Patent
Method of making an aperture plate for a multibeam pattern drawing apparatus
Satoru Tachihara,Koichi Maruyama,Nakamura Tetsuya,Takashi Okuyama,Tamihiro Miyoshi,Shinichi Suzuki +5 more
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TLDR
In this paper, a corrected aperture plate is used to correct the locational errors of the dot images in the normal direction when the corrected aperture is used, and the image of the pattern is recorded at the position of the aperture plate and used as a guide to form corrected apertures.Abstract:
For an aperture plate to be used to form dot images of a two dimensional aperture pattern by projection through an imaging optical system in a normal direction, a pattern of markings in ideal positions is projected through an imaging optical system in the reverse direction to normal imaging operations. The image of the pattern is recorded at the position of the aperture plate, and the recorded image is used as a guide to form corrected apertures in the aperture plate. Accordingly, locational errors of the dot images in the normal direction are corrected when the corrected aperture plate is used.read more
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Patent
Laser drawing apparatus
Etsuo Iwasaki,Takashi Okuyama +1 more
TL;DR: In this paper, a clock-pulse-phase-shift location data is calculated using pixel-dot-pitch discrepancy data measured along a scanning line defined by the scanning laser beam.
Patent
Method and apparatus for laser imaging with multi-mode devices and optical diffusers
TL;DR: In this article, a controlled-angle diffuser concentrates the radiation, counteracting the dispersive effects of multi-mode output, focusing to a preselected spot size on a recording construction.
Patent
Method for photoimaging a substrate
TL;DR: In this article, a method and apparatus for photoimaging a substrate covered with a wet curable photopolymer, wherein the photoimaged substrate is used to form images such as electrical circuits was described.
Patent
Multi-beam image forming system
TL;DR: In this paper, a multi-beam image forming system is described, which has a light emitting unit including a plurality of light sources emitting a pluralityof beams, and a table carrying a photo-sensitive film on which an image is formed with the plurality of beams.
Patent
Device for drawing economics bar charts
TL;DR: In this article, a device for drawing the economics bar charts comprises a longitudinal fixing rod, a horizontal guide rod, and a vertical supporting rod, which is fixedly connected to the upper portion of the first sliding block.
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Patent
Daylight photoplotting and film therefor
TL;DR: In this paper, a photo-sensitive film for plotting color images in daylight uses surface emulsion layers sensitive only to different and predetermined wavelengths of non-visible radiant energy, each emulsion layer is developable to manifest a distinguishable color upon exposure to sensitizing radiant energy.
Patent
Angle measuring device with line sensor
TL;DR: In this paper, a scale board carries a scale having a predetermined pitch and a light source projects this scale onto an array of sensors having a pitch which is substantially but not exactly equal to the pitch of the scale.
Patent
Photohead system for positioning an aperture wheel and method of making an aperture disc
TL;DR: An indexing system for selectively orienting one of a series of arcuately oriented different sized and/or shaped apertures formed around an aperture disc used in a photohead for exposing upon a photosensitive surface detailed graphic information using a light beam is described in this paper.
Patent
Multibeam recording device
Ikeda Masahide,Hiroshi Iwasa +1 more
TL;DR: In this article, an aperture plate 10 is arranged between a light source unit 5 in a prescribed arrayed pattern and a reduction optical system (image-forming optical system) 40 to provide a multibeam recording device capable of recording the picture of high quality by simple adjustment.
Patent
Projecting optical system for photodrawing machine
Susumu Tashiro,Tetsuo Kamoshita +1 more
TL;DR: An optical system of a photodrawing machine for photo-copying apertures onto light sensitive material minimizes undesirable effects of variations in projecting magnification and in illumination of the image forming plane as mentioned in this paper.