摘要:
In a wavelength converting element, an oscillation line at a predetermined wavelength is excited on the basis of excited light having a predetermined wavelength. Frequencies of the excited light and light on the oscillation line are mixed with each other in a nonlinear optical medium to generate light having a sum frequency. The wavelength converting element has resonators for the oscillation line and the excited light. A system for recording and reproducing optical information has a first light source capable of being directly modulated, and a second light source for emitting light having a wavelength shorter than that of a light beam emitted from the first light source. The first beam from the first light source is superposed on the short wavelength light from the second light source to record and reproduce the optical information. This system uses an overwrite recording system in which a writing operation of data is performed by emitting and superposing a modulated light beam from the first light source on the short wavelength light, and data indicative of value "0" are equivalently written to a memory medium by erasing data therefrom in this writing operation.
摘要:
A method of initializing a phase-change optical information recording medium is provided, using an optical system incorporating a semiconductor laser device. The laser device is characterized by a specified spatial power distribution. In a spatial distribution of the laser power focused on the recording medium, in the direction perpendicular to guide tracks the laser device preferably has less average smaller in both end regions of the spatial distribution, which have each 10% of the width at half maximum of the distribution, than the average in the center region of the full width at half maximum of the distribution.
摘要:
A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.
摘要:
A phase change optical information recording medium including: a substrate; and a recording layer which is located overlying the substrate and in which marks are to be formed to store information, wherein the substrate includes plural sessions including a first session in which pits are formed and which includes a RAM region including a groove and a wobble signal, and a program memory area in which pits are formed and which includes position information of the first session and does not include disc ID information of the phase change optical information recording medium.
摘要:
To provide a method of producing a film, comprising: ejecting a liquid B over a liquid surface of an active energy ray-curable liquid as a liquid A by an inkjet process, according to a predetermined periodic signal; and subsequently applying an active energy ray to the liquid A and the liquid B so as to perform curing and obtain a film which comprises a pattern according to any one of (1) to (4) below, (1) a smooth pattern having a periodic amplitude based upon a trigonometric function, (2) a pattern having a periodic depression, (3) a pattern in the form of a periodic flat surface, and (4) a pattern having a periodic semicylindrical shape.
摘要:
A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.
摘要:
A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.
摘要:
An optical recording medium which includes a PMA area, a TOC area, program area, an area that includes a user area and lead-out area. A portion of the PMA area, which relates to the program area, is in a recorded state and the TOC area is in an unrecorded state. Alternatively, the PMA may be in an unrecorded state. In addition, a password may be recorded in a portion of an information area. A method of erasing the medium and a system for reading and recording information are also provided.
摘要:
An image recording apparatus is provided containing: a recording medium conveying unit configured to convey a recording medium, a unit for adding a curable pre-treatment agent comprising a light curable non-colored material to the recording medium, at least one ink discharging unit configured to generate an image pattern by discharge of at least one inkjet ink, wherein the discharging is performed after the pre-treatment agent is charged to the recording medium, wherein the at least one inkjet ink comprises a light curable material and a colorant, and at least one light irradiation unit configured to irradiate the discharged inkjet ink to cure the at least one inkjet ink, without curing the pre-treatment agent, and after curing the at least one inkjet ink, the light irradiation unit cures the curable pre-treatment agent; and an image recording method using the same.
摘要:
An ink jet recording method including: applying at least two energy beam curable liquids different from each other in surface tension on a recording medium to form an energy beam curable liquid layer having a distribution pattern of different surface tensions; ejecting an energy beam curable ink on the energy beam curable liquid layer formed on the recording medium; and irradiating the energy beam curable liquid layer and the energy beam curable ink with energy beams to cure the energy beam curable liquid layer and the energy beam curable ink to form an image.