Abstract:
To provide: a water-discoloring drawing toy which, when a writing utensil or applicator for water adhesion is applied thereto, produces a multicolor image and which eliminates the monotonous production of monochromatic images in a related-art technique and is rich in unexpectedness and changes; and a water-discoloring drawing toy set including this drawing toy. A water-discoloring drawing toy 1 having such a constitution that a drawing made by applying a writing utensil or applicator for water adhesion produces a multicolor image, the drawing toy comprising: a substrate; many non-discoloring images differing in color tone and adjoining each other disposed on the substrate so that at least two color tones per 100 cm2 can be visually recognized in the part having the non-discoloring images; and a porous layer for preventing the non-discoloring images from being seen in the ordinary state, the porous layer being disposed over the non-discoloring images and comprising a binder resin and a low-refractive-index pigment fixed therein in a dispersed state, the porous layer having a difference in transparency between a liquid-impregnated state and an unimpregnated state. Also provided is a water-discoloring drawing toy set which comprises the water-discoloring drawing toy 1 and a writing utensil 3 or applicator for water adhesion.
Abstract:
A writing instrument for a water-metachromatic member has a cylindrical container capable of holding water, formed with an opening at a tip end thereof to communicate the interior of the container with the exterior thereof, a hollow cylindrical holder which directly holds a pen point member, being formed at a tip end with an opening through which the tip end of said pen point member is projected outwardly and at a rear end with a communication hole, and a gap provided between an inner peripheral surface of the cylindrical holder and an outer peripheral surface of the rod-like body to form a gap for generating a capillary force therebetween. When the holder is held to the container, water is supplied through said communication hole to said pen point member. When the holder is detached from the container, the opening of the container is usable for water supply.
Abstract:
A writing instrument for a water-metachromatic member has a cylindrical container capable of holding water, formed with an opening at a tip end thereof to communicate the interior of the container with the exterior thereof, a hollow cylindrical holder which directly holds a pen point member, being formed at a tip end with an opening through which the tip end of said pen point member is projected outwardly and at a rear end with a communication hole, and a gap provided between an inner peripheral surface of the cylindrical holder and an outer peripheral surface of the rod-like body to form a gap for generating a capillary force therebetween. When the holder is held to the container, water is supplied through said communication hole to said pen point member. When the holder is detached from the container, the opening of the container is usable for water supply.
Abstract:
A color display apparatus for a video information system includes an input for receiving at least one externally applied color component signal, a display device having predetermined color characteristics, and a compensating unit responsive to the at least one externally applied color component signal from the input for compensating at least a portion of the at least one externally applied color component signal in accordance with the predetermined color characteristics of the display device. The display device is responsive to the input and the compensating unit for displaying a color image of the externally applied color component signal.
Abstract:
There is provided the construction of a multiprojection apparatus composed of a plurality of projection units arranged in the vertical and horizontal directions, in which a transparent holding strip having an H-shaped cross section is inserted between screens each composed of a lenticular sheet and a Fresnel lens, and the right and left ends of a multiscreen are supported by elastic support members, or in which a receive member for receiving the screen in the direction of the optical axis and a screen holding device are provided, the receive member has such a shape as not to block projection light corresponding to an image on the screen and is located near a joint of the screen and another screen, and the holding device is disposed on a black stripe of the lenticular sheet and always pulled by an elastic member toward the receive member. Therefore, according to the present invention, it is possible to restrict the missing of information due to joints of the screens.
Abstract:
A light emitted from a laser diode is reflected by a video disc which is rotated by a spindle motor. The reflected light is modulated by video information recorded on the video disc and converted to an electrical signal by a photodiode array. A signal generated by a trapezoidal generator is sampled with a horizontal synchronizing signal separated from the video information signal. The sampled signal is supplied to the spindle motor for correcting a time base error. A zero crossing point of the trapezoidal waveform is detected and is utilized for controlling the start of a rise portion of the trapezoidal waveform for compensating a DC offset. The trapezoidal waveform is controlled so as to vary an average power supplied to the spindle motor in accordance with a detected rotational speed difference so as to compensate a rotational speed of the spindle motor.
Abstract:
An accessory making device (1) of the present invention is a device for making an accessory including a core (83) formed into a substantially ring shape by connecting both ends of a stretchable cord-like body (46) having rubber-like elasticity and a decoration main body (83) disposed around the core in such a manner so as to abut both ends thereof against each other in a contracted state so as to be reduced in axial length. The accessory making device (1) includes a long rigid holder (5). The holder (5) can retain connecting portions (47M, 47F) on both end sides of the cord-like body (46) with the connecting portions (47M, 47F) of the cord-like body (46) separated from each other, and can be inserted through the decoration main body (83).
Abstract:
A titanium oxide photocatalyst that is capable of improving a decomposition rate, and a method for producing the same are provided. The titanium oxide photocatalyst of the present invention is a titanium oxide photocatalyst containing at least an anatase-type titanium oxide and fluorine, wherein a content of the fluorine is 2.5 wt % to 3.5 wt %, and 90 wt % or more of the fluorine is chemically bonded to the anatase-type titanium oxide.
Abstract:
In a liquid composition for metachromatic members which is to be applied to a metachromatic member having a support and provided thereon a porous layer formed by fixing therein a low refractive index pigment in a disperse state together with a binder resin, the liquid composition has a liquid medium and dissolved and/or dispersed therein a solid matter having a refractive index of from 1.3 to 1.8. Also disclosed is a metachromatic member set having this liquid composition and a metachromatic member. The liquid composition for metachromatic members satisfies permanent preservability of images, having superior density retention and shape retention of images formed in the metachromatic member and being suitable for uses in which impressions of hands, feet and the like are taken and preserved or in which written images or stamped images are preserved.
Abstract:
A color-change laminate comprising a substrate and formed thereon a porous layer which comprises a low-refractive-index pigment dispersed in a binder resin and tenaciously adherent thereto is disclosed. The porous layer becomes transparent or translucent upon absorption of a liquid medium, e.g., water to give a variety of visual changes. The low-refractive-index pigment contains at least a finely particulate silicic acid produced by the wet process. Toy sets consisting of the above color-change laminates with dolls or toy animals and toy sets consisting of the above color-change laminates with a means of water adhesion are also provided.