| 摘要 |
There is disclosed a method for measuring the distance to an object, using an apparatus having two optical systems which have optical axes parallel with each other, and detecting means on which images are respectively formed by the two optical systems, comprising the steps of: (a) obtaining correlation between illumination distributions of object images formed on the two detecting means; (b) changing the positional relationships between the respective optical systems and detecting means on the basis of the correlation obtained in the step (a); (c) obtaining positional relationship between the two optical systems and the two detecting means when a desired correlation is obtained in steps (a) and (b); and (d) obtaining the distance between an object and said apparatus on the basis of the desired positional relationship obtained in the step (c).
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