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Biomedical subjects

F G Karrenberg

Publications and source records attributed to F G Karrenberg.

2 recordsLinked to original sources

Split-frame stereoscopy. A new projection system.

The viewing of projected stereo-slides can be achieved by either prismatic or polarized modalities. Two new projection lenses were designed for polarized split-frame stereoscopy. These lenses fit any of the commonly available (35 mm) projectors.

Ophthalmoscopes