245 results about "Photosensitiveness" patented technology

This invention provides an image capturing lens assembly, in order from an object side to an image side comprising: a first lens element with positive refractive power having a convex object-side surface; a second lens element; a third lens element; a fourth lens element having at least one of an object-side surface and an image-side surface thereof being aspheric; a fifth lens element with positive refractive power having a convex image-side surface, at least one of an object-side surface and the image-side surface thereof being aspheric, and the fifth lens element is made of plastic; and a sixth lens element with negative refractive power having a concave image-side surface, at least one of an object-side surface and the image-side surface thereof being aspheric, and the sixth lens element is made of plastic. By such arrangement, the photo-sensitivity and the total track length of the image capturing lens assembly can be reduced. Furthermore, the aberration and astigmatism of the assembly can be effectively corrected for obtaining higher image resolution.

The object of the present invention is to provide a photoconductor that is highly sensitive, stable in image quality under repeated usages, and affords prolonged life. In order attain the object, a photoconductor is provided that comprises a charge generating layer, a charge transporting layer, and a crosslinked charge transporting layer, on an substrate in order, the charge generating layer contains titanyl phthalocyanine crystal particles that exhibit a highest peak at 27.2°, main peaks at 9.4°, 9.6° and 24.0°, a peak at 7.3° as the lowest angle, and with no peaks in a range between 7.3° and 9.4°, and with no peak at 26.3° as Bragg 2θangles (±0.2°) in terms of CuK-α characteristic X-ray wavelength at 1.542 Å, and the averaged primary particle size of the titanyl phthalocyanine crystal particles is 0.25 μm or less, and the crosslinked charge transporting layer contains a reaction product of a radical polymerizable monomer having three or more functionalities and no charge transporting structure and a radical polymerizable compound having one functionality and a charge transporting structure, and the thickness of the crosslinked charge transporting layer is 1 to 10 μm.

An offset plate sensitive to UV or visible light, prepared simply and imaged digitally therewith in a CTP method, and also processed in a simple manner. The plate is provided as a photopolymer plate with increased sensitivity, and is used in a simple imaging-on-press system, using the surface of a lithographic printing cylinder itself as a plate substrate. The method of preparing the printing plate begins by applying a photosensitive liquid coating to the substrate, digitally imaging the coated substrate, using an actinic light source to polymerize portions of the liquid coating in accordance with the imaging, and washing the liquid.

The invention discloses an ultraviolet laser solidification rapid-prototyping photosensitive resin and a manufacture method thereof. The ultraviolet laser solidification rapid-prototyping photosensitive resin comprises the following components in mass ratio: 5-80% of epoxy resin, 0-65% of oxetane compound, 1-12% of cationic initiator, 1-40% of hydroxy organic compound, 0-55% of unsaturated oligmer containing C-C double bonds, 0-35% of unsaturated monomer containing C-C double bonds, 0-20% of glycidyl ether or epoxy diluent with low molecular weight and 0-10% of free redical type photopolymerization initiator. The manufacture method comprises the following steps: mixing the raw materials in the mass ratio, heating at 20-80DEG C, and stirring for 5-120 minutes to obtain transparent faint yellow uniform liquid. The photosensitive resin disclosed by the invention has good photosensitiveness, and the critical exposure Ec is less than 15mJ/cm<2>; a formed part has high precision; the camber factor CF(6) of the formed part is between-0.01 and 0.01; and the camber factor CF (11) is between -0.03 and 0.03. The photosensitive resin disclosed by the invention can be directly manufactured into any part with complex shape, high precision and low cost.

The invention relates to a terminal with a camera. The terminal comprises a linkage shaft, the camera, a sliding rod main shaft of which one end is connected with the camera, a first driving device which drives the linkage shaft to move up and down and a second driving device which drives the sliding rod main shaft to rotate; the linkage shaft is provided with a first through hole, the end, far away from the camera, of the sliding rod main shaft penetrates through the first through hole, and the sliding rod main shaft is further provided with an abutting connection portion which is located over the linkage shaft and abuts against the linkage shaft. According to the shooting demands, the up-and-down moving position of the camera is adjusted through the first driving device, the shooting angle of the camera is adjusted through the second driving device, the camera can rotate within 360 degrees, the view angle of the camera is greatly increased, and therefore the problems, affecting shooting effects, that for a built-in camera on a current terminal, the shooting angle is limited, light sensibility is poor, and the light-through amount is insufficient are solved.

