67results about How to "Uniform optical properties" patented technology

A stretched cellulose acylate laminate film having a skin layer containing a cellulose acylate with a total degree of acyl substitution of more than 2.7 and a core layer containing a cellulose acylate with a total degree of acyl substitution of 2.0-2.7 wherein the core layer is thicker than the skin B layer and at least one of these layers contains a retardation-controlling agent, is excellent in high expressibility, little optical unevenness and good releasability from a support.

A casting method, rather than injection molding, to produce polymer optical components and systems is provided. The casting process controls shrinkage and stress, thus providing both high bulk uniformity and high quality, accurate surfaces, by incorporating polymer films into the mold. The films may remain incorporated into the part or may optionally be removed from the part after removal from the mold. In addition, the incorporation of separately produced components within the cast part is also provided, eliminating post-casting assembly manufacturing steps.

A polarizing element includes a substrate with protruded threads, and metal thin wires provided on the protruded threads. Each metal thin wire includes a first thin wire provided to a first side surface of the protruded thread and a second thin wire provided to a second side surface of the protruded thread. Each first thin wire has a first volume. Each second thin wire has a second volume. Each metal thin wire has a third volume which is the sum of the first and second volumes. As a distance from one end of the substrate increases, the volume of each first thin wire decreases and the volume of each second thin wire increases so that the third volume is maintained within a predetermined range.

A susceptor having the most basic structure has a three-layer structure including a first and a second transparent quartz part and an opaque quartz part sandwiched therebetween. For example, the opaque quartz part is made of“foamed quartz”. In addition, the opacity of the opaque quartz part to flash light is determined to fall within an appropriate range based on the material or thickness of the opaque quartz part, taking into consideration the composition or thickness of a thin film formed on the substrate and various conditions concerning the energy of the irradiation light during flash light irradiation or the like. The stack structure may be composed of a stack of a plurality of opaque quartz layers having different opacities.

A lighting device includes a first lamp unit mountable on a first body part and a second lamp unit mountable on a second body part and movable relative to the first body part, wherein a gap is formed between the first and second lamp units, the first and second lamp units each have a housing with light sources and covered by a transparent lens, wherein the lens has a base surface for transmitting a functional light beam in the main beam direction and a side section that borders the gap and runs parallel to a gap plane and through which a side light beam enters into the gap, wherein the side section of the lens and/or a light guiding part covered by the lens has scattering elements, so that the side light beam emitted by the light source can be emitted along the gap plane in the main beam direction.

The present invention relates to a method for producing a flexible substrate. According to the method of the present invention, a flexible substrate layer can be easily separated from a carrier substrate even without the need for laser or light irradiation so that a device can be prevented from deterioration of reliability and occurrence of defects caused by laser or light irradiation. In addition, according to the method of the present invention, a flexible substrate can be continuously produced in an easier manner based on a roll-to-roll process.

The present invention addresses the problem of providing an optical film roll which exhibits an elastic modulus within the plane of the film in an angled direction in relation to the lengthwise direction thereof, is unlikely to produce a shift in the rolling of the roll even due to moisture during storage or transport thereof, and has a uniform optical value even during storage or after transport thereof. This optical film roll is a lengthwise-oriented optical film roll in which the direction (A) having the maximum elastic modulus in the plane of the film is angled in relation to the lengthwise direction thereof, and the ratio of the values of the elastic modulus (EA) in the direction (A) having the maximum value to the elastic modulus (EB) in a direction (B) perpendicular to the direction (A) is 1.4≤EA/EB. The optical film roll is characterized by having an embossed section on both ends thereof having a height within the range of 1-20μm, and in that the crushing resistance (%) stipulated by formula (1) of the embossed sections is at least 50% for the embossed sections on both ends. (Formula 1) Crushing resistance (%) = D/Do×100% (Do and D are the heights of the projections before and after applying weight to the embossed sections.)

