Abstract in simplified Chinese:本发明系提供一种散热性能佳之照明设备用发光单元。本发明系系一种发光单元,包含有:发光组件;发光组件基板,系用以装载前述发光组件者;发光组件基板框体材料,系具有用以露出前述发光组件之开口窗者;及电极,系供电至前述发光组件者。其特征在于:前述发光组件基板系金属,而前述发光组件系直接装载于前述发光组件基板者。又,前述发光组件基板系金属,且前述发光组件基板设有金属氧化膜,而前述发光组件系装载于形成在前述金属氧化膜之前述电极上。
Abstract:
An image reading apparatus includes a sheet conveyance path on which a sheet of a document from which an image is to be read is conveyable; a light source that emits light to be irradiated on the sheet; a conductive unit through which heat generated at the light source is transferable; and a heat radiating unit that forms a part of the sheet conveyance path, through which the heat transferred from the light source to the conductive unit is propagable, and that radiates the heat propagated from the conductive unit to air flowing in the sheet conveyance path when the sheet is being conveyed.
Abstract:
To provide an image forming apparatus having a plurality of optical systems each simultaneously scanning two stations by one polygon mirror to minimize conveyance-directional color misregistration of an intermediate transferring belt. An electrophotographic color laser printer connected with a host computer is provided with a scanner unit common to first and second stations, a scanner unit common to third and fourth stations, and a registration-position detector for reading an image pattern formed on an intermediate transferring belt and detecting a registration position of an image of a laser beam. The plane phase of the polygon mirror in the first and second stations is controlled and central positions of image patterns by two laser beams are detected to correct the misregistration between these central positions.
Abstract:
There is disclosed a method for providing precise color-to-color registration of color dots in a multicolor proof with a thermal printer comprising a CPU and Printer Controller, a Motion Controller, a writing drum, and a writing head coupled to a translation means. Using the disclosed method, a proof and a dye donor member with a predetermined dye color thereon are mounted on the writing drum. The writing head is then moved to a predetermined start position defined by a sensor at a predetermined position along the translation means which has its optical path blocked by the writing head. The writing head is then moved forward to a predetermined home position which is defined by a next subsequent pulse from a multi-pulse radial position-indicating encoder coupled to the translation means occurring after the writing head leaves the start position. In sequence, the writing drum and then the translation means are accelerated with a separate predetermined substantially constant acceleration until a separate predetermined velocity is obtained. After the predetermined velocity of the translation means is obtained, the printing of color dots on the proof is started upon the receipt of a next subsequent pulse from a multi-pulse radial position-indicating encoder coupled to the writing drum. 1. A method of printing color dots on a multicolor proof with a thermal printer comprising a rotatable writing drum and a writing head which is coupled to a translation means comprising the steps of: (a) activating the translation means for moving the writing head to a predetermined fixed start position; (b) moving the writing head in a forward direction to a home position defined by the detection of a next subsequent pulse from a first radial position encoder coupled to the translation means after the writing head has reached the predetermined fixed start position in step (a), and simultaneously therewith stopping the movement of the translation means and the writing head, where the first radial positional encoder produces a predetermined plurality of pulses per revolution of the translation means; (c) accelerating the writing drum with a substantially constant acceleration to a predetermined velocity in response to the receipt of the next subsequent pulse from the first radial position encoder in step (b); (d) accelerating the translation means with a predetermined substantially constant acceleration to a predetermined velocity in response to the writing drum reaching the predetermined velocity in step (c); (e) selectively energizing a predetermined number of thermal elements in the writing head for starting the printing of color dots of a dye color onto a receiver member mounted on the writing drum in response to the writing drum reaching a predetermined radial position after the translation means has reached the predetermined velocity; and (f) repeating steps (a) through (e) for each other dye color needed to print the multicolor proof.
