69 results about "Photographic plate" patented technology

The invention discloses an electroplating copper plughole process of a circuit board. The process comprises the following steps of: manufacturing a substrate inner layer circuit: arranging an inner layer circuit on a material plate coated with a copper layer, overlapping a plurality of plates and laminating, and drilling a through hole on the multi-layer plate; electroplating the surface of a copper deposition plate: arranging the multi-layer plate in the copper deposition liquid to plate a conductive thin copper layer on the wall of the hole and the external surface of the multi-layer plate; transferring a special plating hole pattern, i.e., transferring the photographic plate image to the multi-layer plate; electroplating the through hole: electroplating the multi-layer plate to fill the through hole with the plated copper; reducing copper and etching: the through hole plated with copper partially exposing out of the plate surface, removing copper exposing out of the plate surface; arranging outer layer circuit: carrying out the arrangement of the outer layer circuit of the multi-layer plate; electroplating pattern; reducing film and etching: removing the dry film and etching; and printing green oil on the naked copper plate and work character, and baking to produce the finished plate.

The invention discloses a system for detecting an error and guiding error correction and a method thereof. The system comprises a laser transmitter used for transmitting point laser, a reflection plate used for carrying out specular reflection on laser emitted by the laser transmitter, a photographic plate used for detecting the laser signal emitted by the reflection plate, a signal processor which is electrically connected with the photographic plate and is used for processing the signal transmitted by the photographic plate, a device control center which is electrically connected with the signal processor and displays the result of the signal processor, and a signal processor which receives a reflection laser point position signal transmitted by the photographic plate, compares the signal with a stored center point position, calculates whether a target object position has deviation and a deviation direction, and carries out real-time transmission to the device control center to carry out deviation correction. The system is used for detecting up, down, left and right errors relative to the center and guiding error correction, and the system has the advantages of simple structure, low installation accuracy requirement and low cost.

The invention discloses a comprehensive multitask output system which realizes trinity of CTP(Computer To Plate), CTF(Computer To Film) and CTD(Computer To Digital Proofing) by a high precision control platform, a high resolution inkjet printer, a computer image processing software, etc. No darkroom operation is needed in the invention. A traditional low-cost PS photographic plate is used in digital printing and plate making, thus simplifying the structure of a selenium plate and improving the output quality. Plate making can be carried out directly in a computer digital film output part without a chemical developing machine. By adopting a high resolution inkjet image color management system and a screening technology in printing, the image output by the CTD is exquisite and natural, and the invention is a comprehensive prepress technology of digitalization of a traditional printing device.

The invention discloses a power station boiler membrane panel welding joint blind area X ray detection method. The method comprises the following steps: firstly, placing a ray machine on one side of a to-be-radiated workpiece; adhering a camera bag containing films to the other side of the workpiece, and adhering the back of the camera bag to an anti-scatter lead plate; then, regulating the position of the X machine so as to regulate an included angle between a radiating centerline and the plane of a heated surface tube to 40-50 degrees; acquiring a welding joint blind area X ray image film by virtue of the X machine; and finally, processing the X ray image film in a darkroom. According to the detection method disclosed by the invention, the XXQ-2505 ray machine is adopted to detect power station boiler membrane panel welding joint blind area X ray and an appropriate radiating angle is selected by virtue of inclined radiation so as to achieve a purpose of detecting out defects; when radiating the membrane panel welding joint, an appropriate angle is kept between the centerline of a ray bundle and the drainage plane of the heated surface tube, so that the definition, sensitivity and welding joint opening distance of a blind area image on a photographic plate can achieve standard requirements, and assessment on defects is not affected.

The invention relates to a double-faced exposure architecture and a double-faced exposure method of a printed circuit board. The double-faced exposure architecture at least comprises an exposure frame, an aligning lens, an upper photographic plate, a lower photographic plate, a rigid clapboard and an aligning device, and the upper photographic plate and the lower photographic plate are separated by the rigid clapboard, thus avoiding scratching, and the lower photographic plate is aligned with a previously arranged exposure location of the upper photographic plate through the aligning lens, thus achieving the goal of double-faced exposure aligning of the printed circuit board.

