Light source mechanism for an imaging apparatus

a technology of light source mechanism and imaging apparatus, which is applied in the direction of lighting and heating apparatus, lighting device details, electric lighting, etc., can solve the problems of tube not being able unable to provide the light source, and unable to provide the required light source, etc., to achieve stable illumination, improve imaging quality, and low cost
USRE41876E1Inactive Publication Date: 2010-10-26INTELLECTUAL VENTURES I LLC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
INTELLECTUAL VENTURES I LLC
Publication Date
2010-10-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

A light source mechanism for an imaging apparatus comprises at least a point light source and a light shield. The point light source located at one end of the light shield is used for providing illumination to the imaging apparatus during a scanning process. The light shield is a hollow pipe structure and further includes a long slot lying along an axial longitudinal direction thereof for allowing lights to leave the light shield. An inner surface of the light shield is made as a diffusion surface for evenly diffusing lights inside the light shield, by which a homogeneous line light source for the scanning process is formed at the long slot of the light shield.
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Description

BACKGROUND OF THE INVENTION

[0001] (1) Field of the Invention

[0002] The invention relates to a light source mechanism for an imaging apparatus, and more particularly to a combination which integrate a point light source with a light shield for producing a line light source with enhanced homogeneous illumination.

[0003] (2) Description of the Prior Art

[0004] An imaging apparatus or a scanner is one of popular computer peripherals. In an imaging apparatus, an internal light source is used to generate an image from a document rested upon a document plate. The image is then forwarded through a plurality of lenses and experiencing a proper travel path to reach a CCD for being transformed into digital signals. The digital signals are then sent to a computer for further image processing.

[0005] Referring now to FIG. 1A and FIG. 1B, a perspective and a side views of a conventional light source mechanism are shown, respectively. The light source mechanism 1 mainly comprises a fluorescent tube 12 and...

Claims

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