Scanning device
AssigneeLite-On Technology Corporation
InventorHsin-Tang Chien
Life of this patent
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Abstract
The present invention provides a scanning device including a lamp, an object, and a transparency (or a reflector). The present invention changes the optical path by varying the shape of tube wall of lamp, the transparency or the reflector to compensate the light in the boundary regions of the lamp. Moreover, the present invention is capable of reducing the dimension of the scanning device.
Claims5
A scanning device for scanning an object, comprising:
- a lamp for emitting a light beam onto said object;
- and
- a transparency, disposed between said lamp and said object, having a first surface and a second surface, said first surface receiving said light beam, said second surface comprising a plurality of refractors for refracting said light beam.
A scanning device for scanning an object, comprising:
- a lamp for emitting a light beam onto said object, said lamp being a tube of variable thickness comprising two ends and a central part, thickness at said two ends being larger than thickness at said central part for refracting said light beam.
A scanning device for scanning an object, comprising:
- a lamp for emitting a light beam onto said object, said lamp being a tube comprising a surface facing said object, said surface comprising a plurality of refractors for refracting said light beam.
A scanning device for scanning an object, comprising:
- a lamp for emitting a light beam onto said object;
- and
- a convex plate, disposed over said lamp, for reflecting said light beam onto said object.
A scanning device for scanning an object, comprising:
- a lamp for emitting a light beam onto said object;
- and
- a reflector, disposed over said lamp, having a surface facing said lamp, said surface comprising a plurality of reflection units for reflecting said light beam onto said object.
Dependencies are inferred from the claim text.