摘要:
For each of a number of regions of a label surface of a substrate that are to be optically written to form a human-readable image, a corresponding power level at which an optical beam is to impinge the region to optically write a desired mark to the region as part of the image is determined. The optical beam impinges the region by being switched on and off from a higher power level to a lower power level to achieve the corresponding power level on average. At least one of the following are adjusted: a number of times the optical beam is switched on and off, a length of time the optical beam remains on each time it is switched on, and a duty cycle of the optical beam while the optical beam is positioned over the region.
摘要:
Embodiments include forming optically visible marks in a radiation-sensitive coating disposed on an optical disc using electromagnetic radiation having a first wavelength and bleaching a background of the radiation-sensitive coating using electromagnetic radiation having a second wavelength.
摘要:
An optical disc comprises a data layer defining a data side of the disc, the data layer being writable or readable with a data laser tuned to a first wavelength, and an imaging layer on the data side of the disc, the imaging layer comprising a colorformer and a developer.
摘要:
An optical data recording medium includes a substrate and a markable coating on the substrate. The markable coating includes a radiation absorber, a leuco dye, a developer and a deprotection agent.
摘要:
A radiation imageable coating includes a first thermochromic layer including a bleachable antenna dye and a second thermochromic layer including a non-bleachable antenna dye.
摘要:
A substrate has a first dye layer that locationally changes in color to a first color upon exposure to an optical beam at a first power level, and a second dye layer that locationally changes in color to a second color upon exposure to the optical beam at the second power level. The optical beam impinges a region of the substrate to render the region with a color selected from at least one of the first color and the second color. The optical beam impinges the region at a power level selected from at least the first power level and the second power level.
摘要:
Systems and method for optically recording data. One method comprises providing an optical recording medium comprising a substrate coated with a markable coating, said markable coating comprising a matrix and a color-forming agent comprising a leuco dye and developer, and using energy having a predetermined wavelength to form an optically detectable mark in the markable coating, the mark having a size less than 0.90 μm.
摘要:
An light activated imaging medium comprises a substrate and an imaging composition disposed on the substrate, the composition comprising a matrix and a color-forming agent within the matrix and an alloy of at least two leuco dyes, the leuco dyes having at least first and second melting points, respectively, and the alloy having a melting point between at least two of the melting points.