The invention provides liquid crystal alignment agents for photo-alignment, liquid crystal photo-alignment layers, and liquid crystal displays using the same. The liquid crystal alignment agents contain tetracarboxylic dianhydride mixture including cyclopentane tetracarboxylic dianhydride, which is reacted with specific diamine to obtain polyamide acid or its derivatives. The liquid crystal alignment agents are applied to form a photo-alignment film with excellent alignment property and high light transmittance, because of light sensitivity of the chemical change caused by illumination. In addition, the photo-alignment film is applied in liquid crystal displays, the electrical characteristics required by liquid crystal alignment film is satisfied, the voltage maintaince ratio is high, the iron amount is little, the remained charge amount is little, etc.

This invention provides an image capturing optical system in order from an object side to an image side comprising: a first lens element with positive refractive power having a convex object-side surface; a second lens element; a third lens element; a fourth lens element with both the object-side and image-side surfaces thereof being aspheric, and the fourth lens element is made of plastic; and a fifth lens element with negative refractive power, both the object-side and image-side surfaces thereof being aspheric, at least one inflection point is formed on at least one of the object-side and image-side surfaces thereof, and the fifth lens element is made of plastic. By such arrangement, photosensitivity and total track length of the system can be reduced, and better image quality can be obtained.

A positive-type photosensitive resin composition comprising component (A): an alkali-soluble resin having a functional group which undergoes heat crosslinking reaction with a compound of component (B), a functional group for film curing which undergoes thermoset reaction with a compound of component (C), and a number average molecular weight of 2,000 to 30,000; component (B): a compound having two or more vinyl ether groups per molecule; component (C): a compound having two or more blocked isocyanate groups per molecule; component (D): a photoacid generator; and component (E): a solvent. A production process of the positive-type photosensitive resin composition comprising mixing the above-mentioned components and maintaining the mixture at a temperature higher than room temperature. A cured film manufactured by using the positive-type photosensitive resin composition. The composition has a high sensitivity and little film reduction of unexposed part, maintains a high transmittance even after baking at a high temperature or resist stripping treatment, and cause no reduction of film thickness. Therefore, the composition provides a cured film suited as a film material for several displays.

The present invention is directed to a light sensitivity calibration method and an imaging device. An exposure step is performed to obtain a light sensitivity according to a predetermined time. A time adjustment step is performed to adjust the predetermined time according to the light sensitivity, thereby obtaining an adjusted time. The predetermined time is replaced with the adjusted time and the exposure and time adjustment steps are repeatedly performed, until the adjusted time converges within a predetermined range.

In a display portion of a liquid crystal display device, the dead space corresponding to a unit pixel is reduced while the aperture ratio of the unit pixel is increased. One amplifier circuit portion is shared by a plurality of unit pixels, so that the area of the amplifier circuit portion corresponding to the unit pixel is reduced and the aperture ratio of the unit pixel is increased. In addition, when the amplifier circuit portion is shared by a larger number of unit pixels, a photosensor circuit corresponding to the unit pixel can be prevented from increasing in area even with an increase in photosensitivity. Furthermore, an increase in the aperture ratio of the unit pixel results in a reduction in the power consumption of a backlight in a liquid crystal display device.

It is an object of the present invention to provide a novel photo-curing composition which can be cured by light of a wide wavelength region including ultraviolet light or visible light, has such high sensitivity that it can be sufficiently cured by exposure to a small amount of light, can favorably form a fine pattern when used as a resist and provides a cured product having excellent heat resistance and insulating properties, and a negative photoresist composition using the photo-curing composition. It is another object of the present invention to provide a process for highly accurately and easily producing a polyimide thin film used for a medical instrument, and a medical instrument having the polyimide thin film. The photo-curing composition of the present invention comprises (A) a carbon cluster and/or its derivative, having a photosensitizing function, (B) a compound having plural heterocyclic rings in a molecule, and if necessary, (C) a photo-insensitive resin.

