Image input device

• US 5,247,330 A
• Filed: 07/30/1991
• Issued: 09/21/1993
• Est. Priority Date: 08/02/1990
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Ohyama, Atsushi, Tanno, Koichi
• Primary Examiner(s): WINTERCORN, RICHARD
• Application Number:
  US07/738,154
• Time in Patent Office: 784 Days
• Field of Search: 355/21, 355/64, 355/67, 355/70, 355/75, 355/39
• US Class Current: 355/64
• CPC Class Codes: G03B 27/542 for copying cameras, reflex exposure lighting
• CPC Class Codes: G03B 27/6207 in copying cameras

Abstract

An image input device including an original pedestal for placing an original to be imaged, a camera unit for taking an image of the original, a camera supporting unit for supporting the camera unit at a predetermined position relative to the original pedestal, a light source for illuminating the original and a light source supporting unit for supporting the light source movable between a first position where the light source is used as a reflection illumination light source and a second position where the light source is used as a transmission light source. In addition, an image input device including an original pedestal for an original to be imaged, a camera unit for taking an image of the original, a support unit for supporting the camera unit at a predetermined position relative to the original pedestal and a housing unit for detachably housing a transmission illumination unit in the original pedestal.

Claims

1. An image input device with a pair of light sources for illuminating an original pedestal, wherein each of said light sources is adapted to be movable relative to said original pedestal and can be positioned at a first position where the light source is used as a reflection illumination light source and a second position where the light source is used as a transmission light source, wherein positions of the light sources relative to said pedestal are opposite to each other at said first position and said second position.

2. An image input device according to claim 1, further comprising a transmission illumination type original pedestal, wherein each said light source includes a fixing member for supporting said transmission illumination type original pedestal.

4. An image input device according to claim 2, wherein said transmission illumination type original pedestal is a diffusion reflection plate for uniformly transmitting light.

3. An image input device with a light source for illuminating an original pedestal, wherein said light source is adapted to be movable relative to said original pedestal and can be positioned at a first position where said light source is used as a reflection illumination light source and a second position where said light source is used as a transmission light source, a transmission illumination type original pedestal, and a housing for housing said transmission illumination type original pedestal.

5. An image input device comprising:

a) an original pedestal for mounting an original to be imaged;

b) a camera unit for taking an image of said original;

c) camera supporting means for supporting said camera unit at a predetermined position relative to said original pedestal;

d) light source means for illuminating said original; and

e) light source supporting means capable of supporting said light source means such that said light source means can be positioned at a first position where said light source means is positioned under said original pedestal and a second position where said light source is positioned above said original pedestal, wherein said light source engages with said pedestal so that said light source can be arranged at a desired position relative to said pedestal.

6. An image input device according to claim 5, wherein said original pedestal is a diffusion reflection plate capable of uniformly transmitting light.

7. An image input device comprising:

a) an original pedestal for mounting an original to be imaged;

b) image taking means for taking an image of said original; and

c) light source means capable of being used both as a transmission illumination light source and as a reflection illumination light source,

wherein said light source means functions as a part of said original pedestal.

8. An image input device according to claim 7, further comprising supporting means for supporting said light source means such that said light source means can be positioned at a first position for said reflection illumination light source and a second position for said transmission illumination light source.

9. An image input device according to claim 7 further comprising a transmission type original pedestal.

10. An image input device according to claim 9, wherein said light source is fixedly positioned near said original pedestal without being in contact with said original pedestal at said second position.

13. An image input device according to claim 9, wherein said transmission type original pedestal is a diffusion reflection plate for uniformly transmitting light.

11. An image input device comprising:

a) an original pedestal for mounting an original to be imaged;

b) image taking means for taking an image of said original;

c) light source means capable of being used both as a transmission illumination light source and as a reflection illumination light source; and

d) a transmission type original pedestal, said light source having a fixing member for fixing said transmission type original pedestal.

12. An image input device comprising:

a) an original pedestal for mounting an original to be imaged;

b) image taking means for taking an image of said original;

c) light source means capable of being used both as a transmission illumination light source and as a reflection illumination light source;

d) a transmission type original pedestal; and

e) a housing unit for housing said transmission type original pedestal.

14. An image input device comprising:

a) an original pedestal for mounting an original to be imaged;

b) a camera unit for taking an image of said original;

c) a support unit for supporting said camera unit at a predetermined position; and

d) a housing unit for detachably housing a transmission illumination unit in said original pedestal.

15. An image input device according to claim 14, wherein the upper surface of said original pedestal becomes flush with the upper surface of said transmission illumination unit when said transmission illumination unit is housed within said housing unit.

16. An image input device according to claim 14, wherein a power source terminal of said transmission illumination unit is mounted within said housing unit.

17. An image input device according to claim 14, wherein there is provided a lid for covering said housing unit when said transmission illumination unit is not used, and said cover covers said housing unit to allow said camera unit to take an image of said original.

18. An image input device according to claim 14, wherein said transmission illumination unit includes a transmission original pedestal and an illumination device fixed to said transmission original pedestal.