460 results about "Anti reflective" patented technology

To provide an optical unit which is used inside of a laser oscillator of an external resonance type and capable of suppressing an output loss during external oscillation.SOLUTION: An optical unit 60 comprises a FAC lens array 63 and a beam twister array 64. A second surface 63b of the FAC lens array 63 includes a curvature part. A first surface 63a of the FAC lens array 63 and third and fourth surfaces 64a and 64b of the beam twister array 64 are flat surfaces. A first antireflection layer AR1 of a first reflection factor is provided on the flat surface, and a second antireflection layer AR2 of a second reflection factor is provided on the second surface 63b. The first and second reflection factors are lower than a predetermined reflection factor, and the second reflection factor is higher than the first reflection factor. A fluctuation rate of the reflection factor with respect to film thickness fluctuation of the second antireflection layer AR2 is smaller than that of the first antireflection layer AR1.SELECTED DRAWING: Figure 7B

A display device includes a substrate, a transistor disposed over the substrate, a first electrode pad electrically connected to the transistor, a first connector disposed on the first electrode pad, an anti-reflection portion arranged around the first connector, and a light-emitting element electrically connected to the first electrode pad through the first connector. Additionally, each of the first connector and the anti-reflection portion includes a first material, where a density of the first material included in the first connector is greater than a density of the first material included in the anti-reflection portion.

The invention discloses a device and a method for testing initial velocity and distribution of fragments of a warhead, and the device is characterized in that a missile rack is arranged in a light filtering protection device, and is used for fixedly installing the warhead; the light filtering protection device is arranged between the high-speed camera laying room and the anti-reflection background, located on one side of the lens axis of the high-speed camera and used for enabling fragments generated by warhead explosion to penetrate through the space between the high-speed camera laying room and the anti-reflection background to shield explosion fire light and detonation products. The phenomenon that the lens of the high-speed camera is covered in the light curtain area of the explosion flame to cause overexposure is avoided, so that fragment flying images can be shot at a short distance. According to the testing device, explosion fire light is weakened through the light filtering protection device, the concentration of detonation products flying along with fragments is reduced, and therefore the fragment scattering process can be shot at a short distance, axial distribution of the initial speed of the fragments is directly calculated, and the fragment scattering angle is obtained.

Provided is a glass laminate including: a glass substrate having a first main surface and a second main surface; a functional layer provided on a first main surface side of the glass substrate and including any one or more selected from an antiglare layer, an antireflection layer, and an anti-finger print layer; and a colored layer provided on a second main surface side of the glass substrate and having a hole-formed region in which a plurality of holes are provided, in which the hole-formed region has a visible light transmittance of 5% or more.

An anti-reflection film X according to the present invention comprises: a base material film (10); an adhesion layer (21) on the base material film (10); and an anti-reflection layer (22) on the adhesion layer (21). The anti-reflection layer (22) includes: a high refractive index layer (22a) in contact with the adhesion layer (21); and a low refractive index layer (22b) on the high refractive index layer (22a). The surface roughness Sa of the surface (22A) on the opposite side of the anti-reflection layer (22) to the base material film (10) is 4.5 nm or less. In a cross-sectional view of the anti-reflection film X in the thickness direction H, the ratio (L2 / L1) of a second interface length L2 at the interface between the high refractive index layer (22a) and the low refractive index layer (22b) to a first interface length L1 at the interface between the base material film (10) and the adhesion layer (21) is 1.10 or more.

Suppresses reflection from a circuit board including a light-transparent insulating film formed on an interlayer wiring to easily identify an alignment mark formed on a probe. The probe card comprises a circuit board 103 on which an insulating film 304 and an electrode pad 3 are formed and a probe 5 attached onto the electrode pad 3. The probe 5 has an alignment mark 7 identifiable from an opposite side of the circuit board 103. The alignment mark 7 is positioned outside of the electrode pad 3 on the circuit board 103. The insulating film 304 is a light-transmissive thin film covering an interlayer wiring 314. An anti-reflection film 6 with lower light transmittance than the insulating film 304 is formed in some regions on the insulating film 304. The anti-reflection film 6 is formed on a position corresponding to the alignment mark 7 and a region surrounding the position.

The utility model discloses a touch display screen and electronic equipment, which is characterized in that the refractive index between a glass panel and a touch function layer is continuously changed along the depth direction by arranging a moth eye micro-nano structure and an anti-dazzle micro-nano structure, so that the screen surface reflection phenomenon caused by the sharp change of the refractive index is obviously reduced; and finally, the reflection phenomenon of the whole screen is reduced. Compared with the prior art, the anti-reflection effect of the touch display screen can be remarkably improved, the contrast ratio of the display screen is enhanced, and therefore the display effect of the display screen is improved.

