UNMAGNIFIED IMAGE SENSOR

Title:

UNMAGNIFIED IMAGE SENSOR

Document Type and Number:

Japanese Patent JPH02143774

Kind Code:

A

Abstract:

PURPOSE:To obtain an unmagnification image sensor whose yield is improved by connecting plural photoelectric conversion elements as to one bit of an analog switch. CONSTITUTION:Plural, e.g., three sensors 1 correspond to one analog switch 2. For example, in the case of a resolution of 8 bit/mm (125mum per bit), a 3-bit sensor is provided per on bit. Since a plural-bit sensor 1 is connected to one bit of the analog switch 2, even if any defect (open or short-circuit) exists in an optional bit of the sensor 1, other bits are acted normally. Thus, an unmagnification image sensor whose yield is improved is obtained.

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Inventors:

OSADA TAKETO

Application Number:

JP29744288A

Publication Date:

June 01, 1990

Filing Date:

November 25, 1988

Export Citation:

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Assignee:

RICOH KK

International Classes:

H01L27/146; H04N1/028; H04N5/335; H04N5/367; H04N5/369; (IPC1-7): H01L27/146; H04N1/028; H04N5/335

Attorney, Agent or Firm:

Morio Sada (1 outside)

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