Abstract:
There are provided a lens barrel, an imaging device body, and an imaging device that can reduce a deviation in a blurred image of oblique luminous flux caused by an APD filter.A lens barrel includes a first lens optical system and a second lens optical system serving as lens optical systems including focus lenses, a diaphragm that changes the amount of an incident ray and emits the incident ray, a first APD filter that is disposed on a light-incident side of the diaphragm, and a second APD filter that is disposed on a light-emitting side of the diaphragm. Since the amount of a reduced upper ray L1 of oblique luminous flux and the amount of a reduced lower ray L2 thereof are made to be substantially equal to each other by the first APD filter and the second APD filter, a deviation of a blurred image is reduced.
Abstract:
There are provided a lens barrel, an imaging device body, and an imaging device that can reduce a deviation in a blurred image of oblique luminous flux caused by an APD filter.A lens barrel includes a first lens optical system and a second lens optical system serving as lens optical systems including focus lenses, a diaphragm that changes the amount of an incident ray and emits the incident ray, a first APD filter that is disposed on a light-incident side of the diaphragm, and a second APD filter that is disposed on a light-emitting side of the diaphragm. Since the amount of a reduced upper ray L1 of oblique luminous flux and the amount of a reduced lower ray L2 thereof are made to be substantially equal to each other by the first APD filter and the second APD filter, a deviation of a blurred image is reduced.
Abstract:
An optical scanning device includes a scanning member, a plurality of light sources, a first reflection mirror, and a second reflection mirror. The scanning member scans incident laser beams in a predetermined main scanning direction. The plurality of light sources emit the laser beams from positions that are different along a sub scanning direction that is perpendicular to an optical axis direction of the laser beams and the main scanning direction. The first reflection mirror is inclined around the main scanning direction as a rotation axis, is inclined around the sub scanning direction as another rotation axis, and reflects the laser beams emitted from the light sources. The second reflection mirror is inclined around the main scanning direction as a rotation axis, is inclined around the sub scanning direction as another rotation axis, and reflects the laser beams reflected by the first reflection mirror toward the scanning member.
Abstract:
n optical scanning device includes a scanning member, a plurality of light sources, a first reflection mirror, and a second reflection mirror. The scanning member scans incident laser beams in a predetermined main scanning direction. The plurality of light sources emit the laser beams from positions that are different along a sub scanning direction that is perpendicular to an optical axis direction of the laser beams and the main scanning direction. The first reflection mirror is inclined around the main scanning direction as a rotation axis, is inclined around the sub scanning direction as another rotation axis, and reflects the laser beams emitted from the light sources. The second reflection mirror is inclined around the main scanning direction as a rotation axis, is inclined around the sub scanning direction as another rotation axis, and reflects the laser beams reflected by the first reflection mirror toward the scanning member.
Abstract:
An optical scanner having a scanner glass with a bottom surface includes an LED illumination source and a reflector, disposed below the glass. The illumination source has a target-oriented surface oriented to direct light toward the glass at a non-perpendicular angle. The reflector is oriented to direct light reflected off of the bottom surface toward the target-oriented surface.
Abstract:
An image reading device includes a light source member having light source portions that release light; a light guide member that has an input section facing the light source portions and to which the released light is input, and an output section outputting the input light, and that guides the light toward a predetermined radiation position; a support member supporting the light source member and the light guide member and having higher rigidity than them; a retaining member retaining the light guide member in a supported state by the support member by pressing the light guide member toward the support member; a contact section that is provided in the light guide member, comes into contact with the retaining member, and protrudes from the light guide member toward the retaining member; and a reader member receiving the light from the radiation position so as to read an image thereof.
Abstract:
An image reading apparatus includes: a light irradiating means for irradiating light to a subject having images to be read; an image forming means for making the light from the subject incident on an image plane so as to form images as erected images; and a photoelectric conversion means for converting the incident light of the erected images into image signals, wherein the image forming means is constituted of a plurality of lens arrays that have a mutually identical shape and property and are sequentially disposed, sharing common light axes, between the subject and the photoelectric conversion means, and the respective lens arrays are formed by integral molding of a plurality of lenses, and an aperture provided with light passing holes with the light axes as the center is interposed at least between the plurality of lens arrays, and areas other than the light passing holes in the aperture form light shielding areas.
Abstract:
The present invention is an optical scanning apparatus provided with a light source, an optical deflector that reflects and deflects a light beam from the light source, one or more lenses through which the light beam reflected by the optical deflector passes, a reflective mirror group which guides the light beam having passed through the lens, and an image bearing member on which the light beam having passed through the reflective mirror group forms an image, in which the reflective mirror group disposed in accordance with the light source is configured by including at least a third reflective mirror that reflects the light beam having passed through the lens toward the image bearing member, and the third reflective mirror and the image bearing member are arranged opposing each other across an optical path reflected by the optical deflector and passing through the lens.
Abstract:
A maintenance information communication terminal, the terminal exchanging maintenance information on an apparatus to be maintenanced with a maintenance information management host, the terminal and the host being connectable together by a line, the apparatus connected to the terminal, the terminal comprising: a host number memory section that stores a telephone number of the host; a terminal call origination section that originates a call to the host of the stored telephone number so that the host recognizes a telephone number of the terminal; and a ringing duration controlling section that controls a ringing duration of the call so as to halt the call before the host connects the line and thereby to request the host to start communication.
Abstract:
The invention is to provide a light-focusing for image-gathering device that receive the light coming from the image of an object being scanned. The light-focusing for image-gathering device is comprised of: at least one reflection mirror, an imaging device and at least one raster (optical grate). The reflection mirror has plural concave surfaces that are arranged appropriately, and the concave surface provides the light being focused and reflected to a predetermined route. The imaging device receives the light reflected from at least one reflection mirror and converts it into electronic signal. The raster has plural pervious holes, of which positions are just respectively corresponded to each concave surface. The raster is located in the light-path route between the imaging device and at least one reflection mirror. When an image data of an object being scanned that can be divided into receivable image-and-light signal of the object being scanned and un-receivable image-and-light signal of the object being scanned is gathered executively, the un-receivable image-and-light signals of the object being scanned are first removed, then the adjacent receivable image-and-light signal of the object being be scanned is connected together to obtain a complete image output data.