摘要:
For a lighting device for obtaining output light in the wavelengths of light of three colors of red, green, and blue, a lighting device using a semiconductor laser for the blue light has been proposed. When using this lighting device in an image display device, etc., there are problems in blue color rendering properties and reduced image quality due to speckle noise. A light source device designed to emit red light, green light, a first blue light, and a second blue light, the light source device including: a red solid-state light source; a green solid-state light source; a semiconductor laser for emitting the first blue light; and a blue light generation part for emitting the second blue light, wherein the main component of the second blue light is light in a wavelength range of wavelengths longer than that of the first blue light.
摘要:
To provide a liquid crystal device with a high contrast ratio without deteriorating the aperture ratios of the respective pixels by reducing inferior alignment in liquid crystal, which is caused by alignment films, a liquid crystal device includes an element substrate having active elements and pixel electrodes, a counter substrate arranged to face the element substrate and having counter electrodes that face the pixel electrodes, and a liquid crystal layer arranged between the element substrate and the counter substrate. On the internal surfaces of the element substrate and the counter substrate, the alignment films are made of column-shaped inorganic material structures inclined in a predetermined direction with respect to the surface of the substrates are provided. The liquid crystal is made of liquid crystal molecules having positive dielectric anisotropy. The pre-tilt angle θ1 of the liquid crystal molecules on the alignment film of the element substrate is no less than 10° and no more than 45° and the pre-tilt angle θ2 of the liquid crystal molecules on the alignment film of the counter substrate is no less than 0° and no more than 10°.
摘要:
An induction heating roller apparatus has a heating roller for generating heat with an induction current by being magnetically coupled to an induction coil, and a plurality of induction coils placed in a dispersed state in an axial direction inside the heating roller and also set such that adjacent heating rollers are in mutually reversed winding directions so that generated flux has the same polarity. A high frequency power supply is provided for supplying high frequency power to the plurality of induction coils.
摘要:
Exemplary embodiments of the invention provide a liquid crystal device including a metal light-shielding film having a structure capable of reducing or preventing light leakage caused by disclination generated at corners of a pixel region and of suppressing diffraction light caused by a knife edge. The liquid crystal device of exemplary embodiments of the present invention is provided with a first light-shielding film extending substantially in the direction parallel to a polarizing axis of incident light and in the direction perpendicular thereto. The clear viewing direction of liquid crystal obliquely intersects sides of a square-shaped pixel region, and at one of four corners of the pixel region that is located at the side opposite to the clear viewing direction, the edge of a pattern of the first light-shielding film is composed of a portion extending substantially in the direction parallel to the polarizing axis of the incident light and a portion extending substantially in the direction perpendicular thereto. At the other three corners, the edge of the pattern of the first light-shielding film obliquely intersects the polarizing axis of the incident light.
摘要:
To provide a liquid crystal device with a high contrast ratio without deteriorating the aperture ratios of the respective pixels by reducing inferior alignment in liquid crystal, which is caused by alignment films, a liquid crystal device includes an element substrate having active elements and pixel electrodes, a counter substrate arranged to face the element substrate and having counter electrodes that face the pixel electrodes, and a liquid crystal layer arranged between the element substrate and the counter substrate. On the internal surfaces of the element substrate and the counter substrate, the alignment films are made of column-shaped inorganic material structures inclined in a predetermined direction with respect to the surface of the substrates are provided. The liquid crystal is made of liquid crystal molecules having positive dielectric anisotropy. The pre-tilt angle θ1 of the liquid crystal molecules on the alignment film of the element substrate is no less than 10° and no more than 45° and the pre-tilt angle θ2 of the liquid crystal molecules on the alignment film of the counter substrate is no less than 0° and no more than 10°.
摘要:
To provide an illumination optical apparatus comprising a plurality of illuminants, first condensing means for condensing the lights emitted from the illuminants, light synthesizing means for synthesizing the lights condensed by the first condensing means and emitting the synthesizing light in a predetermined direction, second condensing means into which the light emitted from the light synthesizing means comes to emit substantially parallel light, a first lens array constituted with a plurality of lenses to divide the light supplied from the second condensing means into a plurality of luminous fluxes, and a second lens array constituted with a plurality of lenses and into which the light supplied from the first lens array comes.
摘要:
A method of driving a liquid crystal that has a memory capability, wherein a reset voltage is initially applied to the liquid crystal during a reset period, to bring about a Freédericksz transition in the liquid crystal. During a subsequent selection period, a selection voltage that is selected on the basis of a critical value that brings about one of two metastable states in the liquid crystal is applied to the liquid crystal, and, during a non-selection period that follows the selection period, a non-selection voltage that is less than or equal to a threshold value that maintains two metastable states is applied to the liquid crystal. A delay period is provided between the reset period and the selection period, in order to gain effective timing for applying the selection voltage to the liquid crystal after the application of the reset voltage has been turned off. This shortens the length of the selection period, and hence the write time.
摘要:
A method of driving a liquid crystal that has a memory capability, wherein a reset voltage is initially applied to the liquid crystal during a reset period, to bring about a Frederick's transition in the liquid crystal. During a subsequent selection period, a selection voltage that is selected on the basis of a critical value that brings about one of two metastable states in the liquid crystal is applied to the liquid crystal, and, during a nonselection period that follows the selection period, a nonselection voltage that is less than or equal to a threshold value that maintains two metastable states is applied to the liquid crystal. A delay period is provided between the reset period and the selection period, in order to gain effective timing for applying the selection voltage to the liquid crystal after the application of the reset voltage has been turned off. This shortens the length of the selection period, and hence the write time.
摘要:
A time-sharing addressing method for an antiferroelectric phase liquid crystal element that demonstrates tristable switching behavior, wherein the drive voltage waveform is made an alternating current and the time average value of the voltage, including the depolarization field due to spontaneous polarization of the liquid crystal, actually applied to the liquid crystal substance in one frame or two frames is made zero for the purpose of expanding the drive voltage margin and the operating temperature margin of the element, shortening the screen scanning time and preventing degradation of the electro-optical characteristic by suppressing polarization of the electric charge due to spontaneous polarization of the liquid crystal. Also, by providing the blanking period required for relaxation from a ferroelectric phase to an antiferroelectric phase in the non-selection period, the time required for screen scanning is shortened, and by changing the length of the blanking period according to the temperature dependence of the response-relaxation time, the operating temperature margin is expanded.
摘要:
A fiber comprising a vinyl alcohol units-containing polymer, said polymer being modified at the oxygen atoms of its alcoholic hydroxyl groups with a group represented by the following formula I ##STR1## wherein M represents a chelate-forming metal atom and R represents an alkyl group. The fiber has excellent resistance to hot water and wet heat and does not stick, adhere or shrink even when dyed at high temperatures or treated by steam ironing, thus proving to be of markedly high commercial value.