| 摘要 |
The invention relates to a measuring device ( 01 ) for measuring the refraction properties of optical lenses ( 07 ), especially spectacle glasses, comprising a measuring light grid ( 20 ) for producing a plurality of light beams ( 16 ) which are deflected by the lens ( 07 ) as a result of refraction of light, and comprising a measuring light detector ( 12 ) on which the deflected light beams are projected and are there recorded electronically, and comprising an evaluation device in which the refraction properties of the lens ( 07 ) are determined from the measurement signals of the measuring light detector ( 12 ), wherein a screen ( 10 ) comprising a plurality of light passage openings ( 23, 24 ) is arranged between the lens ( 07 ) to be studied and the measuring light detector ( 12 ), wherein the light beam ( 16 ) produced by the measuring light grid ( 20 ) and deflected at the lens ( 07 ) by refection of light is projected through the various light passage openings ( 23, 24 ) of the screen ( 10 ) along separate ray paths onto the measuring light detector ( 12 ).
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