摘要:
The present invention has the object to make an fØ lens constituting a scanning optical system such as a laser printer, etc., which is of a single lens configuration, and higher in resolution, thereby providing the f&thgr; lens provided with a lens performance so as to correspond to an A3 paper size or the like. The f&thgr; lens is designed by the aspherical formula as follows: Z = C x X 2 1 + 1 - ( 1 + K ) C x 2 X 2 + ∑ n = 3 u A n &LeftBracketingBar; X n &RightBracketingBar; + C y Y 2 ( 1 + ∑ m = 2 w B m &LeftBracketingBar; X m &RightBracketingBar; ) 1 + 1 - [ 1 + K y ( 1 + ∑ j = 1 v G j X 2 j ) ] [ C y 2 Y 2 ( 1 + ∑ m = 2 w B m &LeftBracketingBar; X m &RightBracketingBar; ) 2 ] - C x = 1 / R x C y = 1 / R y where Cx, K, An, Cy, Bm, Ky, and Gj are each an optional coefficient; and u, v, and w are each an integer. The f&thgr; lens is further designed by using an optional term containing an odd-numbered degree and an even-numbered degree for each of &Sgr;An|Xn|, &Sgr;Bm|Xm|, and &Sgr;GjX2j in the aspherical formula representing a shape of each of an incident surface or an outgoing surface of the f&thgr; lens.
摘要:
Sealing performance between a sealing member and a reinforcing plate adhered to a wiring unit is prevent from being deteriorated. An FPC 1 is integrated with a sealing member 2, and a cover 3 is attached to a front end portion. On upper and lower surfaces of the FPC 1, reinforcing plates 12 each having a shape of a rectangular flat plate are arranged and adhered in an opposing manner interposing the FPC 1. The sealing member 2 is formed of elastic material such as rubber, and is fixedly attached to the FPC 1 such that the sealing member 2 covers the reinforcing plates 12 adhered to the upper and lower surfaces of the FPC 1 together with the FPC 1 located along front edges and rear edges of the reinforcing plates 12.
摘要:
A multiplier calculates a product S'(x)=S(x).multidot..lambda.(x) mod X.sup.d-1 of a syndrome polynomial S(x) generated by a syndrome generator and an erasure position polynomial .lambda.(x) generated by an erasure position polynomial generator, modulo X.sup.d-1. A constant multiplier sequentially multiplies coefficients of the polynomial S'(x) and the erasure position polynomial .lambda.(x) with a power of a primitive root .alpha. of a code. The power exponents in this multiplication are determined in units of coefficients. Every time this multiplication is executed, an adder sequentially adds predetermined combinations of products. A plurality of arithmetic and logic operations according to the numbers of correctable erasures and errors are sequentially executed using the sums. A divisor and dividend are selected in accordance with the number of erasures included in the code on the basis of the plurality of arithmetic and logic operation results. A division is executed using the selected divisor and dividend. A value at a position, discriminated to be an error position, of the code is corrected based on the division result, thus performing error correction including erasure correction with a simple circuit arrangement.
摘要:
A light beam is applied to an information recording medium to record information. A light amount of the light beam reflected by the recording medium is detected simultaneously with the recording of information. A defect of the recording medium is detected by comparing the detected light amount with a reference value. When a degree of the detected defect exceeds a predetermined level, the information is rerecorded on another portion of the recording medium.
摘要:
An apparatus for discriminating a machining state from a non-machining state in a machine tool wherein a workpiece is machined with a cutting tool or grinder, comprising plural vibration sensors including at least one acoustic-emission sensor, which detect vibrations of different frequency bands, respectively, which are produced during machining of the workpiece by the tool. A discriminating device judges that the workpiece is being machined by the tool when levels of output signals generated from at least two of the vibration sensors are higher than respective predetermined threshold levels, and judges that the workpiece is not being machined by the tool when the level of an output signal generated from less than two of the vibration sensors is higher than a predetermined threshold level. Also disclosed is a method for discrimination between the machining and non-machining states.
摘要:
[Problems] To provide a method of packing fiber for artificial hair, while suppressing generation of folding mark during packaging, transportation and storage and yet preserving preferable processability and hairdressing characteristics.[Means for Solving Problems] There is provided a method of packing fiber for artificial hair, characterized by packing the artificial hair fibers in a packaging container at a filling density of no lesser than 0.1 kg/l and no more than 0.8 kg/l. Further in the packing method, the pressure of the packed artificial hair fibers applied to the top face of the packaging container is adjusted to no lesser than 0.1 kPa and no more than 8.0 kPa.
摘要:
Conventionally, when due to running out of a battery or paper the printing designated in advance is not completed and when the interrupted printing is to be resumed, the images from the beginning must be printed, or images to be printed must be selected again using the camera. To resolve this problem, a printing system, which continuously performs printing on a plurality of sheets based on print setting information including, at the least, information for designating an image to be printed, comprises input means for entering image data that are to be printed printing means for printing the image data entered by the input means, storage means for, when printing based on the print setting information is halted, storing interrupt information concerning the printing completed before the interrupt, and control means for employing the interrupt information stored in the storage means to resume printing based on the print setting information.
摘要:
A sheet clipping device of the invention is designed to detachably hold one or more sheets. The sheet clipping device is formed of an elongated base member, and a plurality of gripping devices fixed to the elongated base member at a predetermined distance away from each other along the longitudinal direction thereof. The elongated base member is formed of upper and lower portions with diagonal upper and lower guide members, and a back portion situated between the upper and lower portions. Distal ends of the upper and lower guide members are vertically spaced apart from each other. Each gripping device includes an upper frictional member fixed to the upper portion, and a lower frictional member fixed to the lower portion to face to each other. When the sheets are inserted between the upper and lower frictional members through the guide members, the sheets are frictionally retained between the frictional members. The sheets can be easily attached to or removed from the clipping device.
摘要:
Molding material composed of casting sand coated with a thermosetting resin and hydrous magnesium silicate clay mineral which may be impregnated with an acid and/or coated with a thermosetting resin, and a shell mold produced from the molding material. This material and mold minimize generation of smoke and irritating gases at the time of mold making and casting.