Portable scanners capable of scanning both opaque and transparent materials
AssigneeSyscan, Inc.
InventorAlpha Hou
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Abstract
Scanners disclosed in the present invention uses a dual-illumination system comprising a front illumination source and a back illumination source. The front illumination source is controlled to illuminate a scanning object when the scanning object is opaque. The back illumination illuminates a scanning object when the scanning object is transparent. An optical system collects lights reflected from the opaque scanning object illuminate by the front illumination source or transmitted through the transparent scanning object illuminated by the back illumination source and focuses the lights upon an image sensor, thereby an image of either the opaque scanning object or the transparent scanning object can be obtained.
Claims20
A portable scanner for optically converting a scanning object to an image thereof, said scanner comprising:
- an image sensor;
- a front illumination source, said front illumination source providing front illumination to said scanning object when said scanning object is opaque;
- a back illumination source, said back illumination source providing back illumination to said scanning object when said scanning object is transparent;
- an optical lens system mounted in front of said image sensor;
- said scanning object provided in a same scanning passage, regardless of being opaque or transparent, in front of the optical lens;
- wherein said optical lens system collects reflected lights from said opaque scanning object and focuses said reflected lights onto said image sensor so that said image of said opaque scanning object is generated;
- and
- wherein said optical lens system collects transmitted lights from said transparent scanning object and focuses said transmitted lights onto said image sensor so that said image of said transparent scanning object is generated.
A portable scanner for optically converting a scanning object to an image thereof, said scanner comprising:
- an image sensing module statically integrated within said portable scanner;
- said image sensing module comprising an image sensor, an optical lens system and a front illumination source;
- a back illumination module;
- said back illumination module comprising a light source, said light source working conversely with said front illumination source in said image sensing module;
- said image sensing module and said back illumination module integrated in parallel and forming a scanning gap therebetween;
- and
- a motion mechanism rolling said scanning object through said scanning gap regardless said scanning object is opaque or transparent so that said scanning object can be completely scanned by said image sensor via said optical lens system in said image sensing.
A portable scanner for optically converting a scanning object to an image thereof, said scanner comprising:
- a portable case made of light and solid material;
- said case having an elongated receiving opening and an elongated exiting opening;
- an elongated contact image sensor statically integrated within said portable case and having an extended length to accommodate the width of said scanning object;
- said contact image sensor comprising an photodetector sensor, an optical lens system and an illumination source therein;
- an elongated back illumination module;
- said contact image sensor and said back illumination module housed in said portable case and positioned spaced apart to form a scanning passage gap to receive said scanning object regardless said scanning object is opaque or transparent;
- said passage gap communicating with both said receiving opening and said exiting opening;
- and
- a motion mechanism rolling said scanning object received in from said receiving opening and out of said exiting opening so that said photodetector sensor in said image sensor can image said scanning object via said optical lens system.
Dependencies are inferred from the claim text.