Patent US5287147A successfully refreshed from Google Patents.
US5287147A
Expired / Lapsed
US
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Original scanning apparatus with fixed light source
Assignee: Canon Inc
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Filing: 1992-01-22
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Granted: 1994-02-15
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Expires: 2012-01-22
Abstract
Abstract An original scanning apparatus comprising original support means on which an original is rested, elongated light source means for illuminating the original rested on the original support means, reflection means for reflecting light from the elongated light source means toward the original support means. The elongated light source means is fixed and the reflection means being shiftable, so that the original rested on the original support means is scanned by shifting the reflection means. Apparatus further includes side reflector means disposed at a longitudinal end of the elongated light source means and extending along a shifting direction of the reflection means.
Inventors
- 👤 Motomu Fukasawa
- 👤 Kazuo Fujibayashi
- 👤 Keisuke Araki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:38
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/54; G03B27/542; G03B27/522; G03B27/525; G03B27/526; G03G; G03G15/00; G03G15/04; G03G15/043; G03G15/0435
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
121 words
An original scanning apparatus comprising: original support means on which an original is rested; elongated light source means for illuminating the original rested on said original support means; reflection means for reflecting light from said elongated light source means toward said original support means; said elongated light source means being fixed and said reflection means being shiftable, so that the original rested on said original support means is scanned by shifting said reflection means; and side reflector means disposed at a longitudinal end of said elongated light source means and extending along a shifting direction of said reflection means, wherein said side reflector means has a variable reflection area varied in accordance with a distance from said elongated light source means.
Claim 2
Dependent Claim
121 words
An original scanning apparatus comprising: original support means on which an original is rested; elongated light source means for illuminating the original rested on said original support means; reflection means for reflecting light from said elongated light source means toward said original support means; said elongated light source means being fixed and said reflection means being shiftable, so that the original rested on said original support means is scanned by shifting said reflection means; and side reflector means disposed at a longitudinal end of said elongated light source means and extending along a shifting direction of said reflection means, wherein said side reflector means has a variable reflection area varied in accordance with a distance from said elongated light source means.
Claim 3
Dependent Claim
25 words
An original scanning apparatus according to claim 1, wherein said side reflector means are disposed at both longitudinal ends of said elongated light source means.
Claim 4
Dependent Claim
125 words
An original scanning apparatus, comprising: original support means on which an original is rested; elongated light source means for illuminating the original rested on said original support means; reflection means for reflecting light from said elongated light source means toward said original support means; said elongated light source means being fixed and said reflection means being shiftable, so that the original rested on said original support means is scanned by shifting said reflection means; and side reflector means disposed at a longitudinal end of said elongated light source means and extending along a shifting direction of said reflection means, wherein said side reflector means has a reflection surface an angle of which is varied in accordance with a distance from said elongated light source means.
Claim 5
Dependent Claim
125 words
An original scanning apparatus, comprising: original support means on which an original is rested; elongated light source means for illuminating the original rested on said original support means; reflection means for reflecting light from said elongated light source means toward said original support means; said elongated light source means being fixed and said reflection means being shiftable, so that the original rested on said original support means is scanned by shifting said reflection means; and side reflector means disposed at a longitudinal end of said elongated light source means and extending along a shifting direction of said reflection means, wherein said side reflector means has a reflection surface an angle of which is varied in accordance with a distance from said elongated light source means.
Claim 6
Dependent Claim
25 words
An original scanning apparatus according to claim 3, wherein said side reflector means are disposed at both longitudinal ends of said elongated light source means.
Claim 7
Dependent Claim
112 words
An original scanning apparatus, comprising: original support means on which an original is rested; elongated light source means for illuminating the original rested on said original support means; reflection means for reflecting light from said elongated light source means toward said original support means; said elongated light source means being fixed and said reflection means being shiftable, so that the original rested on said original support means is scanned by shifting said reflection means; and side reflector means disposed at a longitudinal end of said elongated light source means and extending along a shifting direction of said reflection means, wherein said side reflector means comprises a Fresnel mirror of a reflection type.
Claim 8
Dependent Claim
112 words
An original scanning apparatus, comprising: original support means on which an original is rested; elongated light source means for illuminating the original rested on said original support means; reflection means for reflecting light from said elongated light source means toward said original support means; said elongated light source means being fixed and said reflection means being shiftable, so that the original rested on said original support means is scanned by shifting said reflection means; and side reflector means disposed at a longitudinal end of said elongated light source means and extending along a shifting direction of said reflection means, wherein said side reflector means comprises a Fresnel mirror of a reflection type.