The present invention relates to a polarized light board structure which is provided with a polarized light layer, a first optical film and a second optical film, the first optical film is formed above the polarized light layer and the second optical film is formed below the polarized light layer, wherein, at least one optical film selected from the first optical film and the second optical film is polymethyl methacrylate optical film. Into the bargain, the optical film is formed by pasting the mixed solution to the polarized light board and doing heat treatment when penetrating the mixed solution and distributing on the substrate to prepare for making have finished, or the optical film is formed by penetrating the mixed solution and distributing on the substrate and doing thermal treatment.

The invention discloses borosilicate fluorescent glass with high heat conductivity coefficient which is prepared from matrix glass powder and Ce: YAG fluorescent powder. The matrix glass powder is prepared from the following components: 0-15mol% of SiO2, 20-55mol% of B2O3, 10-50mol% of ZnO, 0-15mol% of TiO2, 5-20mol% of Na2O and 0-5mol% of Li2O; and the doping amount of the Ce: YAG fluorescent powder is 1-10wt% of the total weight of the matrix glass powder. The invention also provides a preparation method of the fluorescent glass. A fluorescent glass sheet, serving as a fluorescence conversion material of a white-light LED, has the advantages of high thermal conductivity and good thermal stability. Compared with the traditional encapsulation modes of silica gel and epoxy resin, the borosilicate fluorescent glass with the high heat conductivity coefficient is good in environment stability, does not have the problem of ageing, yellowing, color decaying, light efficiency lowering and the like and is particularly suitable for certain high-power LED illumination devices.

The main object of the invention is to provide a polarized light irradiation apparatus capable of providing a uniform alignment ability for an alignment film without using a highly parallelized light, and capable of conducting a photo-alignment in a larger area efficiently, and having an excellent durability. To this end, there is proposed a polarized light irradiation apparatus comprising: a light source; a projection device for projecting a light from the light source as a projection light including a non-parallel light; a polarizer for passing the projection light therethrough and comprising one glass plate disposed at a tilt by Brewster angle relative to an incident direction of a center part of the projection light, or comprising a plurality of glass plates disposed in parallel with each other at a predetermined interval and at a tilt by Brewster angle relative to the incident direction of the center part of the projection light; and a substrate transportation device for transporting an irradiation target substrate in a direction perpendicular to a straight line including a projection image which is obtained by projecting an incident plane of a light entering at the Brewster angle among the projection light onto the substrate.

This invention provides a method for producing an optical film, the method comprising a rubbing treatment step of rubbing the surface of a lengthy plastic film F with a rubbing roll 4 obtained by winding a raised fabric 4a, an application step of applying a liquid crystalline molecule to the surface of the plastic film processed through said rubbing treatment step and a fixing step of fixing said applied liquid crystalline molecule. In the rubbing treatment step, the lengthy plastic film is supported and conveyed by a conveyer belt 3 having a metal surface, and plural backup rolls 5 which support the underside of the conveyer belt supporting the plastic film are disposed opposite to said rubbing roll, to set a rubbing strength RS defined by the following equation (1) to 2600 mm or more (more preferably 3400 mm or more).

The present invention provides a thermoplastic resin film which has uniform optical properties and can be used for a high quality functional film and a method for producing the same to suppress uneven thickness in the machine direction of a film and streaks in the film. The method for producing a cellulose acylate film (12), includes the steps of melting a thermoplastic resin in a single screw extruder (22), discharging and feeding the molten resin to a die (24) through the extruder (22), extruding the molten resin from the die (24) in the form of a sheet, and solidifying the molten resin by cooling, wherein the extruder has a feed section (A), a compression section (B) and a metering section (C) and transport efficiency ηF of the thermoplastic resin in the feed section (A) is 0.2 to 0.7.

