Abstract: A photoelectric converter has photodetectors having plural arrays wherein plural photoreceiving elements are arranged for detecting incident light. The converter has a reading circuit for reading an output signal from the photodetector, the reading circuit having a detection circuit for detecting maximum and minimum signals from the plural photoreceiving elements of the photodetector. The photoelectric converter has at least three arrays arranged parallel to each other or substantially parallel to each other, and at least one array is arranged in a direction perpendicular to the at least three arrays. The reading circuit is arranged adjacent to the plural arrays, and the photodetectors and the reading circuit are provided on a common substrate.

Abstract: An image pickup apparatus has a first sensor, and first control circuitry for controlling an accumulation time of said first sensor based on an output signal of said first sensor and a first reference level. Also provided is a second sensor, and second control circuitry for controlling an accumulation time of the second sensor based on an output signal of the second sensor and a second reference level which is different from the first reference level. The second control circuitry also compensates a level difference between a level of the output signal of the first sensor and a level of the output signal of the second sensor.

Abstract: An image pickup apparatus comprises a first line sensor and a second line sensor. A first control circuit controls an accumulation time of the first line sensor based on an output signal of the first line sensor. A second control circuit controls an accumulation time of the second line sensor based on an output signal of the second line sensor. A compensating circuit compensates a level difference between a level of the output signal of the first line sensor and a level of the output signal of the second line sensor by setting a control characteristic of the first control means to be different from a control characteristic of the second control means.

Abstract: This invention relates to an opening/closing apparatus for preventing abrupt fall and rotation of a keyboard cover in a keyboard musical instrument.