Abstract: A liquid-level gauge is provided, which includes a body of transparent material having a head part connected to an elongated part with an end region formed with two facets of 45 degrees relative to a vertical line of sight along the elongated part with a common linear tip portion disposable into a matching socket to engage with a liquid-level in an enclosure tank. The liquid-level gauge includes a horizontal second planar member coupled to a first planar member inserted to a slot cut vertically into the elongated part from the common linear tip portion. The first planar member is engraved a first legend on two opposite sides and the second planar member is engraved a second legend on top side facing the two facets. The head part forms an aperture allowing a view of an image bearing the first/second legend when the liquid-level is fully below/above the two facets.

Abstract: A scanning unit of a position measuring unit for scanning a scale, the scanning unit including a display unit having a light source. The scanning unit further including a regulating device for controlling an amplitude of an analog scanning signal of the scanning unit, wherein the regulating device triggers the light source to cause a change of an illumination state of the light source, wherein successive changes of the illumination state of the light source contain information regarding the amplitude of the analog scanning signal.

Abstract: A reflective optical scale for an encoder, in which a first region and a second region are alternately arranged on an underlying member, wherein the first region has a reflecting member on the underlying member, a layer made up of a first material, and a layer made up of a second material, the second region has the layer made up of the second material, the first and the second material have transparency, the first material has a lower refractive index of the light than the reflecting member and the second material, the second material has a lower refractive index of the light than the underlying member, and optical thicknesses of the first and the second material are set so that a reflectance of the light of the first region is higher than the second region.

Abstract: A vehicle simulation system equipped to display information on the rear side of a driver (rider). The simulation system includes a dummy bicycle operated by the rider, a monitor on the front side for displaying a scene based on the operations of the dummy bicycle, and a lamp unit connected to the dummy bicycle and provided on the rear side relative to the seated position of the rider. The lamp unit has a red lamp, a yellow lamp and a green lamp, and is controlledly turned ON under the action of a main control unit. An input device is provided on a steering handle of the dummy bicycle. The input device has a switch for red, a switch for yellow, and a switch for green. The rider checks behind, and operates the input device according to the ON/OFF conditions of the lamp unit.

Abstract: An optical encoder for measuring the rotary angle of a rotating shaft comprising an electronic board with light emitter and light sensor means disposed between a pair of overlying light guides having a common symmetry axis that coincides with the shaft rotation axis, the light guides receiving light from a light emitter means on the electronic board and returning light to a light sensor means the electronic board; an optical pattern of two concentric annular sections attached to the rotating shaft and an optical pattern of two concentric annular sections on a stationary device. A method for measuring the rotary angle of the rotating shaft by emitting light from the electronic board into the light guides and processing the signals received on the electronic board from light rays returning through the light guides after interacting with the said optical patterns.

Abstract: A container for creating a multi-dimensional visual display or illusion. The container includes sidewall and a visual display assembly mounted on an exterior surface of the sidewall. The display assembly may be provided in one or more labels attached to the exterior surface and includes a reflective surface attached to a rear portion of the sidewall. A primary image is positioned between the reflective surface and exterior surface of the sidewall. The sidewall is curved and the reflective surface and primary image are mounted to conform to this curved shape. A framing element is provided on a front portion of the sidewall with background images on an inward facing surface. The framing element includes a view port providing a line of sight through the container onto the primary image and reflective surface, which reflects the background images to the viewer so as to appear behind the primary image.

Abstract: The present invention provides a banknote scope that is comprised of a lightproof cartridge and a circuit control-detecting device, wherein a light-emitting component of said detecting device is set upon the inside of the lightproof cartridge; said lightproof cartridge has a gap-detecting channel so that the light ray emitted from the detecting device exactly shines on the detecting channel via a detecting window; for observing, the lightproof cartridge has a sight-glass coordinating to the detecting window oppositely. This banknote scope can reduce the radiation of static electric to the human body, and to avoid the user unexpectedly inserting fingers into the detecting window, therefore the operation of it is very safe, and it has a cramped construction, small volume for facilitating carryover and operation.

Abstract: A reflecting surface is formed at a rear side of a thick portion so that when viewed from the center front relative to the thick portion, light is reflected by the reflecting surface to let the color of the panel be seen as the color of the thick portion. With this, the confusing visual aspect of the window member of the indicator unit that occurs when the color of the thick portion of the window member looks different from the color of the other portion of the window member can be eliminated without having to color the rear surface side of the thick portion.

Abstract: A driver's overhead indicator for automobile is a device using a reflecting plate in front of an instrument panel the image of which can be reflected through a secondary reflection onto a projecting plate which is installed on top of a dashboard. Both the reflecting plate and the projecting plate can be adjusted by a tightening member which is linked to a supporting frame, from which two stand members support and fasten to the body of the car. Said reflecting plate and said projecting plate were treated by a special layer of material such that the projecting plate maintains a clear background. The driver in a car can see the instrument panel from the projecting plate without looking at the instrument panel itself. This overhead indicating device can bypass the driver to look down at the instrument panel and avoid any possible accident that could arise while looking down.