摘要:
An optical reading document board, an image reading apparatus, and an image forming apparatus, the optical reading document board including a platen formed of transparent glass and having a top surface on which a document is placed, and a reflectance reduction layer coated on a bottom surface of the platen and having a refractive index different from a refractive index of the platen.
摘要:
Disclosed are a light guide member, a charge eliminating unit and an image forming apparatus and/or an image reading apparatus having the same. The light guide member may include an incidence face through which light is introduced, an irregular reflection portion arranged along a longitudinal direction of the light guide member for irregular reflection of the light introduced through the incidence face and an emission face arranged opposite the irregular reflection portion for emission of the light. At least one recess may be formed in the incidence face for diffusion of the light introduced through the incidence face.
摘要:
A scanner module comprises an illuminator configured to illuminate a document by emitting light onto the document. The illuminator comprises a light source configured to emit the light and a light guide unit configured to guide the light emitted from the light source to illuminate at least two areas on the document, the center positions of the at least two areas on the document being spaced apart from each other.
摘要:
Disclosed are a light guide member, a charge eliminating unit and an image forming apparatus and/or an image reading apparatus having the same. The light guide member may include an incidence face through which light is introduced, an irregular reflection portion arranged along a longitudinal direction of the light guide member for irregular reflection of the light introduced through the incidence face and an emission face arranged opposite the irregular reflection portion for emission of the light. At least one recess may be formed in the incidence face for diffusion of the light introduced through the incidence face.
摘要:
A unified simulation system is provided. The unified simulation system includes an input database storing input data comprising an input parameter and environment information, a unified simulator executing a unified process-device-circuit simulation of characteristics of a semiconductor apparatus based on the input data and at least one predetermined model and outputting a simulation result as output data, and an output database storing the output data. The unified simulator includes a process simulator simulating at least one process based on the input data and outputting process characteristic data, a device simulator simulating at least one device based on the process characteristic data and outputting device characteristic data, and a circuit simulator simulating a circuit comprising the at least one device. Accordingly, multiple devices can be simultaneously optimized for the optimization of circuit characteristics and an accurate specification at process and device levels can be provided.
摘要:
A scanner module and an image scanning apparatus includes an illuminator that includes a light source, a light guide extending in a main scanning direction to change a direction of the light from the light source, a guide holder recessed with a light guide mounting portion in which the light guide is mounted, and at least one supporting protrusion protruding from an entrance of the light guide mounting portion into the light guide mounting portion to support the light guide received in the light guide mounting portion. As the light guide is supported by the supporting protrusion formed at the entrance of the light guide mounting portion, it is possible to reduce deformation of the light guide and/or to prevent the light guide from being falling out of the light guide mounting portion when subjected to, e.g., a shock.
摘要:
Disclosed are a scanner module and an image scanning apparatus employing the same. The scanner module includes a light source generating light to be irradiated onto an object and a light guide member extending in correspondence with a width of the object. The light guide member has a reflective surface defined by a plurality of reflective grooves, some of which arranged to be non-parallel with other ones. Light is effectively diffused and/or scattered in the width direction of the light guide member by the reflective grooves, allowing a uniform light distribution across the scanning width.
摘要:
An image scanning apparatus and method. The image scanning apparatus which scans an image of document includes a light source including at least three light emitting elements of red, green, and blue, which are sequentially lit up at intervals of a first time, a light emitting time control unit to control a light emitting time of the at least three light emitting elements such that the first time is shorter than a second time by a predetermined value, a sensor array to transform an image formed by light reflected from the document into an electric signal according to results of the control of the light emitting time and the light intensity, and an output unit to output image data corresponding to the transformed electric signal.
摘要:
A scanner module and an image scanning apparatus includes an illuminator that includes a light source, a light guide extending in a main scanning direction to change a direction of the light from the light source, a guide holder recessed with a light guide mounting portion in which the light guide is mounted, and at least one supporting protrusion protruding from an entrance of the light guide mounting portion into the light guide mounting portion to support the light guide received in the light guide mounting portion. As the light guide is supported by the supporting protrusion formed at the entrance of the light guide mounting portion, it is possible to reduce deformation of the light guide and/or to prevent the light guide from being falling out of the light guide mounting portion when subjected to, e.g., a shock.
摘要:
Disclosed are an illuminator and an image forming apparatus employing an illuminator. The illuminator includes a light guide to guide light generated from a light source to an object to be illuminated. The light guide includes at least one incidence face facing the light source and an emission face configured to emit the light to the target object. A diffusion pattern may be formed on the emission face to extend from one longitudinal end to the other longitudinal end of the emission face. The emission face may have a constant cross section or a varying cross section along a longitudinal direction thereof. The illuminator may be part of an image reading device to uniformly or near uniformly irradiate light to a document. The illuminator may also be incorporated in an image forming apparatus to irradiate light to a photosensitive body for elimination or reduction of electric potential from the photosensitive body.