To provide a cover glass having an antireflection layer which is excellent in surface hardness and adhesion to a curved face area existing on a main surface of a glass base body, and a method for manufacturing a cover glass, and a display device.SOLUTION: A cover glass for a display device includes a glass base body which has a first main surface and a second main surface, where at least a part of the first main surface is a curved face area, an adhesive layer which is arranged on the first main surface of the glass base body, and an antireflection layer which is arranged on the adhesive layer, wherein the antireflection layer contains a resin component, and the adhesive layer contains an acrylic resin as a main component, and further contains a silane coupling agent.SELECTED DRAWING: None

The invention relates to a glass cover plate which comprises a light-emitting surface and a side surface adjacent to the light-emitting surface, a first area on the side surface is provided with an anti-reflection structure, and the anti-reflection structure comprises a glass ceramic structure. According to the glass cover plate, the anti-reflection structure is arranged in the first area of the side face, abnormal reflection of the side face of the glass cover plate is reduced, the anti-reflection structure is a glass ceramic structure, the edge strength of the cover plate can be effectively improved, and the mechanical reliability of the whole machine is improved. The invention further relates to a display module and a manufacturing method of the glass cover plate.

To provide an antireflection film that has a good antireflection characteristic, and which is good for molding due to its high fracture elongation, hardly whitened when elongated, and suitable for in-mold molding and out-mold molding, and a molded article using the antireflection film.SOLUTION: Provided is an antireflection film in which a hard coat layer and a low refractive index layer are laminated on a light-permeable base film in the order stated, and the low refractive index layer is a cured substance of a low refractive index resin composition containing urethane (meth)acrylate, a hollow silica, an alumina particulate, a surface additive, and a photoinitiator. The urethane (meth)acrylate contains urethane acrylate that has a structure in which diisocyanate reacted with ethylene glycol and isophorone diisocyanate is further reacted with pentaerythritol triacrylate, and 9 or less functional urethane (meth)acrylate.SELECTED DRAWING: None

A head-mounted device may have left-eye and right-eye optical modules that may have a display that creates an image and a corresponding lens that provides the image to an eye box for viewing by a user. The optical modules each include a lens barrel to which the display and lens of that optical module are mounted and a head-mounted optical module gaze tracking system. The gaze tracking system may have light-emitting devices such as light-emitting diodes that emit light at a given near infrared wavelength and may operate through the lens and a removable supplemental lens. The supplemental lens may be a prescription lens and may have an antireflection portion that reduces the reflectance of the lens across visible and near infrared wavelengths. The antireflection portion may be a thin-film interference coating or a moth-eye portion. In this way, the gaze tracking system may operate through the removable supplemental lens.

To provide a reflection prevention film with high resistance to a laser beam.SOLUTION: A reflection prevention film 10 is provided in a manner to cover a light incident and / or emission surface of an optical component 20 for a laser beam with a wavelength λ. The reflection prevention film 10 includes a film body 11 and an undercoat layer 12 laid on the side of the optical component 20. The optical film thickness of the undercoat layer 12 is less than λ / 2.SELECTED DRAWING: Figure 1

Provided is an antireflection film having excellent scratch resistance while using a fluorine compound as a binder component of a low refractive index layer. An optical laminate according to the present invention comprises a low refractive index layer on the outermost surface on one surface side of a transparent base material. The low refractive index layer contains a binder resin and solid particles. The average film thickness T1 in a portion where the solid particles of the low refractive index layer are not present and the average particle diameter D2 of the solid particles satisfy the condition 1.0 ≤ D2 / T1 ≤ 2.0. The number of the solid particles in the low refractive index layer is 8 to 320 per 25 μm2.

Provided are: an antireflective film which has low haze and excellent antiglare properties and in which reductions in antiglare properties when viewed obliquely are suppressed; and an image display device using the antireflective film. The antireflective film is characterized in that formula (A) is satisfied when the maximum value of the relative value of the amount of reflected light with respect to the amount of incident light incident at an incidence angle of 30° is defined as x, the maximum value of the relative value of the amount of reflected light with respect to the amount of incident light incident at an incidence angle of 60° is defined as y, the width of the light receiving angle at which the relative value of the amount of reflected light is 1 / 10 or more of the maximum value x is defined as α, and the width of the light receiving angle at which the relative value of the amount of reflected light is 1 / 10 or more of the maximum value y is defined as β.　Formula (A): β / α ≥ 0.95

The present invention provides an optical member and a method for manufacturing the same, the method comprising: a removal step for partially removing an antireflection film having a multilayer structure in which a low-refractive-index layer and a high-refractive-index layer are laminated, the antireflection film being formed so as to cover an optical surface of an optical substrate, by irradiation with an ultra-short pulse laser light, and performing non-heat processing on the antireflection film by irradiation with an ultra-short pulse laser light to form an antireflection film having a multilayer structure in which a low-refractive-index layer and a high-refractive-index layer are laminated; the pulse width of the ultra-short pulse laser is 0.1 picosecond or more and less than 100 picoseconds, and in the removal step, the ultra-short pulse laser is irradiated to remove the low refractive index layer, which is the outermost layer of the multilayer structure, or the low refractive index layer, which is the outermost layer, and the conductive layer, which is a layer immediately adjacent to the low refractive index layer. The non-heating processing is a processing for suppressing thermal damage to the high refractive index layer, which is a lower layer of the conductive layer, and the processing for suppressing thermal damage is a processing in which the ratio t1 / t2 of the thickness t1 of a portion removed by the removal step to the thickness t2 of a portion not removed in the high refractive index layer is within the range of 0.90-1.00.

