摘要:
A pattern writing apparatus for writing a pattern on a photosensitive material comprises a head provided with a DMD having a micromirror group which spatially modulates reflected light. Light from the micromirrors of the DMD are directed to irradiation regions (61) on the substrate, respectively. The irradiation regions (61) are moved over the substrate with movement of the substrate relative to the head. The DMD is provided within the head so that the direction of arrangement of the irradiation regions (61) is tilted relative to the main scanning direction, and a center-to-center distance (L1) along the sub-scanning direction between two adjacent irradiation regions (61) arranged in the main scanning direction is made equal to a pitch (P1) of writing cells (620) on the substrate with respect to the sub-scanning direction. ON/OFF control of light irradiation of each irradiation region is performed each time the irradiation regions 61 move a distance equal to twice a pitch (P2).
摘要:
An A-phase pulse (S.sub.A) and a B-phase pulse (S.sub.B) are transmitted from a laser interferometic measuring device to a conversion device (5). When the distance-to-be-measured (l) is increasing, a conversion coefficient (D.sub.R) is added to or subtracted from an initial value in an arithmetic calculator (53) at the rising edge and the trailing edge of the pulses (S.sub.A, S.sub.B). The conversion coefficient has a digital value of M-digits and represents a reference distance .lambda./N, where .lambda. is the wavelength of a laser beam (LB.sub.1, LB.sub.2) employed in the laser measuring machine and M and N are positive integers. A predetermined unit distance in the metric system corresponds to a unit number in the (M+1)-th digit. A distance pulse signal (S.sub.L) is generated in response to a carry signal and a borrow signal from the arithmetic calculator, and is used in expressing a change of the distance in the metric system.
摘要:
An image recording apparatus (1) has a stage unit (2) for holding a substrate (9), an irradiation unit (4) having a plurality of irradiation parts (40) and a mechanism for relatively moving the stage unit (2) and the irradiation unit (4). An irradiation part (40) is provided with a DMD having a group of micromirrors for modulating a reflected light beam and a micro moving mechanism for moving the DMD relatively to the irradiation unit (4) in the X direction, thereby microscopically moving an irradiation position of the irradiation part (40) in the X direction. The irradiation part (40) is further provided with a zoom lens, thereby magnifying and reducing an image of the DMD on the substrate (9). By controlling a plurality of irradiation parts (40) parallelly and independently, the image recording apparatus (1) can write a fine pattern at high speed.
摘要:
A laser drawing apparatus according to the invention calibrates the accuracy of a first light quantity monitor in detecting the quantities of laser beams, based on results of detection by a second light quantity monitor of the quantities of laser beams emitted from an imaging optical system to a drawing stage, when a characteristic deterioration of or adhesion of foreign matter to optical components of the first light quantity monitor has resulted in variations in the optical characteristic of the first light quantity monitor, and variations in the detection by the first light quantity monitor of the quantities of the laser beams. The quantities of the laser beams emitted to a printed circuit board (image-receiving object) is thereby adjusted to a proper value, to maintain high-quality, high-definition drawings requiring a high degree of light quantity precision.
摘要:
A head lining of an automobile is formed with a notched portion which is surrounded by a forward corresponding portion of the head lining to be brought into contact with a front surface of a pillar, and a backward corresponding portion of the head lining to be brought into contact with a rear surface of the pillar. The head lining is further formed with first slits on the head lining so that the forward corresponding portion and backward corresponding portion are brought into contact with the front surface and rear surface of the pillar in such a manner that the forward corresponding portion and backward corresponding portion are curved downwardly. The forward corresponding portion and backward corresponding portion are formed so as to be extended from a position where they are brought into contact with the front surface and rear surface of the pillar.
摘要:
In a motor vehicle having a sun roof construction wherein a guide rail for a sun roof lid extends along a sun roof opening and is secured to a fixed member of the vehicle, there is arranged a ceiling structure. The ceiling structure comprises a ceiling board having an opening which faces the sun roof opening, the ceiling board opening being thus bounded by a peripheral edge portion of the ceiling board; a flange portion integrally connected to the guide rail and having a plurality of cuts; a plurality of hook members fixed to the peripheral edge portion, each hook member having a pawl; and an elongate retainer having an engaging foot portion, wherein the hook members are passed through the cuts of the flange portion and projected outward from the flange portion, and the retainer is placed on the flange portion having the engaging foot portion engaged with the pawls of the hook members.
摘要:
A luggage carpet laid over a luggage room floor of a motor vehicle and rear surface of a seat back of a seat located adjacent to the luggage room. The portions of the carpet located at a region extending substantially along and in the vicinity of a boundary between the seat back and the luggage room floor have respective surface areas disposed in opposition to each other on a same surface of the carpet, said portions being joined together at respective ends in said opposite surface areas to form at least a hinge.
摘要:
A welt made of resins and U-shaped in section to be fitted onto rims of attached members, characterized in that a pair of engaging pieces made integral to the welt at their outer substantially center portions extend expanding outward from inside the U-shaped portion and from both opened opposite rims of the welt, and that the rim portion of an attached member is forcedly inserted into the welt through those clearances which are between front and back ends of the engaging pieces.
摘要:
In image scanning in which three lamps provided for Red, Green and Blue color components are switched successively and light transmitted through or reflected at an original is received by a CCD line photosensor, variation in lamp output light quantity with time and relative variations in output light intensity among the three lamps are corrected. In one embodiment, each lamp is turned off or operation of the CCD is terminated when the light quantity emitted from the lamp reaches a setup quantity. In a second embodiment, a voltage corresponding to the color component data obtained by the CCD is divided by a voltage corresponding to the effective light quantity emitted from each lamp.
摘要:
A pixel synchronizing signal between a picture input scanning apparatus and a reproduction record scanning apparatus is generated by dividing frequency of a reference signal according to scanning speed in the main scanning direction into a plurality of slightly different frequencies from one another by a plurality of dividers, pairs of the frequencies are converted into heterodyne frequencies by at least a pair of phase synchronizing loop circuits coupled with the heterodyne frequencies of mutual output frequencies thereof, and frequencies of output signals of the phase synchronizing loop circuits of which feeding back signals are the heterodyne frequencies among the phase synchronizing loop circuits are divided to make them output frequencies. The apparatus for practicing the method comprises a reference pulse generating means for generating a pulse signal of which frequency is varied according to the scanning speed in the main scanning direction, at least a pair of frequency dividers converting their frequencies into two signals having slightly different frequencies, at least a pair of phase synchronizing loop circuits converting frequencies of output signals of the dividers, a frequency mixer for outputting heterodyne frequency to a feeding back frequency divider and a frequency divider for dividing frequency of an output signal of the phase synchronizing loop circuit to which the signal of heterodyne frequency is to be fed.