Humphrey Lens Analyzer (focimeter) Model 340
 Catalogue Number: 1727 Humphrey Lens Analyzer (focimeter) Model 340 Category: Equipment Sub-Category: Vertometer, lensometer, focimeter Year Of Publication/Manufacture: 1980 Time Period: 1940 to 1999 Place Of Publication/Manufacture: San Leandro, California, USA Publisher/Manufacturer: Humphrey Instruments Description Of Item: Electronic automatic lens analyser (focimeter) by the Humphrey Instruments company. Prints out measurements of lens powers, optical centres and prism. Label 'HUMPHREY Instruments/ a Smith/Kline company. LENS ANALYZER'. On rear: 'Humphrey Instruments, SAN LEANDRO, CALIFORNIA 94577/ LENS ANALYZER MODEL 340/ SERIAL NO. 340.1001' 'MADE IN USA/ US PATENT 3,880,502 4,098.002 4,182,572 4,180,325 & 4,199,816 6/80'. H: 34cm x W: 33.5cm x D: 34.5cm Historical Significance: This is a very early auto lensmeter for determining the optical power of lenses of spectacles, which was used in the spectacle making laboratory of the Australian College of Optometry clinic. The Zeiss company website records that it ceased servicing this model of instrument in 2006. How Acquired: Donated by ACO Clinic laboratory Date Acquired: 8.12.2010 Condition: Good but not fully functional Location: Archive room. East wall Unit 3 Cupboard |