The invention discloses an electric zoom lens for electronic monitoring systems. The electric zoom lens is suitable for sensitization devices, such as a CMOS (Complementary Metal-Oxide-Semiconductor) photographic plate or a CCD (Charge Coupled Device) chip. The electric zoom lens is provided with a first lens group with refraction, a second lens group with negative refraction, a third lens group with negative refraction, a fourth lens group with positive refraction and a fifth lens group with positive refraction, which are orderly arranged from an object space to an image space, wherein the positions of the first lens group, the second lens group and the third lens group are variable relative to the sensitization device during a zooming process, and the positions of the fourth lens group and the fifth lens group are fixed relative to the sensitization device during the zoom process. The zoom optical system provided by the invention realizes different zoom ratios under different object distances, and can realize 20x zoom in an infinity object distance and 20x zoom in a 3m object distance; and meanwhile, the optical system further has the characteristics of high resolution, low cost and long back focal length, and the like.

Disclosed is an X-ray testing method for NF-series heat-proof material products. The method includes producing a radiographic testing image quality indicator for the pre-fabricated body stage and a density unevenness standard test block for the pre-fabricated body stage, applying the internal-source eccentric single-wall transillumination technology to an X-ray machine to obtain a to-be-tested product, a photographic plate of the radiographic testing image quality indicator for the pre-fabricated body stage, and a photographic plate of the density unevenness standard test block for the pre-fabricated body stage, testing sensitivity, metal inclusions and low-density non-uniformity, producing a radiographic testing image quality indicator for the post-curing stage and a density unevenness standard test block for the post-curing stage to obtain a photographic plate, including the radiographic testing image quality indicator for the post-curing stage and the to-be-tested product, as well as a photographic plate including the density unevenness standard test block for the post-curing stage, and testing inclusions, holes, cracks and density non-uniformity to finally acquire X-ray test results of the NF-series heat-proof material products.

The invention discloses a 1.5mil circuit board-based line compensation method. The 1.5mil circuit board-based line compensation method comprises the following steps of S1, pasting a layer of curing photosensitive film which can be cured by ultraviolet light onto an outer surface of a circuit board; S2, drawing the designed circuit pattern onto a photographic plate by a photoplotler, covering the photographic plate on the circuit board pasted with the curing photosensitive film, giving out high-intensity light to irradiate the curing photosensitive film by an exposure machine; S3, etching the developed circuit board, performing dynamic compensation on the basis of universal production compensation according to circuit distribution conditions of different regions so that the width uniformityof the finished line is ensured; S5, allowing the etched circuit board to enter a film removal medium; and S6, washing and drying the circuit board. Classified compensation is performed on differentregions by employing a dynamic compensation technology, and the uniformity of the finished line can be ensured.

The invention discloses a method for producing a pre-coated photographic plate substrate by adopting an aluminum alloy which mainly includes the following components of: 0.15 to 0.30 percent of Fe, less than 0.10 percent of Si, less than 0.03 percent of Cu, less than 0.03 percent of Mn, 0.13 to 0.25 percent of Mg, less than 0.03 percent of Zn, 0.01 to 0.02 percent of Ti, the signal content of other impurities is less than 0.03 percent, the total amount is equal to or less than 0.15 percent; the Al is equal to or more than 99.45 percent; the pre-coated photographic plate is mainly produced by a cast ingot by adopting the methods of thermal rolling and cold rolling; the method of the invention adopts the methods of thermal rolling and cold rolling to roll and the adjusting of the alloy components to solve the technical difficulty that a medical foil turns soft when passes through an oven and improve the intensity of the medical foil.

The invention provides improvements in the way that holograms are created and viewed, and enables the storage of said holograms by digital means, thereby eliminating the requirement of photographic plates or emulsion. The invention also makes possible secure and robust correspondence based on holographic methods and has potential applications to the realization of holographic television, movies, computer displays, cameras, and the enhancement of web sites and virtual reality schemes.

The invention provides a design method for dust removing prompt of a PCBA and relates to the field of servers, as well as hardware and software of a PC. A dust detector composed of three parts including a photographic plate, a point light source and a light collector (comprising a photosensitive sensor) is additionally arranged on a plate card; and when reflected light collected on the photographic plate by the light collector is lower than certain limit, an prewarning electric signal is transmitted by the collector and then is sent to a central management chip of a system to prompt a user to perform dust removal, so as to realize measures for protecting the PCBA.

The invention discloses a medical film viewer capable of longitudinal and transverse orientation, wherein a lamp frame plate is arranged on one side surface of a lamp frame; a transparent plate is arranged on the side surface opposite to the lamp frame plate; several lamp tubes are arranged between the lamp frame plate and the transparent plate; a top rod is arranged at the top of the lamp frame; several longitudinal line adjusting rings are arranged on the top rod in a penetrating manner, wherein a longitudinal line is fixedly arranged under each longitudinal adjusting ring; side rods are symmetrically arranged on both sides of the lamp frame respectively; each side rod is provided with several transverse line adjusting rings in a penetrating manner; and transverse lines are fixedly arranged between longitudinal line adjusting rings respectively at the same height on two side rods. According to the medical film viewer capable of longitudinal and transverse orientation, the reference of longitudinal and transverse lines can be provided, and the observation needs of various X-ray photographic plates or CT imaging plates can be satisfied on the premise of ensuring functions of normal film viewers.

