Abstract: A low-cost bright image-pick up lens of a small size is provided which is short in total length, wherein the angle of field is beyond 30°; the angle of incidence onto the image pickup device is narrowed; and various aberrations are appropriately corrected. The image-pick up lens comprises, from the side of an object, an aperture stop, a biconvex positive lens, and a meniscus lens having a concave surface on the object side, and each of the lenses includes at least one aspheric surface.

Abstract: For a positive lens having a convex surface on an image side thereof and a diaphragm provided on an object side thereof, the following conditions are satisfied when a surface of the lens at least on the image side is aspheric, a focal length is f, a distance from the diaphragm to a front surface of the lens is D0, and a thickness of the lens is D1: 0.2<D0/f<0.8, 1.2<(D0+D1)/f, and 0.4<R2/f<1.0.

Abstract: A low-cost bright image-pick up lens of a small size is provided which is short in total length, wherein around a 30° angle of field is enabled, the angle of incidence onto the image pickup device is narrowed, and various aberrations are appropriately corrected. The image-pick up lens comprises, from the side of an object, an aperture stop, a first meniscus lens having a convex surface on the side of an object, and a second meniscus lens with both surfaces being aspheric having a convex surface on the object side and when ‘f’ indicates the focal length of all the systems; ‘f2’ indicates the focal length of the second lens; ‘R2’ indicates the paraxial curvature radius of the first lens on the side of an image; and R3 indicates the paraxial curvature radius of the second lens on the object side, the conditions: 0.2<f/f2<2 and 0<R3/R2<0.9 are satisfied.

Abstract: A low-cost bright image-pick up lens of a small size is provided which is short in total length, wherein the angle of field is beyond 30°; the angle of incidence onto the image pickup device is narrowed; and various aberrations are appropriately corrected. The image-pick up lens comprises, from the side of an object, an aperture stop, a biconvex positive lens, and a meniscus lens having a concave surface on the object side, and each of the lenses includes at least one aspheric surface.

Abstract: For a positive lens having a convex surface on an image side thereof and a diaphragm provided on an object side thereof, the following conditions are satisfied when a surface of the lens at least on the image side is aspheric, a focal length is f, a distance from the diaphragm to a front surface of the lens is D0, and a thickness of the lens is D1: 0.2<D0/f<0.8, 1.2<(D0+D1)/f, and 0.4<R2/f<1.0.

Abstract: A data encoding system for encoding input color pixel data and outputting encoded data. The data encoding system includes a reference pixel generating device which outputs reference pixel data corresponding to the input color pixel data to be encoded; a predictor having a color order table which sets the color ranks of color codes for every reference pixel pattern, reads and outputs the color rank of the corresponding color code from the color order table on the basis of the color pixel data to be encoded and its reference pixel data; and an entropy encoding device which converts the color ranking data into encoded data and outputs the encoded data.

Abstract: A data coding device codes input object color pixel data into coded data. The data coding device includes a parallel/serial converter that converts the object color pixel data composed of parallel data of multiple bits into serial data, a state signal generator that generates a states signal for each bit of the serial data and a prediction device which groups each bit of the serial data based on the state signal, and an arithmetic calculator that converts the color pixel data into coded data based on the data received from the prediction device. A corresponding data decoding device is also disclosed.

Abstract: A data encoding system for encoding input color pixel data and outputting encoded data. The data encoding system includes a reference pixel generating device which outputs reference pixel data corresponding to the input color pixel data to be encoded; a predictor having a color order table which sets the color ranks of color codes for every reference pixel pattern, reads and outputs the color rank of the corresponding color code from the color order table on the basis of the color pixel data to be encoded and its reference pixel data; and an entropy encoding device which converts the color ranking data into encoded data and outputs the encoded data.

Abstract: To provide an oblique projection type displaying apparatus for radiating rays of light which are nearly parallel with a light bulb, thereby preventing the brightness of a resultant image from becoming uneven, the apparatus comprises a light source, optical modulating means, projecting means for projecting an image generated by the optical modulating means on a screen, and the screen, wherein a center optical axis of rays of light projected by the projecting means are obliquely entered into the screen, wherein the projecting means comprises first projecting optical means for converting an image generated by the optical modulating means into an intermediate image with trapezoidal distortion, and second projecting optical means for converting the intermediate image with trapezoidal distortion into an image without trapezoidal distortion on the screen, and wherein the first projecting optical means comprises two lenses which are not parallel each other.

Abstract: Presented are compositions for disinfection of the skin. The composition is characterized in that it contains in an aqueous medium; 0.5 to 10 w/v % of chlorhexidine digluconate, 5 to 25 w/v % of polyoxyethylene alkyl ether, 1 to 5 w/v % of fatty acid diethanolamide, 1 to 5 w/v % of alkyldimethylamine oxide, and macrogol at less than 10 w/v %. The polyoxyethylene alkyl ether and macrogol may be replaced with 10 to 35 w/v % of polyoxyethylene alkylphenyl ether. The composition may further contain 5 w/v % or lower polyoxyethylene lanolin.Since the composition will not solidify even when its solvent is evaporated, the plugging of the outlet opening of the dispenser will be avoided.

Abstract: A method of making a synthetic image in a simulation system for attachment of spectacles, in which a synthetic image of image pickup data of a spectacles frame taken in at a first magnification and image pickup data of a person's image derived from an imaging apparatus is made by a computer, and a state in which the person wears a pair of spectacles is displayed by a display apparatus, characterized by the steps of: calculating a second magnification to an actual person of the display image on a display screen on the basis of the coordinates of the positions of the apexes of the corneas of both of the right and left eyes which are detected from a still image on the display screen of a person who does not wear a pair of spectacles which is picked up by the imaging apparatus and is transmitted to the computer and on the basis of the information of the distance between the pupils of the person which is input from the computer; calculating the spectacles frame synthetic position on the display screen and a third