Image sensor unit, image reading device, and image forming device having rod-shaped light guide
AssigneeKonica Minolta, Inc.
InventorHiroshi Uga
Life of this patent
Estimating the term…
Abstract
An image sensor unit includes: a light source that illuminates a document; a rod-shaped light guide including a reflection surface that reflects light from the light source and an emission surface provided on a side opposite to the reflection surface that emits light reflected by the reflection surface to the document; a thermal conductor provided so as to cover the reflection surface of the light guide; an image forming element that forms an image of reflected light from the document on a photoelectric conversion element; a sensor substrate on which the photoelectric conversion element is mounted; and a frame including a locator for mounting the light guide.
Claims12
An image sensor unit comprising:
- a light source that illuminates a document;
- a rod-shaped light guide including a reflection surface that reflects light from the light source and an emission surface provided on a side opposite to the reflection surface that emits light reflected by the reflection surface to the document;
- a thermal conductor having an outer surface that covers the reflection surface of the light guide;
- an image forming element that forms an image of reflected light from the document on a photoelectric conversion element;
- a sensor substrate on which the photoelectric conversion element is mounted;
- and
- a frame including a locator for mounting the light guide.
An image reading device comprising:
- an image sensor unit that reads a document,
- the image sensor unit including:
- a light source that illuminates a document;
- a rod-shaped light guide including a reflection surface that reflects light from the light source and an emission surface provided on a side opposite to the reflection surface that emits light reflected by the reflection surface to the document;
- a thermal conductor having an outer surface that covers the reflection surface of the light guide;
- an image forming element that forms an image of reflected light from the document on a photoelectric conversion element;
- a sensor substrate on which the photoelectric conversion element is mounted;
- and
- a frame including a locator for mounting the light guide,
- the image reading device comprising:
- a controller that performs shading correction on image data of the document read by the image sensor unit.
An image forming device comprising:
- an image reading device including an image sensor unit that reads a document;
- and
- an image former that forms an image based on image data of a document read by the image reading device,
- wherein the image sensor unit includes:
- a light source that illuminates a document;
- a rod-shaped light guide including a reflection surface that reflects light from the light source and an emission surface provided on a side opposite to the reflection surface that emits light reflected by the reflection surface to the document;
- a thermal conductor having an outer surface that covers the reflection surface of the light guide;
- an image forming element that forms an image of reflected light from the document on a photoelectric conversion element;
- a sensor substrate on which the photoelectric conversion element is mounted;
- and
- a frame including a locator for mounting the light guide, and
- the image reading device includes:
- a controller that performs shading correction on the image data of the document read by the image sensor unit.
Dependencies are inferred from the claim text.