| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens meter not requiring to turn glasses when continuously measuring refraction property and a spectrum transmittance. SOLUTION: The lens meter comprises an upper case 3 and a lower case 4 projected respectively to upper front and lower front of the body case 1, a lens receiver 5 provided on the upper surface of the lower case 4, a projection optical system 10 for projecting a measuring light flux to a spectacle lens L provided in the upper case 3 and supported on the lens receiver 5, a reception optical system 12 provided in the lower case 4 for introducing the measuring light flux having transmitted the spectacle lens L to a CCD 11, and a spectrum transmittance meter 20 provided in the lower case 4. Furthermore, the lower case 4 comprise a fixed case part 4a provided with the lens receiver 5 and a movable case part 4b arranged below the fixed case part 4a capable of withdrawing forward. The spectrum transmittance meter 20 is provided in the movable case part 4b and the lens arrangement space 19 for spectrum transmittance measurement of the spectrum transmittance meter 20 is provided on the movable case part 4b so as to open upward and sideward when withdrawing the movable case part 4b. COPYRIGHT: (C)2006,JPO&NCIPI
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