Other titles:STEREOSCOPIC PROJECTION METHODS [Alternative Title]
Summary: One in a series of research reports produced by TRE, Malvern. This report demonstrates their progress in the field of improving stereoscopic projection.
Description: The report addresses:
Factors in stereoscopic projection. The difficulties they are addressing in their research, including how to overcome eyestrain caused whilst viewing films caused by inconsistencies between the projected image and the human eye's ability to measure depth of vision.
Viewing accessories at the eyes. Equipment being designed for use with human eyes.
Methods. Anaglyph filters; projecting and synchronising two separate images onto the same viewing surface using optical devices; alternating shutter mechanisms; Polaroid spectacles married with alternating image projection; Vectograph methods, superimposing two separate images over one another and viewed with purpose built spectacles; splitting each frame on a film into two and using special lenses to project the finished result through.
Projection systems. Polarised light, alternate frame systems and the Beam Splitting principle.
Geometrical requirements. Ensuring the human eye does not converge or diverge when presented with an image, thus causing eye strain; parallel shooting; formulae used to calculate the spacing and angles between two separate projectors to ensure both images are merged into one on the projection surface.
The TRE Beam Splitter attachment. A device designed for use in conjunction with a camera and the principles behind its use.
The TRE Opposite Sense Units. Stereoscopic camera attachments developed by TRE, including the Mark 1 developed in 1947, the Mark 2 which as a modified version of the previous model, Mark 3 which used prisms and the Mark 3C designed for use with miniature cameras such as the Leica.
Alternative Title:STEREOSCOPIC PROJECTION METHODS [Alternative Title]
Colour:B&W
Digitised:
Object_Number:TRE 180
Sound:Sound
Access Conditions:
Featured Period:1946-1975
Production Date:1951
Production Country: GB
Production Details: Telecommunications Research Establishment (Production company)