Claim 9
Dependent Claim
25 words
An original scanning apparatus according to claim 5, wherein said side reflector means are disposed at both longitudinal ends of said elongated light source means.
Claim 10
Dependent Claim
135 words
An original scanning apparatus, comprising: original support means on which an original is rested; elongated light source means comprised of a plurality of luminous bodies arranged in a line; reflection means for reflecting light from said elongated light source means toward said original support means; said elongated light source means being fixed and said reflection means being shiftable, so that the original rested on said original support means is scanned by shifting said reflection means; side reflector means disposed at a longitudinal end of said elongated light source means and extending along a shifting direction of said reflection means; and a distance between said side reflector means and the outermost luminous body disposed at said longitudinal end of said elongated light source means being selected a half of a distance between the adjacent luminous bodies.
Claim 11
Dependent Claim
135 words
An original scanning apparatus, comprising: original support means on which an original is rested; elongated light source means comprised of a plurality of luminous bodies arranged in a line; reflection means for reflecting light from said elongated light source means toward said original support means; said elongated light source means being fixed and said reflection means being shiftable, so that the original rested on said original support means is scanned by shifting said reflection means; side reflector means disposed at a longitudinal end of said elongated light source means and extending along a shifting direction of said reflection means; and a distance between said side reflector means and the outermost luminous body disposed at said longitudinal end of said elongated light source means being selected a half of a distance between the adjacent luminous bodies.
Claim 12
Dependent Claim
18 words
An original scanning apparatus according to claim 7, wherein said elongated light source means comprises a halogen lamp.
Claim 13
Dependent Claim
31 words
An original scanning apparatus according to claim 7, wherein said side reflector means is arranged perpendicular to said original support means and extends through the whole scanning area of the original.
Claim 14
Dependent Claim
30 words
An original scanning apparatus according to claim 7, wherein said side reflector means has a variable reflection area varied in accordance with a distance from said elongated light source means.
Claim 15
Dependent Claim
34 words
An original scanning apparatus according to claim 7, wherein said side reflector means has a reflection surface an angle of which is varied in accordance with a distance from said elongated light source means.
Claim 16
Dependent Claim
20 words
An original scanning apparatus according to claim 7, wherein said side reflector means comprises a Frennel mirror of reflection type.
Claim 17
Dependent Claim
25 words
An original scanning apparatus according to claim 7, wherein said side reflector means are disposed at both longitudinal ends of said elongated light source means.
Claim 18
Dependent Claim
138 words
An original scanning apparatus, comprising: original support means on which an original is rested; elongated light source means comprised of a plurality of luminous bodies arranged in a line; movable reflection means for reflecting light from said elongated light source means toward said original support means; a pair of side reflector means disposed at both longitudinal ends of said elongated light source means and extending along a shifting direction of said movable reflection means, said elongated light source means being fixedly provided and said reflection means being constructed shiftable, so that the original rested on said original support means is scanned by shifting said reflection means; and a shield member disposed between said elongated light source and said movable reflection means for blocking light from passing directly from said elongated light source means to said movable reflection means.
Claim 19
Dependent Claim
138 words
An original scanning apparatus, comprising: original support means on which an original is rested; elongated light source means comprised of a plurality of luminous bodies arranged in a line; movable reflection means for reflecting light from said elongated light source means toward said original support means; a pair of side reflector means disposed at both longitudinal ends of said elongated light source means and extending along a shifting direction of said movable reflection means, said elongated light source means being fixedly provided and said reflection means being constructed shiftable, so that the original rested on said original support means is scanned by shifting said reflection means; and a shield member disposed between said elongated light source and said movable reflection means for blocking light from passing directly from said elongated light source means to said movable reflection means.
Claim 20
Dependent Claim
24 words
An original scanning apparatus according to claim 14, wherein a surface of said shield member facing said elongated light source means is light reflectable.
Claim 21
Dependent Claim
29 words
An original scanning apparatus according to claim 14, further including additional reflection means fixedly provided for reflecting light from said elongated light source means toward said movable reflection means.
Claim 22
Dependent Claim
35 words
An original scanning apparatus according to claim 16, wherein said fixedly provided reflection means has a cylindrical surface for collecting light from said elongated light source in a short direction of said elongated light source.
Claim 23
Dependent Claim
22 words
An original scanning apparatus according to claim 17, wherein said cylindrical surface of said fixedly provided reflection means has an elliptical configuration.