Abstract:
PURPOSE:To unnecessitate the correction circuit by reducing the variability of bit signals by a method wherein the refractive index is continuously changed in the film thickness direction, and the refractive index of a photoconductive layer in the neighborhood of the substrate surface is set at 3.2 or less in the light of 6,328Angstrom wavelength. CONSTITUTION:In this photosensor, the photoconductive layer has the refractive index continuously changing, with respect to the film thickness direction, at least in part in the film thickness direction. Besides, the refractive index of this photoconductive layer in the neighborhood of the substrate surface is 3.2 or less in the light of 6,328Angstrom wavelength. In other words, the photoconductive layer is made of amorphous material, and an a-Si underlay layer 2 have a refractive index of 3.2 or less. An a-Si layer 3 has a refractive index of more than 3.2, preferably approx. 3.4. Such a photoconductive layer can be formed by suitably setting such conditions for glow discharge by reactive sputtering or ion plating as discharge power, substrate temperature, composition of raw material gas, and pressure of raw material gas.
Abstract:
PURPOSE:To improve adhesive properties between a photoconductive layer in a photosensor for a picture reader and a substrate by continuously changing the refractive index of the photoconductive layer in the direction of film thickness. CONSTITUTION:A photoconductive layer consists of an amorphous material mainly comprising a-Si, and the refractive index of an a-Si undercoat layer 2 extends over 3.2 or less in the beam having a wavelength of 6,328Angstrom . In the a-Si undercoat layer 2 adjacent to a base 1, adhesive properties with the base body 1 can be kept excellent by conducting glow discharge by discharge power such as comparatively large one and forming a layer having small stress. A section, a refractive index thereof continuously changes in the direction of film thickness while gradually reducing discharge power is shaped, and an a-Si layer 3 having a comparatively large refractive index is formed. It is preferable that the thickness of the undercoat layer 2 extends over 1,000Angstrom or less when beams are projected from the base body 1 side and the device is used. The a-Si undercoat layer 2 for the photosensor array has action as a stress relaxation layer, thus improving adhesive properties between the substrate and the photoconductive layer.
Abstract:
PURPOSE:To read video information without error and to file video information, by detecting the size of object to be read, and informing the result of detection, if it is in dissidence with the size designation from an input section. CONSTITUTION:When an original is inputted to a video information file device, the original registration titled information and the designated size information are inputted from a keyboard 3c by the operator according to the operating procedure displayed on a video display device 5a. The original is set to the original reference end of the original carrying section, and the presence of original and the size of original are detected at the original presence detecting section and the orignal size detecting section, and the detected information is inputted to a CPU 3a of an operation controller 3. One page's share of the video information read at the read-in section of a video input device 1 is stored in a page buffer 2a of a video processor 2, and the size designating information from the keyboard 3c and the detected size from the original size detecting section are compared at the CPU 3a, and if they are in dissidence, the result is displayed on a device 5a and the result is informed to the operator.
Abstract:
A high speed imaging apparatus for CCD based scanners comprises a housing having separate compartments which complement modular assemblies installed therein. A decoder compartment houses components associated with locating and decoding an image. An optics compartment houses the mirrors and associated optics for reflecting the subject image onto the CCD detector. A lighting compartment includes high intensity lamps and the associated components for illuminating an object to be imaged. The lighting compartment includes a heat management system which removes the heat from the high intensity lamps and prevents heat from migrating to other compartments within the housing.
Abstract:
The image forming apparatus can retain a stable and high image quality for many hours without use of any high precise mechanical parts and without causing any non-uniformity and mal-registration in color image. In the image forming apparatus, an image recording medium (photosensitive drum) (6a) is driven by a rotative driving mechanism (pulleys and belts); and an image recording section (print bar) (6c) records an image repeatedly on the rotating image recording medium (6a) in a direction perpendicular to a rotational direction of the image recording medium. The image recorded on the image recording medium (6a) is transcribed onto an image transcribing medium (paper) (22) being fed in the rotational direction of the image recording medium (6a) to form an image. In particular, the apparatus comprises a rotation detecting section (rotary encoder) (6r) for detecting angular travel rates of the image recording medium (6a); and a recording timing control section (5) for controlling recording timing (HSYNC) at which the image is started to be recorded in the direction perpendicular to the rotational direction of the image recording medium (6a), on the basis of the angular travel rates detected by the rotation detecting section (6r).
Abstract:
A color image forming apparatus forms a color image by superposing images of plural colors in plane-sequential manner. In the color image forming apparatus, the amount of aberration between the detection signal for the recording medium for the first color and the horizontal synchronization signal is measured by a counter, and the start timing of image formation of the second and subsequent colors is controlled by a delay device, according to the measured amount of aberration.