摘要:
There is provided a data playback method including: acquiring first image data by illuminating reference light for reading onto an optical recording medium on which a hologram has been recorded by Fourier transforming and simultaneously illuminating reference light and signal light expressing digital data as a light-and-dark image, and detecting an inverse Fourier-transform image of diffracted light which is diffracted by the recorded hologram; acquiring second image data, which is a reversal image of the first image data, by generating combined light by combining the diffracted light and a dc component whose phase is different than a phase of a dc component of the signal light included in the diffracted light, and detecting an inverse Fourier-transform image of the combined light; and computing a difference in luminance for each pixel of the light-and-dark image, by carrying out computing processing by using the first and second image data.
摘要:
There is proposed a hologram recording method that includes: generating signal light by superimposing a periodic intensity distribution or phase distribution on an intensity distribution of light that expresses binary digital data as a light/dark image; Fourier transforming the signal light; illuminating Fourier transformed signal light and reference light simultaneously on an optical recording medium; and recording the signal light as a hologram.
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:
A zinc oxide semiconductor material comprising at least zinc and oxygen as constituent elements, which can be deterred with respect to the deterioration of doping characteristic, luminous characteristic and the like, compared with a conventional c-axial oriented one by orienting the crystal orientation plane to a-axis of the wurtzite structure.
摘要:
An image reading apparatus includes a contact type image sensor device optically reading the document, a platen roller pushing the document against a surface of the image sensor, a flame supporting the contact type image sensor device. The flame has a mounting surface to which the contact type image sensor device is fixed and a side wall which rise from the mounting surface in the vicinity of the contact type image sensor device. A gap is formed between the contact type image sensor device and the side wall. The image apparatus also includes a filling agent filling the gap including substantially spherical particles having an anti-friction characteristic.
摘要:
An amorphous silicon photosensor comprising a substrate, a lower electrode formed on the substrate, an amorphous silicon photoelectric conversion layer formed on the lower electrode, and an upper electrode formed on the amorphous silicon photoelectric conversion layer, wherein the substrate is transparent to the incident light for photosensing, the lower electrode and the upper electrode comprises at least one of an electroconductive oxide or an electroconductive nitride, both of the electrodes for receiving the incident light for photosensing being transparent to the incident light, and the amorphous silicon photoelectric conversion layer comprises a plurality of amorphous silicon layers, and at least one of the amorphous silicon layers in contact with the electroconductive oxide or the electroconductive nitride comprises at least one of the same atoms as the constituent atoms of the electroconductive oxide or the electroconductive nitride.
摘要:
A plurality of recording electrodes are disposed in parallel form on an elastic metallic thin plate through an insulating layer, a protrusion made of a conductive material is formed in the proximity of the tip of each of recording electrodes, and notched grooves are formed between the recording electrodes to partition the recording electrodes.
摘要:
A display medium includes: a pair of substrates that have light transmittance; electrode members that are respectively formed on the opposing surfaces of the substrates, have light transmittance, and are capable of carrying an electric current; a display member that is interposed between the electrode members and displays display information when the electric current is supplied; a terminal portion provided at one electrode member; a reinforcing portion that has electrical conductivity and is joined to the terminal portion; and a mounted electrode that has electrical conductivity and is joined to the terminal portion by a joining material that has, after curing, a cohesive force larger than that of the reinforcing portion. The area of a reinforcing joining region of the terminal portion to which the reinforcing portion is joined is smaller than the area of a mounted joining region of the terminal portion to which the joining material is joined.
摘要:
An optical device for holographic recording or reading is provided and includes: a light emission unit that emits light to be irradiated on an optical recording medium, the light being recording or reading light; a first prism unit that moves in accordance with a moving speed of the optical recording medium and refracts the light to move the light irradiated on the optical recording medium over a distance in a moving direction of the optical recording medium so that the light is irradiated on substantially the same position on the optical recording medium for a period of time; and a second prism unit that moves in accordance with the moving speed of the first prism unit to compensate for an optical path length of the light.