261 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.

This invention provides an optical imaging lens assembly comprising five lens elements with refractive power, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side surface; a second lens element with negative refractive power; a third lens element with negative refractive power; a fourth lens element with negative refractive power having at least one of the object-side and image-side surfaces thereof being aspheric; and a fifth lens element having a concave image-side surface, at least one of the object-side and image-side surfaces thereof being aspheric, and made of plastic. By such arrangement, photosensitivity and total track length of the optical imaging lens assembly can be reduced, and the aberration and astigmatism of the assembly can be effectively corrected. Moreover, high image resolution can be obtained.

An energy beam curable type ink jet printing ink comprising (A) a colorant, (B) a compound having at least one ethylenically unsaturated bond which can be polymerized by the application of an energy beam and (C) a photopolymerization initiator, whereinthe component (B) is a compound having at least one methacryloyl group as a sole polymerizable unsaturated group and the component (C) is a 2-alkyl-2-amino-2-benzyl-1-(4-morpholinophenyl)ethan-1-one.This ink has low viscosity, high sensitivity and sufficiently high film strength after curing.

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.

A technique to acquire a photoresist composition which can reduce occurrence of defects of a resist pattern after development is provided. Further, a technique to obtain a photoresist composition having excellent storage stability characteristics as a resist solution (storage stability); and a technique to obtain a photoresist composition which reduces the change of sensitivity and resist pattern size after treatment almost completely are provided. A photoresist composition containing a resin component (A), an acid-generating component (B) for generating an acid under exposure, and an organic solvent (C) is passed through a first filter 2a equipped with a first membrane having zeta potential of more than −20 mV but no more than 15 mV in distilled water of pH 7.0.

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.

A light-curing thermo-curing resin composition and a printed circuit board obtained using the same are provided, the composition has high light sensitivity and excellent curing depth in ultraviolet ray and laser exposure, thus further having great developing ability to pass through diluted alkaline aqueous solution while being excellent in storage stability and operability, so the composition is suitable for solder resisting agent. The light-curing thermo-curing resin composition comprises (A) carboxyl-containing resin, (B) mercaptobutyric acid or derivatives thereof, (C) photopolymerization initiator, (D) compounds having 2 or more of olefinic unsaturated groups in the molecules, and (E) thermo-curing components. The suitable (A) carboxyl-containing resin is preferably the carboxyl-containing resin capable of free radical polymerization and having unsaturated double bond. In addition, the (C) photopolymerization initiator is preferably oximes photopolymerization initiator (C1), particularly preferably proxetil photopolymerization initiator, aminoacetophenone photopolymerization initiator and / or acyl phosphine oxide photopolymerization initiator.

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.

A negative-type photosensitive resin composition which is good in sensitivity and resolution, a pattern forming method by the use thereof wherein a pattern which can be developed in an alkali aqueous solution, is excellent in sensitivity, resolution and heat resistance and has a good shape is obtained, and highly reliable electronic parts are provided. The negative-type photosensitive rein composition includes (a) a polymer that has a phenolic hydroxyl group at a terminal and is soluble in the alkali aqueous solution, (b) a compound that generates an acid by irradiating active light, and (c) a compound that can be crosslinked or polymerized by an action of the acid.

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.

The invention relates to a digital camera, in particular to digital camera photosensitive control and aims at solving the problem that photosensitive control parameters of the digital camera at present are fixed and cannot be intelligently adjusted. A digital camera photosensitive self-adaptation control method comprises the steps of dividing an image into a plurality of small blocks, calculating brightness values of the small blocks, setting a series of calculation comparison rules and performing extreme brightness and extreme dark light reflection control, image brightness color control, image darkness control and image gradation control on the image. The method has the advantages that the exposure time, image brightness, contrast ratio, exposure compensation and Gamma of a Sensor are controlled by calculating sensitivity of the image, accordingly the camera automatically controls different parameters of the Sensor in different photosensitive environments, the brightness of the picture shot by the digital camera is moderate by using the control method, and the user experience is improved. The digital camera photosensitive self-adaptation control method is suitable for the digital camera.

