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US 2004/0070825 A1Published application
Stereoscopic viewing apparatus
OwnerNicholas Charlesworthinventor
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OwnerNicholas Charlesworthinventor
Estimating the term…
A pair of spectacles adapted for viewing stereoscopic images is disclosed. In accordance with the invention, within the body of the spectacles, there is provided a pair of mirror assemblies each of which has a pair of substantially parallel mirrors arranged in periscope-type manner so that light is shifted laterally between the mirrors. The spectacles include an adjustment mechanism which simultaneously adjusts one of the mirrors in each assembly by an identical amount, but in the opposite direction so that the two pairs of images seen by the wearer become superimposed, whereupon the wearer immediately perceives a stereo or 3D image in the region where he perceives the superimposition to occur. Means are also provided to allow the separation of left and right casings (10, 12), each housing one of the mirror assemblies and one set of apertures, ti be adjusted. This allows the interocular spacing to be varied.
A stereoscopic viewing device (2) comprising a body (7) having a first inner pair of apertures (10A, 12A) spaced apart by a distance equivalent to the common interocular distance of a human and adapted to be disposed adjacent the eyes of a wearer and a second outer pair of apertures (44, 42) in the front of the body offset in opposite directions from said inner apertures by similar distances, said body including a pair of mirror assemblies (54, 56 and 50, 52) disposed between said inner and outer apertures, each mirror assembly including a pair of mirrors arranged in periscope manner being spaced apart and substantially parallel so that light entering through the outer apertures and impinging on the first mirrors (54, 50) of each assembly is reflected onto the second mirror (56, 52) before being again reflected through the inner aperture, the inclination of at least one of the mirrors of each assembly being adjustable with respect to the alternate mirror of that assembly to adjust the field of view seen through the said aperture characterised in that an adjustment mechanism (20, 24, 26, 28, 30) is incorporated into the body which constrains the adjustable mirror (50) of one assembly to move by an identical angle but in opposite direction to the adjustable mirror (54) of the alternate assembly.
A device according to any preceding claim characterised in that the body (7) comprises a plurality of components including left and right casings (74, 72) in which said apertures are provided and which include said mirror assemblies (54, 56, 50, 52).
A device according to any preceding claim characterised in that a pair of (4, 6) limbs are connected to the body (7) of the device to enable same to be positioned on the face of a wearer in the style of spectacles.
A device according to any preceding claim characterised in that the left and right casings (74, 72) are separated by a stationary bridge portion (14) adapted to sit on the bridge of the nose of a wearer.
Dependencies are inferred from the claim text.