Red and Green Filters in a Black Plastic Frame
 Catalogue Number: 3671 Red and Green Filters in a Black Plastic Frame Category: Equipment Sub-Category: Tests of binocular vision Corporation: Stereo Vision Systems Time Period: 1940 to 1999 Publisher/Manufacturer: Stereo Vision Systems Description Of Item: Black plastic spectacle type frame 165 mm x 60 mm with straight temples 160 mm. Frame contains a red filter on the right and a green filter on the left. Temples have the words STEREO VISION SYSTEMS, PAT. PEND. and caution: not for sun glare, MADE IN U.S.A. embossed on them. Historical Significance: Red-green glasses were supplied by the Bernell Corporation for use with orthoptic/binocular training equipment devised by Bernard Vodnoy. See also Cat. Nos. 1685, 1868, 1904, 2782 and 3670 How Acquired: Donated by Colin Bates Date Acquired: 08/10/2018 Condition: Good Location: Archive room. West wall. Unit 4 Drawer 5 |