Fritz Dr. Strähle

Imaging optics with adjustable optical power and method of adjusting an optical power of an optics

Ophthalmoscopic attachment for a surgical microscope

Endoscopic attachment for a stereoscopic viewing system

Stereoendoscope having a folded sight line

Illumination device for observation equipment e.g. ophthalmic operation microscope, has reflex lens aperture provided in illumination optic, where reflex lens aperture covers reflex light that is radiated from surface of lens unit

Adapter for connecting a stereoscopic endoscope to electronic documentation devices

Afocal zoom system

Pancratic magnification system

Beleuchtungseinrichtung sowie Beobachtungseinrichtung

Optical system having a radial difference in refractive index