Title:
【発明の名称】完全密着型イメージセンサ及びその製造方法
Document Type and Number:
Japanese Patent JP3079969
Kind Code:
B2
Abstract:
A full-contact type image sensor which includes a light source, a plurality of photo-electric conversion elements having apertures, a photoelectric conversion region, a plurality of micro-lenses, and an optical fiber converging member. The light from the light source is allowed to pass solely through the apertures and is blocked by the photoelectric conversion regions. The micro-lenses may be provided in one-to-one correspondence to a plurality of apertures or one-to-one correspondence to a plurality of optical fibers. The micro-lenses may be provided at least at one of a photoelectric conversion element side end and an original document side end of the optical fiber converging member. Instead of using such micro-lenses, the optical fiber converging member may be arranged such that a numerical aperture of the optical fibers at its first region on a side of the photoelectric conversion elements is set to be greater than a numerical aperture of the optical fibers at its second region on a side of the original document. It is possible to provide increased light utilization efficiency.
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Inventors:
Ichiro Fujieda
Hiroshi Haga
Hiroshi Haga
Application Number:
JP23649095A
Publication Date:
August 21, 2000
Filing Date:
September 14, 1995
Export Citation:
Assignee:
NEC
International Classes:
G02B6/42; G02B3/00; G02B6/04; G02B6/124; H01L27/146; H04N1/028; H04N1/031; G02B6/12; (IPC1-7): H04N1/028
Domestic Patent References:
| JP6291935A | ||||
| JP6325158A | ||||
| JP1125170A | ||||
| JP61171019U | ||||
| JP59164359U |
Attorney, Agent or Firm:
Naoki Kyomoto