An imaging section 13 allows multiple pixels generating a pixel signal based on incident light to act as polarization pixels each having one of multiple polarizing directions. A polarization element 11, attached on the side of the incidence plane side of the imaging section 13, causes linearly polarized light to enter the imaging section 13. A control section 20, for example, controls a sensitivity detecting section to detect a sensitivity level in each of the polarizing directions of the polarization pixels in the imaging section 13. An image signal processing section 14 performs gain adjustment on the polarization pixels on the basis of the sensitivity level detected in each of the polarizing directions by the sensitivity detecting section, and carries out image composition using the gain-adjusted image signals to generate a captured image having wide dynamic range with minimum motion blur.

A chemically amplified positive resist composition comprising a specific 2,4,6-triisopropylbenzenesulfonate compound as a photoacid generator, a polymer which changes its solubility in an alkaline developer under the action of acid, and a basic compound has a high sensitivity, a high contrast of dissolution of resist film, a high resolution, and good storage stability.

The present invention relates to a photosensitive resin composition, a preparation method thereof, and a dry film resist comprising the same. More particularly, the photosensitive resin composition of the present invention is directed to a photosensitive resin composition including a) an alkali-soluble acrylate resin, b) a cross-linking monomer having at least two ethylenic double bonds, and c) a phosphinoxide based photopolymerization initiator and an acridon based photopolymerization initiator.

According to the photosensitive resin composition and the dry film resist, it is easy to finely pattern using a laser direct image (LDI) with high density and the dry film has excellent sensitivity, resolution, and adhesiveness to the substrate.

The invention discloses a high photosensitive real time polarization imaging minimal deviation array and an imaging device thereof. The deviation array comprises a plurality of minimum period units which are closely arranged successively, wherein each minimum period unit includes four polarization units with different polarization angles; the four polarization angles are respectively 0DEG, 45DEG, 90DEG or 135DEG; and the lens of each polarization unit includes a plurality of polarizing films and non-polarized lenses so that the problem that in the prior art insufficient photosensibility makes the obtained polarized image have great error when the light is low or the time of exposure is not sufficient can be solved. The invention also discloses an imaging device and a combination method of pixels based on a high photosensitive real time polarization imaging minimal deviation array, and can solve the saturation problem for different types of lenses.

The invention relates to synthesis of N-phenyl maleimide-containing photosensitive acrylic resin and an application thereof in a negative photoresist, and belongs to the technical field of ultraviolet curing. Alkaline soluble photosensitive acrylic resin is synthesized by a two-step method, wherein a ring-opening reaction is carried out on a reaction monomer N-phenyl maleimide under the alkaline condition, so that the alkaline solubility of a polymer is increased. A carbon-carbon double bond is introduced into the polymer, so that the photosensitiveness of the polymer is improved. According to the synthesis and the application of the N-phenyl maleimide-containing photosensitive acrylic resin, which is disclosed by the invention, the reaction condition is easy to control, the monomer used is simple in structure, and the polymer is excellent in performance, so that the resin has a good performance in application of the negative photoresist. The structure of the polymer is as shown in the specification, wherein R1-R4 are independently H or CH3, R5 is C1-C4 alkyl, and R6 is benzyl, cyclohexyl and isobornyl.

The invention discloses a photosensitive resin composition and a liquid crystal display applying the same, relating to the field of manufacturing of the liquid crystal display and solving the problem that the display performance of the liquid crystal display is affected due to the poor surface smoothness and adhesion force of an existing photosensitive resin composition. According to the photosensitive resin composition provided by the embodiment of the invention, the adhesion property of the composition is promoted because 0.005%-10% of adhesion promoter is adopted and is the combination of a silane coupling agent and an acid ester adhesion promoter, and the surface smoothness of the composition is improved because 0.01%-2.5% of wetting and leveling agent is adopted. Meanwhile, the photosensitive resin composition provided by the embodiment of the invention has the advantages of high photosensitiveness, good film uniformity and excellent mechanical properties and the like, and is mainly used for manufacturing liquid crystal display.