Bernell Orthoptic Training Tranaglyphs: ghgBC/51, BC/53 and BC/54.
 Catalogue Number: 3670 Bernell Orthoptic Training Tranaglyphs: ghgBC/51, BC/53 and BC/54. Category: Equipment Sub-Category: Vision Therapy Equipment Corporation: Bernell Corporation Year Of Publication/Manufacture: 1980 Time Period: 1940 to 1999 Place Of Publication/Manufacture: South Bend, Indiana, USA Publisher/Manufacturer: Bernell Corporation Description Of Item: Five translucent slides (255 mm x 140 mm) imprinted with four or two sets of separated images in red and green, also sets of concentric circles with a square, an X and a circle within them and a centrally placed diamond. When fused the concentric circle targets appear three dimensional. The diamond provides a suppression check. All slides have TRANAGLYPH ORTHOPTIC SLIDE BC/51 (3 slides), BC/53 or BC/54 and 1980 BERNELL CORP. South Bend, IN. on the border. All have accompanying instruction sheets. Historical Significance: Bernard Vodnoy established the Bernell Corporation to produce affordable vision therapy equipment for home use. See also Cat. Nos. 1685, 1868, 1904, 2782 and 3671. How Acquired: Donated by Colin Bates Date Acquired: 08/10/2018 Condition: Very good. One slide (BC/52) missing from set. Location: Documents Room Red Daytona Cabinet Drawer 2 |