摘要:
A hologram of a virtual object or an object which actually exists is formed and a solid image is displayed. 3-dimensional information of the object to be displayed is divided into regions in the depth direction. Depth images are formed as 2-dimensional images where are seen from a plurality of points which are obtained by finely dividing the hologram forming surface for every region. A phase distribution at the hologram forming surface is calculated from the depth images and displayed on a liquid crystal display or the like as an electronic hologram. A reference light is irradiated onto the display and is converted into an optical wave front, thereby displaying a solid image. When forming a hologram recording medium, a zone image corresponding to each of the finely divided exposure regions of a dry plate is exposed multiple times.
摘要:
A diffraction light modulated by a plane type phase distribution display device is deflected by an image formation optical system and is formed as an image onto a cylindrical screen surface and is diffused in the vertical direction by a unidirectional light diffusing section such as a lenticular lens or the like, so that a stereoscopic image can be seen. As a phase distribution display device, a liquid crystal device having pixels on the order of the wavelength in the circumferential direction and having coarse pixels in the radial direction is used. Thus, it is equivalent to that the phase distribution display device is located on the cylindrical surface. A cylindrical stereoscopic display can be performed by using the plane phase distribution display device.
摘要:
The invention provides an optical space switch device which provides variable interconnection of one- or two-dimensionally spatially multiplexed optical signals. The optical space switch device comprises a plurality of optical space switch stages stacked to form a multi-input multi-output optical space switch. Each of the optical space switch stages comprises a plurality of 2-input 2-output optical switches, each of which comprises a polarization control layer and an optical path shifting layer. The optical path shifting layer has a bypass mode in which it outputs beams of light along optical axes and an exchange mode in which it shifts beams of light by diffraction.
摘要:
A digital graphic equalizer for obtaining a boost characteristic and an attenuation characteristic using band pass filters, each constituted by a digital filter, and an adder. For a boost characteristic, an input signal is supplied to first band pass filters and resultant filtered signals and the input signal are added by a first adder. For an attenuation characteristic, the output signal of a second adder is fed back to second band pass filters and resultant filtered signals and the input signal are added by a second adder.
摘要:
The invention provides an optical space switch device which provides variable interconnection of one- or two-dimensionally spatially multiplexed optical signals. The optical space switch device comprises a plurality of optical space switch stages stacked to form a multi-input multi-output optical space switch. Each of the optical space switch stages comprises a plurality of 2-input 2-output optical switches, each of which comprises a polarization control layer and an optical path shifting layer. The optical path shifting layer has a bypass mode in which it outputs beams of light along optical axes and an exchange mode in which it shifts beams of light by diffraction.
摘要:
A polyarylene sulfide resin composition with an improved moldability and heat resistance is provided which comprises (a) 40 to 99% by weight of a polyarylene sulfide resin and (b) 1 to 60% by weight of a polyparabanic acid having the following recurring unit: ##STR1## wherein Z and Z.sup.1 are oxygen atoms or NH group, Z and Z.sup.1 being not simultaneously NH groups, and R is ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are hydrogen atoms or methyl groups, and X and X.sup.1 are bonds, CH.sub.2 groups, oxygen atoms, sulfur atoms, SO.sub.2 groups, CO groups or ##STR3##
摘要:
A novel styrene copolymer having a functional group, i.e. silyl group on the para-position of the aromatic ring, useful as a functional polymer, is provided. An effective process for the production thereof comprises contacting a random or block copolymer of p-methylstyrene and .alpha.-methylstyrene with an organolithium compound to lithiate partly the p-methyl group in the copolymer and then reacting the lithiated copolymer with a silicon compound represented by the general formula (R.sup.1)(R.sup.2)(R.sup.3)SiX wherein R.sup.1, R.sup.2 and R.sup.3 are, same or different, alkyl groups with 1 to 6 carbon atoms or alkenyl groups with 2 to 6 carbon atoms, at least one of R.sup.1, R.sup.2 and R.sup.3 being an alkenyl group, and X is a halogen atom.
摘要:
An automatic sound field correcting system with graphic equalizer means to be provided in an audio signal supply line. A test signal such as a pink noise is radiated in the listening space and detected at a predetermined listening point to determine the detection frequency characteristic of the test signal, thereby to adjust the frequency characteristic of the graphic equalizer means. Thereafter, the frequency characteristic of the graphic equalized means is made equal to different band-pass filter characteristics, one after another, and each time the equalization is effected, the detected test signal is obtained through the grapic equalizer means for determination of the detected frequency characteristic of the test signal.
摘要:
The present invention relates to novel quinazolinone derivatives and pharmaceutically acceptable salts thereof. More particularly, it relates to novel quinazolinone derivatives and pharmaceutically acceptable salts thereof which have antiallergic activities, to processes for the preparation thereof, to pharmaceutical composition comprising the same, and to a method of using the same therapeutically in the treatment of allergic symptoms in human being and animals.
摘要:
New fused imidazole compounds of the formula: ##STR1## wherein A is lower alkylene,R.sup.1 is hydrogen, lower alkyl, lower alkoxy or halogen,R.sup.2 is hydrogen, lower alkyl, cyclo(lower)alkyl, pyridyl, ar(lower)alkyl which may be substituted with halogen, or aryl which may be substituted with lower alkyl, lower alkoxy, hydroxy or halogen,R.sup.3 is N-containing unsaturated heterocyclic group which may be substituted with lower alkyl or amino, andY is .dbd.C-- or .dbd.N--,and pharmaceutically acceptable salts thereof, and processes for preparation thereof and pharmaceutical composition comprising the same.These derivatives and salts thereof are useful as antiulcer agents.
摘要翻译:其中A为低级亚烷基,R 1为氢,低级烷基,低级烷氧基或卤素,R 2为氢,低级烷基,环(低级)烷基,吡啶基,Ar(低级)烷基, 可以被卤素取代,或可以被低级烷基,低级烷氧基,羟基或卤素取代的芳基,R3是可被低级烷基或氨基取代的含N不饱和杂环基,Y是=或= N - 及其药学上可接受的盐,及其制备方法和包含其的药物组合物。 这些衍生物和其盐可用作抗溃疡剂。