A scanning ophthalmoscope uses a scan relay device to generate a two-dimensional collimated light scan from an apparent point source.
Converging beam configurations minimize telescope optics separation while maintaining magnification in handheld light scanning systems.
A scan unit performs two-dimensional fundus imaging while a control unit manages measuring light radiation to stabilize the patient's gaze.
A fundus observation device matches 2D and tomographic image display sizes using stored axial length data.
Segmented scanning protocols resolve precision-speed trade-offs to reduce motion artifacts.
A staircase structure couples display light into a holographic waveguide using intermediate gratings.
Apparatus uses combined human and mounted lens refraction to magnify vitreous particles at 200x for direct retinal viewing.
A fundus observation device overlaps a visual target projection with an optical coherence tomography scanning region to enable precise eyesight measurement.
Replacing mechanical reference mirrors with spectral interferometry eliminates measurement errors from patient movement while reducing scan time.
Adjusting flash intensity via retinal pigmentation analysis prevents over-exposure and under-exposure in diagnostic imaging.
A fundus image capture system guides users to align the device correctly using processor-based contour detection.