, 10 KÙ Input
< 1.8 ìV p-p @ 1000 Hz Sampling Rate, 10 KÙ Input |
| CMRR: |
> 110 dB at 50-60 Hz |
| Frequency Range: |
DC to > 1.0 MHz without aliasing. Cutoff is sample rate dependent. |
| Input Gain: |
1, 2, 4, 8, 16, 32, 64 (user selectable) |
| Data Resolution: |
3.7 nV / bit (Gain = 64) to 250 nV / bit (Gain = 1) |
| Input Range: |
± 2 V (Gain = 1) |
| Stability: |
< 250 nV / °C drift |
| Accuracy: |
< 0.2% absolute, Nonlinearity < 0.0010% |
| Sampling Rate: |
5 Hz to 3750 Hz |
| Filters: |
High cut and low cut filters implemented in application software |
| Safety: |
No wires (fiber optics only) means no leakage currents! |
| Power Source: |
Rechargeable Li-Ion Battery provides up to 12 hours continuous use per charge |
| Recharge Time: |
4 hours to 80% capacity, 8 hours to 100% - Charger included |
| Size: |
5¾” x 3¼” x 1” (14.6 cm x 8.3 cm x 2.5 cm) |
| Weight: |
8 oz. (225 g), including battery |
More Information :
What System is Right for Me?
Resources (PDF):
UTAS + Sunburst brochure
UBA-4204
MFERG/MFVEP brochure
UTAS user manual
UTAS service manual
Contact us:
Contact us for more information
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