Claim 24
Dependent Claim
22 words
An original scanning apparatus according to claim 17, wherein said cylindrical surface of said fixedly provided reflection means has a parabolic configuration.
Claim 25
Dependent Claim
22 words
An original scanning apparatus according to claim 16, wherein said fixed reflection means has a plurality of reflection portions which are divided.
Claim 26
Dependent Claim
30 words
An original scanning apparatus according to claim 14, wherein said side reflector means has a variable reflection area varied in accordance with a distance from said elongated light source means.
Claim 27
Dependent Claim
34 words
An original scanning apparatus according to claim 14, wherein said side reflector means has a reflection surface an angle of which is varied in accordance with a distance from said elongated light source means.
Claim 28
Dependent Claim
20 words
An original scanning apparatus according to claim 14, wherein said side reflector means comprises a Fresnel mirror of reflection type.
Claim 29
Dependent Claim
43 words
An original scanning apparatus according to claim 14, wherein a distance between said side reflector means and the outermost luminous body disposed at said longitudinal end of said elongated light source means is a half of a distance between the adjacent luminous bodies.
Claim 30
Dependent Claim
18 words
An original scanning apparatus according to claim 14, wherein said elongated light source means comprises a halogen lamp.
Claim 31
Dependent Claim
22 words
An original scanning apparatus according to claim 14, wherein said movable reflection means has a plurality of reflection portions which are divided.
Claim 32
Dependent Claim
138 words
An original scanning apparatus, comprising: original support means on which an original is rested; elongated light source means comprised of a plurality of luminous bodies arranged in a line; reflection means fixedly provided for reflecting light from said elongated light source; movable reflection means for reflecting the light reflected by said fixedly provided reflection means toward said original support means; a pair of side reflection means disposed at both longitudinal ends of said elongated light source means and extending along a shifting direction of said movable reflection means; said elongated light source means being fixedly provided and said reflection means being shiftably provided, so that the original rested on said original support means is scanned by shifting said movable reflection means; said fixed reflection means having a cylindrical surface for collecting the light from said elongated light source.
Claim 33
Dependent Claim
138 words
An original scanning apparatus, comprising: original support means on which an original is rested; elongated light source means comprised of a plurality of luminous bodies arranged in a line; reflection means fixedly provided for reflecting light from said elongated light source; movable reflection means for reflecting the light reflected by said fixedly provided reflection means toward said original support means; a pair of side reflection means disposed at both longitudinal ends of said elongated light source means and extending along a shifting direction of said movable reflection means; said elongated light source means being fixedly provided and said reflection means being shiftably provided, so that the original rested on said original support means is scanned by shifting said movable reflection means; said fixed reflection means having a cylindrical surface for collecting the light from said elongated light source.
Claim 34
Dependent Claim
22 words
An original scanning apparatus according to claim 27, wherein said cylindrical surface of said fixedly provided reflection means has an elliptical configuration.
Claim 35
Dependent Claim
22 words
An original scanning apparatus according to claim 27, wherein said cylindrical surface of said fixedly provided reflection means has a parabolic configuration.
Claim 36
Dependent Claim
48 words
An original scanning apparatus according to claim 27, wherein a width in an upper-lower direction of said side reflection means is selected to be larger than a width in an upper-lower direction of said movable reflection means, and said side reflection means extend proximate to said original platen.
Claim 37
Dependent Claim
55 words
An original scanning apparatus according to claim 27, wherein a length of said side reflection means in the scanning direction extends from the position of said elongated light source located at a scan side of said movable reflection means where the scanning starts to the position of said movable reflection means where the scanning finishes.
Claim 38
Dependent Claim
21 words
An original scanning apparatus according to claim 27, wherein said fixedly provided reflection means is disposed above said elongated light source.
Claim 39
Dependent Claim
23 words
An original scanning apparatus according to claim 27, wherein said fixedly provided reflection means has a plurality of reflection portions which are divided.
Claim 40
Dependent Claim
22 words
An original scanning apparatus according to claim 27, wherein said movable reflection means has a plurality of reflection portions which are divided.
Claim 41
Dependent Claim
54 words
An original scanning apparatus according to claim 34, wherein said plural reflection portions of said movable reflection means are located at both sides of a position of the original to be illuminated, so that the light reflected at said reflection portions illuminates the illuminated position of original from both sides by a same rate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-02-14 | 1997-08-16 | 1998-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-14 | 2001-08-16 | 2002-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-14 | 2005-08-16 | 2006-02-15 | $7700.00 | Window Closed / Lapsed |