Light-channeling apparatus
AssigneeTranspacific IP, Ltd.
InventorJen-Shou Tseng
Life of this patent
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Abstract
A light-channeling apparatus for a scanning module is provided. The scanning module uses a first light-guiding tube to channel light from a light source to a scanning region and uses a second light-guiding tube to channel light reflected from the scanning region to a light passage slit on the body casing of the scanning module. As a result, very little light from the light source is dispersed and external light is kept out from the transmission pathway.
Claims22
A light-channeling apparatus for a scanning module having a light source and a body casing, wherein the body casing has a light passage slit, the light-channeling apparatus comprising:
- a first light-guiding tube attached to the body casing, wherein the first light-guiding tube is positioned between the light source and a document;
- and
- a second light-guiding tube attached to the body casing, wherein the second light-guiding tube is positioned between the document and the light passage slit.
A scanning module for scanning a document, comprising:
- a body casing having a light passage slit thereon;
- a light source attached to the body casing;
- a plurality of reflecting mirrors inside the body casing;
- a lens inside the body casing;
- a light-sensing device inside the body casing;
- and
- a light-channeling apparatus joined to the body casing, wherein the light-channeling apparatus includes a first light-guiding tube and a second light-guiding tube such that the first light-guiding tube is positioned between the light source and the document and the second light-guiding tube is positioned between the document and the light passage slit.
Dependencies are inferred from the claim text.