Abstract: A display apparatus has a picture displaying portion and a temperature providing portion. The temperature providing portion generates heat. The picture displaying portion displays a picture based on a video signal generated by a picture information generating portion.

Abstract: An image display apparatus is provided with a screen having retro-reflectivity, a liquid crystal display device displaying an image, a projection optical system projecting the light of the liquid crystal display device onto the screen, and a beam magnifier located close to the screen and magnifying the light beams, included in the projected light, expressing individual points of the image. The beam magnifier is composed of a diffraction optical element or a diffusing plate, and magnifies each light beam so that the magnification is larger in the direction of the horizontal field of view than in the direction of the vertical field of view. When images having parallax are provided for the left and right eyes, an upper limit of the magnification of the light beams is set in consideration of the distance between the left and right eyes to prevent cross-talk.

Abstract: A tire air-pressure abnormality alarming device for informing decrease in air-pressure of tires attached to a four-wheeled vehicle, characterized in that the device prohibits start of initializing operations for updating stored values for physical amounts related to tires or wheels in the case where air-pressures of the tires are judged to be normal, if air-pressure abnormality of a tire is being alarmed. Initialization is accepted only after the internal pressure has become normal, whereby erroneous initialization with any tire being in a decompressed condition can be prevented. Thus, normal operations for detecting decompression of a tire can be maintained.

Abstract: A method of observing a physical and chemical property of a tissue or cell by using an apparatus which comprises at least a cell culturing means, an environment conditioning means, an observing means and a comparing means, comprising the steps of (A) culturing the tissue or cell by the cell culturing means, (B) maintaining a first physical and chemical environment around the tissue or cell by the cell culturing means, (C) observing a first physical and chemical property of the tissue or cell in the first physical and chemical environment by the observing means, (D) changing the first physical and chemical environment to a second physical and chemical environment by the environment conditioning means, (E) observing a second physical and chemical property of the tissue or cell in the second physical and chemical environment by the observing means, and (F) comparing the first physical and chemical property of the tissue or cell with the second physical and chemical property of the tissue or cell by the comparing

Abstract: An optical deflection device for deflecting light by a mirror mounted on the tip of a rod-like torsion spring which oscillates at near resonance frequency. An optical deflection device which produces a large amplitude by exerting control to avoid variation in the natural oscillation frequency of the torsion spring (including mirror) regardless of temperature fluctuation.

Abstract: An object of the present invention is to provide a chemical decontamination liquid decomposing system having a catalyst tower which has a mesh filter capable of certainly preventing catalyst from flowing out and a mechanism of pushing-down the catalyst capable of preventing convection of the catalyst caused by decomposition gas.

Abstract: A color correcting apparatus corrects color data according to second ambient light so that an output device outputting a color based on the color data calibrated in first specified ambient light can output almost the same color in the second light. The apparatus comprises a storing section used to store several main component data each representing a different component of light, which are combined to reproduce the second light, an input section used to input several weighing coefficients to assign weight to each of the several pieces of component data when they are combined and a correcting section used to correct color data based on correction parameters obtained using the several pieces of component data stored in the storing section and using the several weighing coefficients input through the input section.

Abstract: A process for filling N2 gas into a tire assembled onto a rim to hold a recommended internal pressure comprises discharging air inside the tire prior to the filling of N2 gas to render the inside of the tire into a state lower than atmospheric pressure and filling N2 gas into such a tire. An apparatus for carrying out the above process comprises a single inlet path, at least two outlet paths and a membrane module for separating air introduced through the inlet path into O2 gas and N2 gas and feeding these gases into respective outlet paths, wherein an outlet path for feeding N2 gas in the outlet paths is connected at its top to a valve for inflating a tire assembled onto a rim under an internal pressure and a discharge path for discharging air inside the tire prior to the filling of N2 gas is provided on the way of such an outlet path.

Abstract: The present invention is directed to an unpaved road detection system wherein a slip rate is calculated on the basis of wheel speeds detected by wheel speed sensors and a vehicle speed detected by a vehicle speed detection device. A linear acceleration sensor is provided for detecting an acceleration of the vehicle in a longitudinal direction thereof to produce a signal linearly proportional to the detected acceleration. A variation of the signal produced by the linear acceleration sensor corresponding to the variation of the slip rate is calculated. The variation of the signal is compared with a reference value. If the variation exceeds the reference value, it is determined that the vehicle is traveling on an unpaved road.

Abstract: An image display apparatus has a signal input portion for receiving an image signal, an image compensator for electrically compensating the image signal for distortion so that a left and a right image displayed in an observer's left and right eyes have identical distortion and then outputting a left and right image signal that correspond to the left and right images, a signal switcher for switching between the left and right image signals output from the image compensator so as to output the left and right images alternately chronologically, a single two-dimensional image display device for displaying a two-dimensional image in accordance with the image signal output from the signal switcher, a pair of left and right eyepiece optical systems for directing image light exiting from the two-dimensional image display device to the observer's left and right eyes so that the two-dimensional image is displayed as a virtual image in the observer's eyes, and an optical path switcher for time-divisionally switching opt

Abstract: A drum device is provided that functions as a very stable leading-trailing (LT) type when the service brake is applied, and as a highly effective duo-servo (DS) type with very little fluctuation in stroke when the parking brake is applied, in which strange noises are not generated, and any impact load is not applied to any of the components, thus enabling a lighter device. A shoe clearance adjustment device (12), adjacent to a service brake actuator (8) is suspended between the two brake shoes (2, 3). A parking brake actuator (18) is adjacent to an anchor (9). The middle segment of a long link (11) is pivotable in the middle of the one brake shoe (2). The ends of the link are functionally engaged with the shoe clearance adjustment device (12) and the parking brake actuator (18), respectively. The parking brake actuator (18) is equipped with a stroke adjustment device.

