摘要:
An inner ring of a tapered roller bearing is provided with an groove-like recess formed between an outer race surface and a large rib surface. A Chamfer is provided between a large-diameter-side end surface and a rolling surface in each tapered roller. (1) The height from the outer race surface of the inner ring to a contact position where the inner ring large rib surface contacts with the large-diameter-side end surface of each roller is set to be 6 to 9.5% of the diameter of the roller large-diameter-side end surface. (2) The chamfer of the large-diameter-side end surface of each roller is set to be 30 to 60% of the contact position height. In addition, (3) the size of the recess in the large rib surface side of the inner ring is set to be not larger than 75% of the chamfer of the large-diameter-side end surface of each roller.
摘要:
The laser transfer machining apparatus comprises a shaping unit for shaping the laser beam so that the laser beam has a beam pattern which corresponds to a desired pattern to be machined in the object to be machined and a generating unit disposed separately from the shaping unit for simultaneously generating a plurality of laser beams each having the beam pattern from the laser beam shaped by the shaping unit. The generating unit is adapted to emit the plural laser beams while simultaneously defining a plurality of radiation directions of the generated plural laser beams to the object to be machined. The laser transfer machining apparatus can provide a high efficiency of utilization of light and reduce the time required for machining. Furthermore, the laser transfer machining apparatus can utilize a laser with a relatively low spatially coherence such as an eximer laser.
摘要:
A laser diode monitoring apparatus activates the laser diode in a manner of impulse, measures the sag of light output level, and judges the light emitting performance to be deteriorated if the sag is greater than the reference value. The value of sag comprehends the inequality of light output characteristics of individual laser diodes and the variation of ambient temperature, enabling the accurate decay determination.
摘要:
An image data coding apparatus adopting the method of this invention includes a divider section for dividing an image having gray levels into a plurality of blocks, each consisting of a plurality of pixels; a pre-processing section for detecting the density and the presence/absence of an edge in an image of each divided block; and a vector quantizing section for encoding an image of each block in accordance with the detected density and the presence/absence of the edge in the image of the block. The pre-processing section detects a standard deviation of density levels of the pixels included in each block. The vector quantizing section divides the density levels of the pixels included in each block into a plurality of level sections so as to obtain a code indicating the level section in which the density level of each pixel is included. In the vector quantizing section, the obtained code is again encoded by means of vector quantization.
摘要:
A method of measuring the profile of a three-dimensional object including the steps of scanning the surface of the object to be measured with a slit-ray, forming an optical image of the surface of the object on an imaging plane of a nonscanning type two-dimensional image sensor which is composed of a plurality of mutually independent photosensors, measuring each time interval between a time when the slit-ray passes a predetermined point and a time when reflected rays are received by any of each of the plurality of mutually independent photosensors, storing each of the time intervals measured in separate memory means with a one to one correspondence between the position of each of the plurality of photosensors and each of the plurality of separate memory means and determining the profile from the time interval stored.
摘要:
A composite fiber reinforced thermoplastic resin stampable sheet, which comprises laminates each composed of reinforcing fibers arranged in one direction and fiber mats and a thermoplastic resin incorporated in the laminates through impregnation, which stampable sheet is characterized by the fact that the proportion of the reinforcing fibers in the laminates is in the range of 30 to 80% by weight and the laminates are contained in a proportion in the range of 20 to 70% by weight and the thermoplastic resin is contained in a proportion in the range of 30 to 80% by weight respectively. A stampable beam is produced by forming the stampable sheet with a stampable device.
摘要:
The present invention relates to excimer laser equipment which is one kind of gas laser, and in particular to a rare gas-halide excimer laser using rare gases and halogens as laser media, and adapted to control the concentration of halogens contained in laser media therewithin on the basis of the result of the measurement of the concentration of halogens in the laser media which is being used for the oscillation of laser rays therein, whereby the stabilized oscillation of the laser is always possible.
摘要:
A data processing and/or transfer apparatus communicates information to another apparatus in a mode selected from among several modes depending upon a particular characteristic or status of the other apparatus, or depending upon whether the transmitting apparatus is master relative to the other apparatus.
摘要:
An image-forming apparatus is disclosed which is able to form an image while blanking any unnecessary image portion or extracting any desired image portion at one's will. To this end, the apparatus includes a plurality of light exposing means, an image area setting means and control means. Said control means selectively renders said individual light exposing means operative or inoperative according to the selected image area by said image area setting means.
摘要:
A method of manufacturing an electrode for electrical-discharge surface treatment includes increasing oxygen content in the powder; mixing the powder, in which the oxygen content is increased, with an organic binder and a solvent to prepare a liquid mixture; granulating the powder in the liquid mixture to form granulated powder; and forming the granulated powder to prepare a compact in which an oxygen concentration ranges from 4 weight % to 16 weight %.