Abstract: In a voluntary-muscle strength measurement method and a muscular tonus state judgment method, the muscle strength of a voluntary muscle and the muscular tonus state can be measured accurately and objectively. The muscle strength of a voluntary muscle as the examiner pulls apart an O-ring shape formed with the thumb and another finger of subject's hand is measured with a first sensor placed at at least one point on the two fingers forming O-ring shape, and it is detected whether or not two fingers forming O-ring shape were pulled apart with a second sensor placed between two fingers forming O-ring shape, and the muscle strength at the time two fingers forming O-ring shape were pulled apart is measured by the detected outputs of the first and second sensors. Thereby, the O-ring test can be executed accurately and the muscle strength of a voluntary muscle can be measured with high reliability.

Abstract: In a voluntary-muscle strength measurement method and a muscular tonus state judgment method, the muscle strength of a voluntary muscle and the muscular tonus state can be measured accurately and objectively. The muscle strength of a voluntary muscle as the examiner pulls apart an O-ring shape formed with the thumb and another finger of subject's hand is measured with a first sensor placed at at least one point on the two fingers forming O-ring shape, and it is detected whether or not two fingers forming O-ring shape were pulled apart with a second sensor placed between two fingers forming O-ring shape, and the muscle strength at the time two fingers forming O-ring shape were pulled apart is measured by the detected outputs of the first and second sensors. Thereby, the O-ring test can be executed accurately and the muscle strength of a voluntary muscle can be measured with high reliability.

Abstract: A jumbo-size picture display device arranged such that a number of red, green and blue fluorescent trios are formed in an X-Y matrix form. A shading material for controlling the color temperature is formed above predetermined red, green and blue fluorescent segments, whereby the color temperature can be corrected in a simple manner. The quality of the jumbo-size picture display device is improved and the manufacturing costs are reduced.

Abstract: The present invention relates to a fluorescent display apparatus of high brightness illumination which is applied to a display apparatus of large picture screen or the like. The display apparatus of the present invention is comprised of a plurality of segments (13) to which a high voltage is applied, a cathode (K), a plurality of control electrodes (G2) disposed in correspondence with each of the respective segments (13) and a common electron beam deriving means (G1) disposed between the cathode (K) and the control electrodes (G2) in correspondence with the plurality of segments (13R), (13G) and (13B), whereby the segements (13) are selectively illuminated by controlling the voltages of each of the control electrodes (G2). Thus, these electrodes can all be shaped as flat plates without causing a cross-talk and the structure of the display apparatus can be simplified.

Abstract: Described is a beam index type color cathode ray tube in which at least one of tricolor phosphor stripes, that is the red, blue and green stripes, is different in width from the other color phosphor stripes, and m index stripes are associated with n sets or triplets of the color phosphor stripes. The widthwise center-to-center distance between the adjoining color phosphor stripes is set to a constant value. Each index stripe is of a width lesser than the width of the guard band provided between adjoining ones of the color phosphor stripes, and is provided at the widthwise center of the associated guard band. The arrangement provides index signals of sufficient intensity, while assuring a positive color switching.

Abstract: The present invention relates to a video projector type television receiver in which a prism plate is disposed in front of a color cathode ray tube, a projection lens is located in front of the prism plate and transparent liquid is injected into the space between the color cathode ray tube and the prism plate and the space between the prism plate and the projection lens. So, according to the present invention, since a difference between the refractive indexes of the transparent liquid and each component is not so large as that between the refractive indexes of the air and each component, it is possible to reduce a reflection on each boundary surface and also it is possible to prevent a multiple reflection image from being caused and a light amount from being lost greatly. Furthermore, owing to the liquid cooling effect of the transparent liquid, it is possible to suppress the thermal expansion of each portion so that the resultant influence such as the change of optical path and so on can be reduced.