Uneven-surface data detection apparatus
First Claim
1. An uneven-surface data detection apparatus for detecting an uneven-surface having projection portions and recess portions, comprising:
- a transparent plate having upper and lower surfaces and having an uneven-surface contact portion against which an uneven-surface to be detected is pressed;
a light source for illuminating the entire area of said uneven-surface contact portion through said transparent plate;
an uneven-surface image drawing out optical element for drawing out the light reflected on said uneven-surface contact portion of said transparent plate; and
a detector for detecting the light drawn out from said transparent plate by said optical element, light reflected by the projection portions of said uneven-surface on said uneven-surface contact portion diverges from a propagation direction of light reflected by the recess portions of said uneven-surface on said uneven-surface contact portion, and said optical element is arranged to guide the light reflected by said projection portions into said detector, said light source simultaneously illuminating said projection portions and recess portions over said uneven-surface contact portion and the light reflected by said projection portions being totally reflected at least one time at a surface opposite the surface where the uneven-surface contact portion is located and then guided to said detector through said uneven-surface image drawing out optical element.
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Accused Products
Abstract
An uneven-surface data detection apparatus, includes a transparent plate having an uneven-surface contact portion against which an uneven surface to be detected is pressed. A light source illuminates the uneven-surface contact portion through the transparent plate. An uneven-surface image drawing out optical element draws out the light reflected on the uneven-surface contact portion of the transparent plate. A detector detects the light drawn out from the transparent plate by the optical element.
Light reflected by a projection-facing portion of the uneven surface contact portion to be introduced into the detector diverges from a propagation direction of light reflected by a recess-facing portion of the uneven surface contact portion. The optical element is arranged to guide the light reflected by the projection-facing portion into the detector.
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Citations
33 Claims
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1. An uneven-surface data detection apparatus for detecting an uneven-surface having projection portions and recess portions, comprising:
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a transparent plate having upper and lower surfaces and having an uneven-surface contact portion against which an uneven-surface to be detected is pressed; a light source for illuminating the entire area of said uneven-surface contact portion through said transparent plate; an uneven-surface image drawing out optical element for drawing out the light reflected on said uneven-surface contact portion of said transparent plate; and a detector for detecting the light drawn out from said transparent plate by said optical element, light reflected by the projection portions of said uneven-surface on said uneven-surface contact portion diverges from a propagation direction of light reflected by the recess portions of said uneven-surface on said uneven-surface contact portion, and said optical element is arranged to guide the light reflected by said projection portions into said detector, said light source simultaneously illuminating said projection portions and recess portions over said uneven-surface contact portion and the light reflected by said projection portions being totally reflected at least one time at a surface opposite the surface where the uneven-surface contact portion is located and then guided to said detector through said uneven-surface image drawing out optical element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A detector apparatus comprising:
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a transparent base having a contact portion; means, located adjacent to a first side surface of said transparent base, for illuminating said transparent base with light; means, formed adjacent to a second side surface of said transparent base opposite the first side surface, for guiding the light from said means for illuminating to said contact portion of said transparent base, the light beam being totally reflected from portions of said contact portion; means, located on a bottom surface of said transparent base and adjacent to the first surface side of said transparent base, for focusing the totally reflected light from said contact portion and for outputting the focused light; and detector means, located adjacent said focusing means, for receiving the focused light and detecting an object on said contact portion.
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21. A detection apparatus comprising:
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a transparent base having a contact portion formed on a top surface, said contact portion including projection portions; means, located adjacent a side surface of said transparent base, for illuminating said contact portion of said transparent base with light and totally reflecting the light from said projection portions of said contact portion; means, formed on said transparent base, for guiding the totally reflected light from said means for illuminating said contact portion of said transparent base; means, formed on said transparent base, for focusing the totally reflected light from said projection portions of said contact portion and for outputting the focused light; and detector means, located adjacent to said focusing means, for receiving the focused light and detecting an object on said contact portion. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. A bio-detection optical system comprising:
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a base having a contact portiin formed thereon; means, located on one side of the contact portion, for detecting light having a short wavelength and outputting an output voltage; and means, located on the other side of said contact portion and opposite said means for detecting light having a short wavelength, for detecting light having a long wavelength and outputting an output voltage. - View Dependent Claims (30, 31, 32, 33)
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Specification