The invention provides a compressed sensing point-by-point scanning camera for the inside of divided array blocks. The camera comprises an object light source, a lens group, a DMD (Digital Mirror Device) array, a photographic plate, an A/D converter and a DSP (Digital Signal Processor). The DMD array is divided into a plurality of small square blocks in advance; the lens group shoots scenery light rays to the DMD array; the divided point-by-point scanning to the scenery light rays is realized by controlling a digital micromirror on the DMD array to turn point by point, that is, compressed sampling is respectively performed in each small square block. Original signals are reconstructed according to a reconstruction algorithm; the DMD array reflects the reconstructed scenery image subjected to point-by-point scanning on the photographic plate for imaging. The imaging speed is accelerated by means of the point-by-point scanning of the DMD array; a new shooting method with great potential application value is provided; the bottleneck of Shannon's sampling theorem is broken; an original image is reconstructed precisely from a small quantity of sampling and measuring values; the acquisition and compression of traditional data become one and the storage resource is saved.

The invention discloses a large-image-surface and high-resolution video conference optical imaging system. The large-image-surface and high-resolution video conference optical imaging system sequentially comprises a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6 and a seventh lens 7 from the object surface to the image surface, wherein the first lensis a negative-focal-length lens, the object side of the first lens 1 is a convex surface, and the image side of the first lens 1 is a concave surface; the second lens 2 is a positive-focal-length lens, the object side of the second lens 2 is a convex surface, and the image side of the second lens 2 is a concave surface; the third lens 3 is a positive-focal-length lens, and both the object side and image side of the third lens 3 are convex surfaces; the sixth lens 6 is a positive-focal-length crescent lens, the object side of the sixth lens 6 is a concave surface, and the image side of the sixth lens 6 is a convex surface; the seventh lens 7 is a negative-focal-length lens, the object surface and the image surface of the seventh lens 7 are nonspherical surfaces, and the image surface of the seventh lens 7 is provided with at least one inflexion point. The large-image-surface and high-resolution video conference optical imaging system has the advantages that the seven lenses combining nonspherical, spherical and adhering lens are adopted, the height of a photographic plate is IMC, the total focal length of the optical lenses is f, 0.4<f/IMC<0.5, and IMC>17mm; large-dimension imagingrequirements are satisfied, high-resolution imaging of 21 million pixels is achieved, and clear imaging is achieved.

The embodiment of the invention discloses a transfusion state monitoring device which comprises a liquid dropping cavity, wherein a laser transmitter is arranged at one end of the liquid dropping cavity; a photographic plate is arranged at the end of the liquid dropping cavity; the change of the liquid level in the liquid dropping cavity is judged by detecting a photographic point of laser emitted by the laser transmitter, which is protected on the photographic plate after the laser is refracted by the liquid level. The transfusion state monitoring device provided the embodiment of the invention has the advantage that false alarms are effectively reduced during monitoring of a transfusion state.

The invention relates to a particle field optical holographic high-precision reproduction collecting system and a particle field optical holographic high-precision reproduction collecting method. A beam expanding alignment unit, a particle field information carrier, an imaging lens, and a charge coupled device (CCD) are arranged on the output optical path of a laser in turn, and the CCD is connected with a computer; the sensitive face of the CCD is positioned at the rear focusing face of the imaging lens; the particle field information carrier is a holographic photographic plate carrying particle field information; a carrier positioning and moving device comprises a three-dimensional translation platform; a CCD positioning and moving device comprises a one-dimensional translation platform and a lens focusing face positioning device; the lens focusing face positioning device comprises a positioning part and a standard partition plate; and the standard partition plate is arranged on one end face of the positioning part, while the other part of the positioning part is connected with an object face side of the imaging lens. The device and the method solve the problems of low efficiency and low precision of the conventional optical path adjustment and low final data precision of the system caused thereby, realize accurate adjustment to the system optical path according to the lens imaging principle and improve the final data precision of the system.