The present invention provided a radiation sensitive resin composition which has high sensitivity, can faithfully reproduce the design size of a mask pattern, is superior in adhesion to a substrate, makes it possible to obtain a satisfactory spacer shape and thickness with an exposure energy of <=1,500 J / m2, solves the problem of deposition of a photopolymerization initiator in a developing solution, and can form spacers for a liquid crystal display element which is superior also in strength and heat resistance. The radiation sensitive resin composition contains (A) a copolymer of (a1) an ethylenically unsaturated carboxylic acid and / or an ethylenically unsaturated carboxylic acid anhydride, (a2) an epoxy-containing ethylenically unsaturated compound and (a3) another ethylenically unsaturated compound, (B) a polymerizable compound having an ethylenically unsaturated bond and (C) a photopolymerization initiator, wherein the content of the photopolymerization initiator (C) is 0.1-5 pts.wt., with respect to 100 pts.wt. of the polymerizable compound (B).

The invention discloses positive image thermo-sensitive CTP printing plate material capable of resisting UV printing ink. The positive image thermo-sensitive CTP printing plate material made by high-quality aluminum plate base and double coatings comprises a plate material support body. A resin layer good in solvent resistance and alkaline solubility coats the support body. A positive image thermo-sensitive photosensitive layer coats the resin layer. The main film forming resin also called polymer binder in the resin layer is independently researched and developed by the inventor company, and the photosensitive layer is modified by traditional single-layer thermo-sensitive CTP of the inventor company. The plate material is high in photosensitivity, excellent in screen dot reduction, large in plate making operation tolerance, stable in performance and high in printing adaptability. The plate material can be specially used for UV ink printing and also be used as the long-printing-process plate material of traditional solvent ink printing, and better printing durability is achieved when the plate material is applicable to the mentioned printing after baking.

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 positive photosensitive resin composition excellent in sensitivity and resolution, characterized by comprising 100 parts by mass of (A) a hydroxypolyamide comprising repeating units represented by the general formula (1), 1 to 50 parts by mass of (B) a photoacid generator, 5 to 20 parts by mass of (C) a carboxylic acid compound having 6 to 18 carbon atoms as represented by the general formula (2), and 0.01 to 70 parts by mass of (D) an alcohol having 4 to 14 carbon atoms as represented by the general formula (3).

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 invention discloses a photosensitive resin composition, which comprises ultraviolet photosensitive prepolymer resin, an active diluent monomer, a photoinitiator and an optional coloring agent, wherein the photoinitiator is selected from at least one of an oxime ester compound as shown in a formula (I) and a derivative compound by employing the compound as shown in the formula (I) as a main body structure. The composition has high photosensibility, good developing performance, high resolution ratio and excellent sealing property with a substrate, is very suitable for preparation of a black matrix with high shading performance, a high-precision and high-quality color filter and a liquid crystal display device, and can be used in the aspects of a light spacer, a ribbed bar, a photoresist, a dry film and the like. The formula is as shown in the specification.

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.

A photosensitive resin composition which is excellent in sensitivity, resolution, and adhesion, has satisfactory hue stability with respect to coloring and color fading during dry film storage, and can be developed with an alkaline aqueous solution; a layered photosensitive-resin product including the photosensitive resin composition; a method of forming a resist pattern on a substrate with the layered photosensitive-resin product; and a use of the resist pattern. The photosensitive resin composition is characterized by comprising: (a) 20-90 mass% thermoplastic copolymer which contains comonomer units derived from an a,ss-unsaturated carboxylated monomer and has an acid equivalent of 100-600 and a weight-average molecular weight of 5,000-500,000; (b) 5-75 mass% addition-polymerizable monomer having at least one terminal ethylenically unsaturated group; (c) 0.01-30 mass% photopolymerization initiator; (d) 0.01-5 mass% phosphorous ester compound; and (e) 0.001-0.3 mass% basic dye.

The present invention provides a negative-type photosensitive resin composition capable of obtaining a cured film suppressing generation of development residues caused by a pigment and having high sensitivity and excellent heat resistance and light blocking capability. A negative-type photosensitive resin composition contains an alkali-soluble resin (A), a radical-polymerizable compound (B), a photopolymerization initiator (C1), and a pigment (D1). In this resin composition, the radical-polymerizable compound (B) contains a flexible chain-containing radical-polymerizable compound (B1), the flexible chain-containing radical-polymerizable compound (B1) contains a compound having (I) a structure derived from a compound having at least three hydroxyl groups in the molecule, (II) at least three ethylenically unsaturated double bond groups, and (III) at least one aliphatic chain, the aliphatic chain has an average molecular weight of 40 to 500, and the content of the pigment (D1) is 5 to 70 mass % of the total solid content.

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.