| 摘要 |
PROBLEM TO BE SOLVED: To provide a noncontact tonometer being capable of sensing dirts on a chamber widow glass and cover glass. SOLUTION: This device is equipped with a means 6 of projecting a detection light of Z alignment directed toward a cornea C via a cover glass 9 that supports an injecting nozzle 11 and is fixed in front of an air injecting device in an oblique direction against an axial line of the injecting nozzle 11, a means 7 laid in the opposite side to the means 6 for projecting the detection light of Z alignment that borders the direction of an axial line and receives the light of Z alignment reflexed from the cornea E via the cover glass 9, a spherical reflex member126 arranged oppositely to the injecting nozzle 11 instead of the cornea E, an arithmetic means of calculating the alignment light reflexed from the cornea E based on the output of the received light by the means 7 when receiving each reflexed light of alignment, and a means 31 that displays the dirts on the chamber window glass 13 and the cover glass 9, depending on the results in calculation obtained by the arithmetic means. |
