| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ophthalmological apparatus capable of surely avoiding the malfunction of an alignment operation due to erroneous recognition or erroneous detection of a center ghost as an alignment visual target in the alignment operation. <P>SOLUTION: A non-mydriasis fundus camera (one example of the ophthalmological apparatus) comprising an illumination optical system 10, an alignment system 40 and an observation optical system 30 as optical systems is provided with an alignment visual target judgement processing part (step S30, Figure 8) for obtaining a difference between a lighting image acquired from the observation optical system 30 in the state of lighting an alignment LED 41 provided in the alignment system 40 and a put-out image acquired from the observation optical system 30 in the state of putting out the alignment LED 41 provided in the alignment system 40 and judging alignment visual target candidates detected by the luminance distribution characteristics of the difference image as true alignment visual targets 310 and 310 recognized by an observation image. <P>COPYRIGHT: (C)2009,JPO&INPIT |
