摘要:
A slit illumination system provided in an image forming apparatus of slit exposure type for slit-illumination of an original placed on a document glass table in the image forming apparatus. The slit illumination system is provided with a light source including an elongated exposure lamp to illuminate the original at a slit-illuminated position on the document glass table, a main reflecting mirror portion composed of first and second reflecting mirrors, and an auxiliary reflecting mirror portion composed of third and fourth reflecting mirrors. The first, second, third and fourth reflecting mirrors are respectively shaped to follow a part of first, second, third and fourth ellipsoids which are different in curvature from each other.
摘要:
An optical filter used for a color image reader in order to adjust each amount of red, green and blue rays into constant ratio and to cutoff the rays of the near infrared radiation, the optical filter having a heat absorbing optical glass substrate and first and second interference films formed on the opposite sides of the substrates. The first interference film has three to eleven layers wherein a first layer immediately adjacent to the substrate has an optical thickness of .lambda./4 or .lambda./8 and a last layer farthest from the substrate has an optical thickness of .lambda./8, and said second interference film has thirteen to twenty-three layers wherein each of a first layer, second layer and third layer formed closest to the substrate in this order has an optical thickness greater than .lambda./4 and a last layer farthest from the substrate has an optical thickness of .lambda./8.
摘要:
An information generation device includes a storage means that stores association information, the association information indicating explanatory information and an element associated with the explanatory information in association with each other, the explanatory information being displayed as an explanation related to a service provided through a Web page in a certain Web page, a recording means that records history information indicating the explanatory information browsed by a user, a generation means that, on the basis of the association information, generates display information so that an appearance of the element associated with the explanatory information indicated by the recorded history information among the elements included in a Web page displayed on a terminal device used by the user is different from an appearance in an initial state, and a transmission means that transmits the generated display information to the terminal device.
摘要:
A laser beam composite apparatus which combines more than three beams including a first beam having a first wavelength, a second beam having a second wavelength and polarized in a predetermined direction and a third beam having a second wavelength and polarized in a direction perpendicular to said polarized direction of said second beam. The laser beam composite apparatus combines the first beam and the second beam based on difference of wavelengths thereof and further combines the third beam based on difference of polarized directions thereof.
摘要:
A plurality of holding members individually hold some of a plurality of lenses in a scanning optical system. A base member holds and connects a plurality of the holding members at predetermined positional relations with rigidity higher than that of the holding member, and is attached to a structural member of an image forming apparatus.
摘要:
An interference filter for use in a copying machine comprises a glass substrate and a plurality of high-refractive index and low-refractive index layers alternately superposed on the substrate for reducing ripples at opposite sides of the reflective range. The first and second layers counted from the substrate have a greater optical layer thickness than .lambda.o/2. The third and fourth layers have a greater optical layer thickness than .lambda.o/4. The second top layer has a greater optical layer thickness than .lambda.o/2. The top layer has a smaller optical layer thickness than .lambda.o/4. The remaining layers have an optical layer thickness equal to .lambda.o/4.
摘要:
A copying machine for forming an image by scanning a laser beam which is emitted from an optical system on a photosensitive member. Photosensors are provided at optically equivalent positions to a beginning portion and an end portion of a scanning line on a photosensitive member. A scanning time of a laser beam in the main scanning direction is measured by these photosensors. The measured time and a standard time for a copy magnification set by an operator are compared, and a correction value is calculated, and at the same time, magnification in the main scanning direction is corrected using the correcting value. Also, focusing (adjusting of the beam diameter) is carried out using the photosensors. Each of the photosensors contains a photoelectric transfer element, and a beam which comes through a slit is incident to the element. Each photosensor is provided with two slits. One is perpendicular to the main scanning direction, and the other is inclined to the main scanning direction. The beam diameter in the main scanning direction is adjusted based on detection of the beam which comes through the slit which is perpendicular to the main scanning direction. The beam diameter in the sub scanning direction is adjusted based on detection of the beam which comes through the slit inclined to the main scanning direction.
摘要:
A copying machine for forming an image by scanning a laser beam which is emitted from an optical system on a photosensitive member. Photosensors are provided at optically equivalent positions to a beginning portion and an end portion of a scanning line on a photosensitive member. A scanning time of a laser beam in the main scanning direction is measured by these photosensors. The measured time and a standard time for a copy magnification set by an operator are compared, and a correction value is calculated, and at the same time, magnification in the main scanning direction is corrected using the correcting value. Also, focusing (adjusting of the beam diameter) is carried out using the photosensors. Each of the photosensors contains a photoelectric transfer element, and a beam which comes through a slit is incident to the element. Each photosensor is provided with two slits. One is perpendicular to the main scanning direction, and the other is inclined to the main scanning direction. The beam diameter in the main scanning direction is adjusted based on detection of the beam which comes through the slit which is perpendicular to the main scanning direction. The beam diameter in the sub scanning direction is adjusted based on detection of the beam which comes through the slit inclined to the main scanning direction.
摘要:
An information generation device includes a storage means that stores association information, the association information indicating explanatory information and an element associated with the explanatory information in association with each other, the explanatory information being displayed as an explanation related to a service provided through a Web page in a certain Web page, a recording means that records history information indicating the explanatory information browsed by a user, a generation means that, on the basis of the association information, generates display information so that an appearance of the element associated with the explanatory information indicated by the recorded history information among the elements included in a Web page displayed on a terminal device used by the user is different from an appearance in an initial state, and a transmission means that transmits the generated display information to the terminal device.
摘要:
An apparatus for editing color image capable, by having a desired color in an original designated and an editing mode selected, of image editing for an image in the designated color in such an editing mode as trimming, masking, erasing, and conversion to another color. A desired color in an original image is designated by a designated color input portion and thereby designated color data for separated colors are obtained. Thereafter, the original image is scanned and image data for separated colors are obtained. The thus input image data are electrically edited in the selected edit mode based on the designated color data and the edited image data are output to an image forming unit and thereby an edited color image is obtained.