The invention relates to a method for measuring very weak magnetic field, especially the weak magnetic field with its flux less than 10 to the power -15 Wb. The sample to be tested is made from magnetic material with thickness less than or equal to 500 nano. First, the said sample is palced on the electron microscope to take electric holograph. Then, the electric photographic plate is put to the optical Mach-Rehnder interferometer for carrying out the phase difference magnification to obtain the interference pattern. The flux of the sample to be tested can be obtained by reading out the number of the interference fringe in the interference pattern. Comparing with the prior art, the invention possesses the features of high sensitivity, measuring the magnetic leakage field and very weak magnetic field as well as validating the Ahalanov-Boehm effect.

The invention discloses a manufacturing method for a hot-stamped and transferred film with a Fresnel lens visual effect. The manufacturing method includes the steps that firstly, a lens gray scale pattern is manufactured; secondly, a control computer is used for reading each concentric circle gray scale of the gray scale pattern, and the output power of a high-energy light beam is set to be a laser which outputs different kinds of power according to control of a waveform generation circuit; thirdly, the circumference of each circle is calculated through the computer, and the circumferences are converted into stepping numbers of a rotation platform till the gray scale pattern designed in the second step is completed; fourthly, a photographic plate obtained after photoetching is subjected to developing, and etched lines are developed; fifthly, a photoetching plate is copied into a plate capable of being used for die pressing; sixthly, the die pressing plate is loaded on a die press to be subjected to die pressing; and seventhly, the plate obtained after die pressing is made into a coating film. By means of the method, the unique, effective and visual three-dimensional image-text film can be manufactured and used for achieving fake preventing of currencies, negotiable securities and products and achieving a visual impact effect of printed products.

A clamp for fixing a photographic slide and/or a photographic negative includes a carrier and a cover for fixing the slide or negative onto the carrier. The carrier includes a first guide for holding the negative, and a second guide extended from the first guide for holding the photographic slide.

The invention discloses a day-night dual-purpose zoom lens capable of eliminating a heat difference. The day-night dual-purpose zoom lens comprises a first lens group, an automatic aperture, a second lens group, an optical filter and a photographic plate. The first lens group is composed of three glass lenses. The second lens group is composed of five lenses, and at least three lenses of the second lens group are plastic aspherical lenses. According to the invention, the production cost of the lens provided by the invention is lowered, the market competitiveness of the lens is enhanced; each lens is optimally configured, and the heat difference elimination design is adopted, so that the defect that the focus drifting amount of the plastic lenses is large under high-low temperature environments is effectively overcome, and the lens provided by the invention has the advantage of stable analysis under different temperature usage conditions; in addition, the lens provided by the invention can realize triple zooming, the day-night dual-purpose function is achieved, and the resolving power can realize the image quality of three million pixels.

The invention relates to a panoramic exposure method with three-source Gamma source combination of a large-scale spherical storage tank, which adopts the irradiation with three-source bound combination, can obtain a basically even panoramic radiation field, completely satisfies the standard fog density and sensitivity requirements of photographic plates, has greatly shortened irradiation time and novel techniques, is simple, convenient, safe, reliable and environment-protective, and can improve the nondestructive examination quality. The panoramic exposure method comprises the following technical steps: a central point of the spherical storage tank is obtained by measurement, a Gamma source head is packed on a nylon belt and positioned at the central point of the spherical storage tank, and the nylon belt is fixed in centers of an upper inlet orifice and a lower inlet orifice and strung by an euphroe, thus avoiding swinging; a source tank is connected with a drive device, and source transmission pipes and a drive hose are straightly positioned with the bend radius no less than the least Phi 500; the three source transmission pipes are bound together, and under the precondition that the geometric unsharpness is ensured, three irradiation heads turn outward in a petal shape so as to reduce mutual influence, increase irradiation area and reduce fade zone.

The invention belongs to the technical field of nondestructive detection and radiographic testing, and particularly relates to an optical densitometer for automatically measuring density range. The optical densitometer for automatically measuring the density range comprises a light source control system, a light source receiving device, a track conveyor and a central control system, wherein the light source control system and the light source receiving device are oppositely arranged; a plurality of photographic films are arranged between the light source control system and the light source receiving device and positioned on a conveying track of the track conveyor; the central control system is correspondingly and electrically connected to the light source control system, the light source receiving device and the track conveyor. The invention also provides optical density calculation method. According to the optical densitometer for automatically measuring the density range and the optical density calculation method, the problems such as low efficiency, high working intensity, large measuring error and lack of standardization of a traditional densitometer at present can be solved; the concept of a linear sensing array is introduced and free from a single point sensor is avoided, so that the automatic measuring efficiency of a complete photographic plate can be greatly improved.