| 摘要 |
<p>A focus state detecting device which utilizes image sensor arrays. The focus detecting device comprises a light receiving device including a pair of arrays of photoelectric converting elements of charge accumulation type for respectively receiving light beams coming from different exit pupils of an objective lens, and generating an output signal in each of plural blocks formed in a distance measuring zone defined in the object field, a level discriminating device for discriminating the level of the output signal of each block from the light receiving device, and detecting a block or blocks in which the level of the output signal is outside a predetermined level range, a regulating device for regulating the signal level in such a manner that the output signal of the block or blocks detected by the level discriminating device is brought into the predetermined level range, a generating device for generating focus information for each block according to the output signal in the predetermined level range, and a selecting device for selecting optimum focus information from the focus information of the plural blocks.</p> |