Abstract: A process for filling N2 gas into a tire assembled onto a rim to hold a recommended internal pressure comprises discharging air inside the tire prior to the filling of N2 gas to render the inside of the tire into a state lower than atmospheric pressure and filling N2 gas into such a tire. An apparatus for carrying out the above process comprises a single inlet path, at least two outlet paths and a membrane module for separating air introduced through the inlet path into O2 gas and N2 gas and feeding these gases into respective outlet paths, wherein an outlet path for feeding N2 gas in the outlet paths is connected at its top to a valve for inflating a tire assembled onto a rim under an internal pressure and a discharge path for discharging air inside the tire prior to the filling of N2 gas is provided on the way of such an outlet path.

Abstract: A drum brake device is provided which facilitates the pre-mounting of a long link, without increasing the number of components or the cost of the device. The long link (44) is pivotable on the central segment of one brake shoe (13). An engagement hook (48) protrudes from one or the other of the long link (44) or the one brake shoe (13). A notched groove (25) is formed in the other component thereof. The engagement hook (48) is inserted into the notched groove (25). The rotation of the long link (44) relative to the one brake shoe (13) will cause the long link (44) and one brake shoe (13) to be superimposable and detachable.

Abstract: The object is to provide an image viewing system that allows easy image viewing with reduced eyestrain, whether for wide-angle or enlarged viewing. The rotation of the viewer's head is detected by means of piezo-electric vibration gyroscopes 405 and 406, and the coefficient for setting the amount of change in the camera system's image shooting direction with reference to the detected direction is changed in accordance with the focal length of the camera system's zoom lens systems. Moreover, the amount of change in the image shooting direction may be changed manually by means of sensitivity setting lever 213 mounted on HMD 2.

Abstract: A scanning-type image viewing optical system has a light source for emitting luminous flux; a main scanning means for scanning luminous flux in a first direction; a sub-scanning means for scanning luminous flux in a second direction different from the first direction; and an eyepiece lens for directing luminous flux scanned by the two scanning means to the pupil of an observer, wherein the main scanning means has a conjugate relationship with the pupil position of the observer via the eyepiece lens, and when the pupil diameter, i.e., the luminous flux diameter of the incident luminous flux at the pupil position of the observer, is designated d and the main scan diameter, i.e., the luminous flux diameter exiting the main scanning means, is designated d', the conjugate magnification .beta. calculated by d/d' satisfies the conditional equation .beta..ltoreq.0.85.

Abstract: A scanning-type image viewing optical system has a light source for emitting luminous flux; a main scanning means for scanning luminous flux in a first direction; a sub-scanning means for scanning luminous flux in a second direction different from the first direction; and an eyepiece lens for directing luminous flux scanned by the two scanning means to the pupil of an observer, wherein the main scanning means has a conjugate relationship with the pupil position of the observer via the eyepiece lens, and when the pupil diameter, i.e., the luminous flux diameter of the incident luminous flux at the pupil position of the observer, is designated d and the main scan diameter, i.e., the luminous flux diameter exiting the main scanning means, is designated d', the conjugate magnification .beta. calculated by d/d' satisfies the conditional equation 1.2.ltoreq..beta..

Abstract: A drum brake device is provided that functions as a very stable leading-trailing (LT) type when the service brake is applied, and as a highly effective duo-servo (DS) type with very little fluctuation in stroke when the parking brake is applied, in which strange noises are not generated, and any impact load is not applied to any of the components, thus enabling a lighter device. A shoe clearance adjustment device (12), adjacent to a service brake actuator (8) is suspended between the two brake shoes (2, 3). A parking brake actuator (18) is adjacent to an anchor (9). The middle segment of a long link (11) is pivotable in the middle of the one brake shoe (2). The ends of the link are functionally engaged with the shoe clearance adjustment device (12) and the parking brake actuator (18), respectively. The parking brake actuator (18) is equipped with a stroke adjustment device.

Abstract: A drum brake device is provided which facilitates the pre-mounting of a long link, without increasing the number of components or the cost of the device. The long link (44) is pivotable on the central segment of one brake shoe (13). An engagement hook (48) protrudes from one or the other of the long link (44) or the one brake shoe (13). A notched groove (25) is formed in the other component thereof. The engagement hook (48) is inserted into the notched groove (25). The rotation of the long link (44) relative to the one brake shoe (13) will cause the long link (44) and one brake shoe (13) to be superimposable and detachable.

Abstract: A drum brake device that functions as a leading-trailing (LT) type when the service brake is applied, and as a duo-servo (DS) type when the parking brake is applied, in which no strange noises are generated, nor is any impact load applied to any of the components, thus enabling a lighter device. The middle segment of a long link 11is pivotable in the middle of the one brake shoe 2. A shoe clearance adjustment device 12 is provided adjacent to a service brake actuator 8 between the other brake shoe 3 and the one end of the long link 11. A parking brake actuator 16 is provided adjacent to an anchor 9 and between the other brake shoe 3 and the other end of the long link 11. The force urging the second adjacent ends of the brake shoes toward each other, is greater than the force urging the first adjacent ends of the brake shoes toward each other.

Abstract: A display device provides a virtual image for eyes of an observer. The display has a light source which emits light based on an image signal, scanner which scans the light, an eyepiece optical system which projects the scanned light onto an eye of the observer as a virtual image, detector which detects a pupil size of the observer, and regulator means which regulates a quantity of light projected onto the eye of the observer based on the detected pupil size.