Abstract: In an optical lens including a lens portion having a convex or concave lens surface on each side, each lens surface of the lens portion has a convex portion of a small projection centered on the optical axis thereof, and the convex portion has the height which is approximately less than four times the used wavelength so as not to have an effect on an optical characteristic of the lens portion.

Abstract: In an optical lens including a lens portion having a convex or concave lens surface on each side, each lens surface of the lens portion has a convex portion of a small projection centered on the optical axis thereof, and the convex portion has the height which is approximately less than four times the used wavelength so as not to have an effect on an optical characteristic of the lens portion.

Abstract: A polarizer includes a substrate and a fine grid which is made of a metallic material and is formed on a surface of the substrate. The substrate has a plurality of projections formed on the surface thereof which have substantially mountain shapes in sectional view and are arranged at a predetermined height and predetermined pitches. A metal layer is formed on one inclined surface of each of the mountain-shaped projections, thereby forming the fine grid. The pitch of the metal layer is set to ½ or more of the wavelength of light used, and the height of the metal layer is set to ? or more of the wavelength of the light used.

Abstract: In an optical lens including a lens portion having a convex or concave lens surface on each side, each lens surface of the lens portion has a convex portion of a small projection centered on the optical axis thereof, and the convex portion has the height which is approximately less than four times the used wavelength so as not to have an effect on an optical characteristic of the lens portion.

Abstract: A portable information terminal inserted in an entertainment apparatus operates as if it had a life therein and functions as company that the user can talk to. The portable information terminal comprises a display unit and a casing surrounding said display unit. The display unit and said casing representing a form comprising a head and a body. The display unit functions to present facial expressions of the form. The display unit has a display screen for displaying an image based on image data generated by an image processor. The image processor has a facial expression display controller for reading facial expression information selected by a facial expression selector from a plurality of items of facial expression information, and displaying a moving image representing a deformation from a present facial expression to a facial expression based on the read facial expression information according to a morphing technique.

Abstract: In an optical lens including a lens portion having a convex or concave lens surface on each side, each lens surface of the lens portion has a convex portion of a small projection centered on the optical axis thereof, and the convex portion has the height which is approximately less than four times the used wavelength so as not to have an effect on an optical characteristic of the lens portion.

Abstract: A portable information terminal inserted in an entertainment apparatus operates as if it had a life therein and functions as company that the user can talk to. The portable information terminal comprises a display unit and a casing surrounding said display unit. The display unit and said casing representing a form comprising a head and a body. The display unit functions to present facial expressions of the form. The display unit has a display screen for displaying an image based on image data generated by an image processor. The image processor has a facial expression display controller for reading facial expression information selected by a facial expression selector from a plurality of items of facial expression information, and displaying a moving image representing a deformation from a present facial expression to a facial expression based on the read facial expression information according to a morphing technique.

Abstract: A small-sized optical reading device for performing the high-speed optical scanning of an object to be read, and for returning light irregularly reflected by the object. In this device, a first reflector element is driven in such a manner as to perform reciprocative rotations or vibrations clockwise and counterclockwise. Further, a medium, on which a bar code, namely, the object is recorded, is scanned by light beams reflected by the first reflector element. The light beams irregularly reflected by the medium are returned to a reflector element array consisting of second reflector elements of a reciprocative vibration reflector. Independent drive signals are provided concurrently to the first reflector element and the reflector element array. The reflecting surface of the first reflector element has a size sufficient to the extent that the entire spotlight caused by a semiconductor laser can be reflected.

Abstract: An optical reading system including a warning sound for preventing theft of a portable optical reading apparatus (scanner). A timer is activated when movement of the scanner is detected by a movement detection device mounted on the scanner, indicating that the scanner has been lifted (moved) from a stationary condition. A user determination unit determines whether the movement of the scanner is caused by an authorized user. When the user is an authorized person, a timer is reset. When the timer is not reset during a predetermined time period, a warning sound is generated at a sound level which changes from a low sound level to a loud sound level over a period of time unless a predetermined operation is performed. In one embodiment, a second warning sound is generated at a stationary receiving station when the scanner does not respond to a polling signal.

