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US 12,197,995 B2Granted
High-speed reading by combining transmissive wide angle view with reflective focus view
AssigneeCeramic Data Solutions GmbH
InventorChristian Pflaum
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Abstract
The present invention relates to methods and devices for high-speed reading out information from an at least partially transparent data carrier.
Claims20
A method for high-speed reading out information from an at least partially transparent data carrier, the method comprising:
- illuminating the data carrier with an illuminating light from a first side through a first objective having a numerical aperture of at least 0.5;
- imaging the data carrier from the first side in a reflection mode through the first objective in order to generate focus view data, wherein imaging the data carrier in the reflection mode utilizes structured illumination microscopy (SIM) or saturated structured illumination microscopy (SSIM);
- imaging the data carrier from a second, opposite side in a transmission mode through a second objective having a numerical aperture of less than 0.3 in order to generate wide angle data;
- and
- combining the focus view data and the wide angle data in order to generate an image comprising a wide angle view of at least a section of the data carrier with a subsection of the image having a higher resolution than a rest of the image.
2 more elements
A device for high-speed reading out information from an at least partially transparent data carrier, the device comprising:
- a substrate holder for mounting the data carrier;
- a first objective having a numerical aperture of at least 0.5 on a first side of the substrate holder;
- a second objective having a numerical aperture of less than 0.3 on a second, opposite side of the substrate holder;
- a light source for illuminating the data carrier mounted on the substrate holder from the first side through the first objective;
- a spatial light modulator arranged between the light source and the first objective;
- a first image detector for imaging the data carrier from the first side in a reflection mode through the first objective in order to generate focus view data;
- a second image detector for imaging the data carrier from the second side in a transmission mode through the second objective in order to generate wide angle data;
- and
- a central processing unit adapted to combine the focus view data and the wide angle data received from the first and second image detectors in order to generate an image comprising a wide angle view of at least a section of the data carrier with a subsection of the image having a higher resolution than a rest of the image.
6 more elements
A method for high-speed reading out information from an at least partially transparent data carrier, the method comprising:
- illuminating the data carrier with an illuminating light from a first side through a first objective having a numerical aperture of at least 0.5, wherein the data carrier comprises a ceramic substrate and a ceramic coating layer, wherein a material of the ceramic substrate is different from a material of the coating layer, wherein the coating layer has a thickness no greater than 1 μm;
- imaging the data carrier from the first side in a reflection mode through the first objective in order to generate focus view data;
- imaging the data carrier from a second, opposite side in a transmission mode through a second objective having a numerical aperture of less than 0.3 in order to generate wide angle data;
- and
- combining the focus view data and the wide angle data in order to generate an image comprising a wide angle view of at least a section of the data carrier with a subsection of the image having a higher resolution than a rest of the image.
2 more elements
Dependencies are inferred from the claim text.