摘要:
There is provided a hologram recording medium having: a recording layer at which a hologram can be recorded by illumination of writing light; and a protective layer provided on the recording layer in order to protect the recording layer, a water absorbency of the protective layer being less than or equal to 0.01%.
摘要:
A hologram recording apparatus includes a light source for irradiating coherent light, light separator for separating the coherent light into light for reference beam and light for signal beam, optical path changer for changing an optical path of each light separated by the light separator so that the reference beam and the signal beam may be irradiated simultaneously onto an optical recording medium, a spatial light modulator disposed in the optical path of the light for the signal beam for modulating the light for the signal beam in accordance with a supplied recording signal to create signal beam for recording a hologram, and diffused light irradiator for irradiating diffused light simultaneously with the reference beam at least onto an area of the optical recording medium where the reference beam is irradiated.
摘要:
A hologram-recording method including recording a reflection-type volume hologram onto an optical recording medium by irradiating the optical recording medium with a modulated beam obtained by spatially modulating a laser beam and a diffused beam obtained by diffusing the modulated beam, coaxially but from different sides of the optical recording medium, respectively. The invention provides a hologram-recording method, an optical recording medium, and a hologram-recording device that enables on-demand recording of a reflection-type volume hologram which reliably prohibits forgery or alteration with a simple device configuration.
摘要:
There is provided a hologram recording medium having: a recording layer at which a hologram can be recorded by illumination of writing light; and a protective layer provided on the recording layer in order to protect the recording layer, a water absorbency of the protective layer being less than or equal to 0.01%.
摘要:
A hologram-recording material, including a photoresponsive molecule, a reactive molecule having an intrinsic birefringence, and a photopolymerization initiator that accelerates polymerization and/or crosslinking of the reactive molecule having an intrinsic birefringence, a content of the photopolymerization initiator being in a range of less than about 0.1 wt % relative to the hologram-recording material, and, a content of the reactive molecule having an intrinsic birefringence being in a range of about 30 to about 80 wt % relative to the hologram-recording material.
摘要:
A hologram recording apparatus includes a light source for irradiating coherent light, light separator for separating the coherent light into light for reference beam and light for signal beam, optical path changer for changing an optical path of each light separated by the light separator so that the reference beam and the signal beam may be irradiated simultaneously onto an optical recording medium, a spatial light modulator disposed in the optical path of the light for the signal beam for modulating the light for the signal beam in accordance with a supplied recording signal to create signal beam for recording a hologram, and diffused light irradiator for irradiating diffused light simultaneously with the reference beam at least onto an area of the optical recording medium where the reference beam is irradiated.
摘要:
The present invention discloses a hologram-recording method, comprising recording a reflection-type volume hologram onto an optical recording medium by irradiating the optical recording medium with a modulated beam obtained by spatially modulating a laser beam and a diffused beam obtained by diffusing the modulated beam, coaxially but from different sides of the optical recording medium, respectively. The invention provides a hologram-recording method, an optical recording medium, and a hologram-recording device that enables on-demand recording of a reflection-type volume hologram which reliably prohibits forgery or alteration with a simple device configuration.
摘要:
A hologram recording material is used for recording information by at least irradiation with light. The hologram recording material includes photoresponsive molecules, liquid crystal molecules, and particles having an average particle diameter of one tenth or less of a wavelength of light used in the information recording.
摘要:
While Fourier transformation of a signal light beam is performed to perform recording during holographic recording so that a focal point is formed outside a holographic recording layer (defocus recording), an aperture is arranged on an outgoing side of the reproduced signal light beam (reproduction light beam), the reproduction light beam is focused at the aperture, and low-order components of a Fourier transform image of the reproduction light beam are selectively transmitted to detect only the transmitted light beam. Therefore, information recorded as the hologram in the holographic recording layer can be reproduced with high S/N ratio from the holographic recording layer added onto a support body, particularly onto a sheet member having non-optical quality such as paper and a plastic card.
摘要:
The present invention provides an image formation device including: an image reading section which reads an image from an image formation member, at which image formation member the image is formed and a hologram recording medium is mounted, associated information relating to the image being stored as a hologram in the hologram recording medium; an information acquisition section which acquires the stored associated information from the hologram recording medium; an image processing section which processes the image read by the image reading section in accordance with the associated information acquired by the information acquisition section; and an image formation section which forms an image processed by the image processing section.