Abstract: This invention relates to a photoelectric switch and a photoelectric detector for detecting the presence or absence of an object by using a light, and more particularly to prevention of mutual interference in the case of using a plurality of photoelectric switches. For example, an LED in a light emitting unit intermittently emits a sensing light at the timing of an output pulse from a pulse generator. The resultant pulse is divided in frequency by a frequency divider and then delayed by a one-shot circuit. At the timing of an output pulse from the one-shot circuit, another LED emits a transmission light to a photoelectric switch at next stage. Therefore, the transmission light is always delayed from the sensing light. The transmission light from the preceding photoelectric switch of the same construction is received by a photodiode, and an output pulse is outputted from a pulse generator in synchronism with a synch timing signal produced from the light receiving unit.

Abstract: An illumination type optical recorded information reading device including a plurality of light emitting elements, a photo detector for detecting optical indication on a media and converting the detected indication to electrical information, a plurality of driving elements for driving the light emitting elements, a driving current detector for detecting a total value of driving currents flowing through the driving elements, and a controller for comparing the total value with a reference value and generating a control signal to the driving elements so as to make a difference between the total value and the reference value constant.

Abstract: Polished rice or barley enriched with nutrients, wherein the nutrients are fixed in and on the grain by coating an oil/fat and/or a wax on the grains, coating the same with a hydrophilic emulsifier and further coating them with a starch-based coating agent. The enriched polished rice or barley has essential nutrients in good balance and quality-wise advantageous characteristics.

Abstract: A high-speed packing machine includes a magazine holding a plurality of flat case-forming sheets having a plurality of folding lines. These sheets are formed into U-shaped cases one after another and the cases are transported by a case conveyor. The articles to be packed are supplied by an article conveyor extending along the case conveyor. A dead plate extends from the article conveyor for receiving the articles from the article conveyor. A plurality of flight bars are provided above the dead plate for receiving the articles from the dead plate. The flight bars are movable synchronously with the article conveyor. A plurality of pushers are movable along guide rails extending below the dead plate for supplying the articles from the flight bars to the U-shaped cases on the case conveyor traveling synchronously with the article conveyor. The pushers are movable along a path extending at an angle to the conveyors.

Abstract: In order to constitute means for reliably separating sheets positioned at the lowermost level in a magazine one by one, there are provided two stages of main and auxiliary side hooks which can be rocked in the direction for supporting the sheets and in the direction for releasing the same as operated inversely to the seam hooks, on the both left and right sides of the magazine so that the side hooks can be rocked in correlation with suction arms, each of the respective side hooks has its supporting position for the sheets made variable, and the side hooks are adjustably disposed so that the interval between the side hooks on the left and right sides of the magazine can be varied with the main and auxiliary side hooks on each side held integrally.

Abstract: A test optical fiber is slightly bent to a restorable extent, and light is side-illuminated on the bent portion to couple an optical signal to the test fiber. The optical signal coupled to the fiber by this method, propagates through the optical fiber in both directions. If the bending point, which is the point of coupling, is provided near one end of the optical fiber, because the power of the optical signal output from the end is substantially one half of the power of an optical signal coupled at the bending point, the transmission loss of the optical fiber can be measured by comparing the optical power with the optical power of the signal reaching the other end of the fiber.

Abstract: Optical fiber alignment mechanism comprising at least an optical fiber, at least three rigid members with a circular cross section, which are arranged to surround said optical fiber and of which each is in tangential contact with said optical fiber as well as with two other rigid members, and a plastic member molded in a plug like shape to contain said fiber and rigid members in lump, the outer surface of said plastic member allowing said rigid members to be exposed tangentially at least at three portions thereon.