Multi-plate type image pickup apparatus having picture elements for producing color and luminance signals

• US 5,018,006 A
• Filed: 12/26/1989
• Issued: 05/21/1991
• Est. Priority Date: 10/31/1985
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Hashimoto, Seiji
• Primary Examiner(s): Britton, Howard W.
• Assistant Examiner(s): VU, KIM Y
• Application Number:
  US07/456,966
• Time in Patent Office: 511 Days
• Field of Search: 358/41, 358/43, 358/44, 358/55, 358/75
• US Class Current: 348/275
• CPC Class Codes: H04N 25/133 including elements passing panchromatic light, e.g. filters passing white light
• CPC Class Codes: H04N 25/134 based on three different wavelength filter elements

Abstract

A multi-plate type image pickup apparatus having solid-state image pickup devices each having a plurality of picture elements for producing color and luminance signals, respectively. The size of at least one of the plurality of picture elements in the image pickup device producing color signals being greater than that of the plurality of picture elements of the image pickup device producing luminance signals.

Claims

1. A multi-plate type image pickup apparatus comprising:

a solid-state image pickup device for producing color signals comprising a plurality of picture elements; and

a solid-state image pickup device for producing luminance signals comprising a plurality of picture elements,

wherein the size of at least one of said plurality of picture elements of said solid-state image pickup device for producing color signals is greater than that of each of said plurality of picture elements of said solid-state image pickup device for producing luminance signals, and

wherein a green filter is arranged in front of at least one of said plurality of picture elements for producing luminance signals.

2. A multi-plate type image pickup apparatus according to claim 1, wherein the size of at least one of said plurality of picture elements of said solid-state image pickup device for producing color signals is substantially two times larger than that of each of said plurality of picture elements of said solid-state image pick-up device for producing luminance signals.

3. A multi-plate type image pickup apparatus according to claim 1, wherein at least one of said plurality of picture elements for producing color signals is longer than each of said plurality of picture elements for producing luminance signals, in the horizontal direction.

4. A multi-plate type image pickup apparatus according to claim 3, wherein at least one of said plurality of picture elements for producing color signals is substantially two times longer than each of said plurality of picture elements for producing luminance signals.

5. A multi-plate type image pickup apparatus according to claim 1, wherein filter of different colors are arranged in a two line sequence in said solid-state image pickup device for producing color signals.

6. A multi-plate image pickup apparatus comprising:

a solid-state image pickup device for producing color signals comprising a plurality of picture elements; and

a solid-state image pickup device for producing luminance signals comprising a plurality of picture elements,

wherein the size of at least one of said plurality of picture elements of said solid-state image pickup device for producing color signals is greater than that of each of said plurality of picture elements of said solid-state image pickup device for producing luminance signals, and

wherein a colorless filter is arranged in front of at least one of said plurality of picture elements for producing luminance signals.

7. A multi-plate type image pickup apparatus according to claim 6, wherein the size of at least one of said plurality of picture elements of said solid-state image pickup device for producing color signals is substantially two time larger than that of each of said plurality of picture elements of said solid-state image pick-up device for producing luminance signals.

8. A multi-plate type image pickup apparatus according to claim 6, wherein at least one of said plurality of picture elements for producing color signals is longer than each of said plurality of picture elements for producing luminance signals, in the horizontal direction.

9. A multi-plate type image pickup apparatus according to claim 8, wherein at least one of said plurality of picture elements for producing color signals is substantially two times longer than each of said plurality of picture elements for producing luminance signals.

10. A multi-plate type image pickup apparatus according to claim 6, wherein filter of different colors are arranged in a two line sequence in said solid-state image pickup device for producing color signals.