High-speed camera


High-speed camera attachable to rigid endoscopes, intended for recording the function of vocal folds.

ALI Cam-HS1 – high-speed camera

ALI Cam-HS1 – high-speed camera

Unique functions and features not found in classic endoscopic equipment in order to make the laryngologist’s and phoniatrician’s work easier and more efficient to a maximum extent:

  • true „slow motion” records realized in High-Speed mode at speed of up to 4000 frames per second, enabling to conduct fully reliable functional diagnostics, even in the cases where the stroboscopic technique fails – particularly useful in assessment of voices with significant pathologies;
  • detailed visualization of vocal folds in the High-Speed mode thanks to optimally chosen image magnification;
  • high resolution (HD) mode up to 1024x1024 pixels at normal speed (25 frames per second) for diagnostics of organic changes and general imaging of the whole larynx;
  • electronically controlled lens with manual or automatic focusing; the manual mode uses a comfortably positioned, precision knob;
  • special endoscope attachment preventing its rotation and eliminating the related diagnostic errors;
  • improved assessment of the imaged objects thanks to monitoring focus settings and determining the distance of the objects from the endoscope tip;
  • ability to record sound in parallel with the high-speed video sequence;
  • works with recognized in Poland original software (DiagnoScope Specialist) enabling to conduct full kymographic diagnostics, including vocal fold motion parameterization and generation of phonovibrograms.

Basic technical data:

Sensor 1920x1200 pixels, progressive, 2/3”
Image field Limited to 1024x1024 pixels in HD mode
Maximum frame rate
@ result image resolution
4000 frames/s @ 320 x 288 pixels
3200 frames/s @ 480 x 400 pixels
2400 frames/s @ 512 x 480 pixels
25 frames/s @ 1024 x 1024 pixels
Cable length 180 cm
Power consumption max. 2 A
Main module power 220–240 VAC, 47–63 Hz
Dimensions Main module: 370 x 230 x 100 mm
Camera: ∅ 42 x 160 mm
Weight Main module: 3,6 kg
Camera (with lens and endoscope attachment): 0,27 kg
Protection level IP20

Kymography analyses based on videos recorded using high-speed camera ALI Cam-HS1 and illuminator ALI Lum-MF1 or ALI Lum-C1.

Some pictures courtesy of prof. Ewa Niebudek-Bogusz MD PhD – Professor at the Clinic of Audiology and Phoniatrics, Nofer Institute of Occupational Medicine.