The present invention provides a method of manufacturing a thermoplastic resin film comprising the steps of: extruding a molten thermoplastic resin from a die in a form of sheet; cooling and solidifying the thermoplastic resin sheet by sandwiching the sheet between a pressurizing/cooling roller and a press roller; and further cooling and solidifying the thermoplastic resin sheet while transferring the thermoplastic resin sheet by a plurality of cooling rollers, wherein the temperature of each of the cooling rollers is set at within a range of ±3° C. relative to sheet temperature of the thermoplastic resin sheet in contact with the cooling roller; at the same time, the sheet temperature of the thermoplastic resin sheet when removed from the cooling roller arranged most downstream of the cooling rollers is set to be equal to or less than a glass transition temperature Tg(° C.) of the thermoplastic resin −15° C.

The invention discloses a multi-wavelength component for the fiber optic communication. The component is used for multi-wavelength laser coupling for single optical fiber transceiving communication and comprises an emitting portion, a receiving portion, an optical coupling portion and an optical fiber terminal. The optical fiber terminal is provided with a straightening portion used for straightening the laser; the emitting portion comprises more than one emitting terminal comprising laser chips generating laser and straightening lens groups; the wavelengths of laser generated by the laser chips of the emitting terminals are different; the straightening lens groups are located in the light emitting ports of the emitting terminals, and the laser generated by the laser chips is concentrated through the straightening lens groups before emitting to the optical coupling portion through the light emitting ports. An optical path component is optimized, the brightness and parallelism of laser emitted through the emitting portion can be guaranteed well, the optical path component is easy to package and adjust, and the multi-wavelength laser coupling capability of an optical coupling component can be improved.

The invention relates to a super-hard wear-resistant transparent film layer material which is compounded on a nano scale and takes the silicon-doped carbonized polymer point as a construction element and a preparation method of the super-hard wear-resistant transparent film layer material, and belongs to the technical field of preparation of super-hard wear-resistant scratch-resistant transparent film materials. The preparation method comprises the following steps: weighing propylamino silsesquioxane and citric acid in a molar ratio of 1: (0.1-4), dissolving the propylamino silsesquioxane and the citric acid in deionized water, and then carrying out hydrothermal reaction at 160-200 DEG C for 3-8 hours; then naturally cooling to room temperature to obtain a faint yellow transparent Si-CPDs aqueous solution, and filtering by using a 0.22 mu m polyether sulfone filter membrane to obtain Si-CPDs curing liquid with silicon hydroxyl on the surface; and spin coating, dip coating or spray coating the curing liquid onto the surface of a glass slide subjected to Plasma treatment for 3-5 minutes, and curing for 0.5-3 hours at the temperature of 60-200 DEG C to obtain the super-hard wear-resistant transparent film layer. The film material can be used for preparing surface hard wear-resistant protective layers of displays, transparent optical devices and solar cells.

A rear end of a preceding film and a front end of a trailing film are overlapped with an overlap length Lo. Each of a pair of welding heads has a contact surface and a film heating surface. The contact surface has a length Lp in a conveying direction. The film heating surface has a length Lh in the conveying direction. The lengths Lh, Lo, and Lp satisfy Lh<Lo<Lp. Center portions of an overlapped portion, the contact surface, and the heat surface are approximately aligned with each other in the conveying direction. The overlapped portion is sandwiched by the welding heads in an overlapping direction C. The overlapped portion is welded through the film heating surfaces such that temperatures of the films at both ends of each contact surface in the conveying direction are heated to a temperature at which the films are welded.

An opaque area is formed in a sidewall portion of a susceptor by stacking a material that is transparent to flash light and a material that is opaque to the flash light to form the sidewall portion or coating a surface of the opaque material with the transparent material. A top surface of the opaque area in the sidewall portion of the susceptor is designed to have a predetermined positional relationship with a top surface of a substrate; the top surface of the opaque area is set at the same position as that of the top surface of the substrate or higher than the top surface of the substrate by a predetermined height. Thus, obliquely incident flash light is absorbed or irregularly reflected by the opaque quartz portion, surrounding an excavated portion of the susceptor.