An optical attenuator includes a first beam splitter (14) for receiving an incident light beam from a light source (10) at a predetermined angle of incidence and splitting it into a first reflected light beam and a first transmitted light beam, and a second beam splitter (16) for receiving the first reflected light beam at the same predetermined angle of incidence and splitting it into a second re...

There is disclosed a silver halide photographic material comprising a photosensitive emulsion layer containing a nitrogen-containing heterocyclic compound and a silver halide emulsion of high-silver-chloride, which emulsion has been spectrally sensitized with a red-sensitive sensitizing dye having a definite reduction potential value, and which has been subjected to reduction sensitization. The di...

A fixing device for use in a copying machine for fixing a toner image on the surface of a recording sheet. The fixing device conveys the recording sheet between a pair of rollers consisting of a heating roller and a pressure roller to fix the toner image on the surface of the recording sheet by heating the toner image with the heating roller. After a number of recording sheets have been fixed as a...

PURPOSE:To obtain a display without failure on a display device where a binarizing display element is used by providing a means storing image data, a means outputting every pixel of the image data, a means converting pixel data into binarizing data and a means converting the binarizing data into display data. CONSTITUTION:A pixel multiplexer 11 phases an output from a VRAM 5 twice and guides the i...