Provided in an aspect of the present invention is a transparent laminate (10) including a functional layer (12) and a low-refractive-index layer (13) having a refractive index lower than the refractive index of the functional layer (12), wherein the surface (13A) of the low-refractive-index layer (13) is the surface (10A) of the transparent laminate (10), the surface (10A) of the transparent laminate (10) is not fogged as tested in an anti-fogging ability test, and the absolute value ΔY1 of a difference in the luminous reflectance Y of the surface (10A) of the transparent laminate (10) between before and after the anti-fogging ability test is 0.2% or less.

An anti-reflective film and a display device including the same is provided. The anti-reflective film includes a first refractive layer and a second refractive layer disposed on the first refractive layer. A refractive index of the first refractive layer is greater than a refractive index of the second refractive layer. The first refractive layer includes a first sub-layer and a second sub-layer disposed on the first sub-layer. A first nano-composite layer is formed between the first sub-layer and the second sub-layer. The first nano-composite layer includes a material formed by bonding a material of the first sub-layer with a material of the second sub-layer. A thickness of the first sub-layer is at least 1.2 times larger than a thickness of the second sub-layer. The thickness of the second sub-layer is less than 5 nm.

An ophthalmic article having a coating system that provides anti-reflective and easy-to-clean properties to the ophthalmic article. The coating system includes alternating layers of a low refractive index metal oxide and a high refractive index metal oxynitride and a corresponding high refractive index metal oxide. When at least one layer of high refractive index metal oxynitride is encapsulated between two layers of low refractive index metal oxide, the coating system provides a favorable surface energy for the ophthalmic article.

A display device (100) can include an antireflection pattern (152) or a column spacer (154) positioned between a light-emitting diode (D) and a bank layer (150), wherein the antireflection pattern (152) or the column spacer (154) contains a blue dye (135b). The blue light reflected by the antireflection pattern (152) or the column spacer (154) is barely perceptible to the human eye, thus helping to reduce visible spots such as rainbow mura caused by external light reflections. Furthermore, the blue light emitted by the light-emitting diode (D) can pass through the antireflection pattern (152) and / or the column spacer (154), thereby increasing the intensity of the transmitted light. This can improve image quality while minimizing brightness loss.

The present invention relates to a variable transmittance optical laminate and a sunroof comprising the same, the variable transmittance optical laminate comprising: a dimming laminate comprising an electric field-driven liquid crystal between polarizing plates; and a shutter-type film disposed on at least a portion of the indoor side of the light-dimming laminate, the shutter-type film being formed by laminating two or more layers and including a light-shielding pattern, and the light-shielding pattern being disposed so as to face the indoor side. The variable-transmittance optical laminate according to the present invention exhibits an excellent anti-reflection function without reducing the transmittance of external light by means of a shutter-type film comprising a light-shielding pattern protruding toward the indoor side and having two or more layers laminated therein.

To provide an antireflection member which not only has a low reflectance, but also is enhanced in scratch resistance, and an image display device comprising the antireflection member. An antireflection member 100 comprising a low refractive index layer 130 on a transparent substrate 110, in which the low refractive index layer 130 includes a binder resin and silica particles 132 and 134, a ratio of Si element attributed to the silica particles, obtained by analysis of a surface region of the low refractive index layer 130 by X-ray photoelectron spectroscopy, is 10.0 atomic percent or more and 18.0 atomic percent or less and a ratio of C element under the assumption that the ratio of Si element is defined to be 100 atomic percent is 180 atomic percent or more and 500 atomic percent or less.

The lens unit includes: a plurality of lenses; and a cylindrical housing member that houses the plurality of lenses. The plurality of lenses are arranged in order from the opening of the housing member, and the outermost lens, among the plurality of lenses, located on the opening side of the housing member includes: a plastic lens; an anti-reflection film disposed on at least one surface side of the plastic lens; and a hard coating layer between the plastic lens and the antireflection film. The lens unit further includes a light shielding member that shields an outer edge of the outermost lens.

A display device includes a display panel including a peripheral region adjacent to a light-emitting region, and a reflection preventing facing the display panel. The reflection preventing layer includes a light-blocking pattern corresponding to the peripheral region and defining an opening corresponding to the light-emitting region, a color filter in the opening of the light-blocking pattern, and a protruding pattern corresponding to the light-blocking pattern.

This quantum cascade laser device is provided with a QCL element and a package. A side wall of the package is provided with a light emission window through which the laser light emitted from the QCL element passes. The light emission window is configured from a small-diameter hole, a large-diameter hole larger than the small-diameter hole, an annular countersink surface connecting the small-diameter hole and the large-diameter hole, and a window member disposed inside the large-diameter hole. The incident surface of the window member has a first region provided with an anti-reflection film, and a second region formed in a ring shape so as to surround the first region at a distance from the first region and metallized. The second region is joined to the countersink surface by a solder member.

The present technology relates to: a hydrophilic film used for, for example, a hydrophilic coating of an optical component; an antireflective film; a camera; and a film formation method. The purpose of the present technology is to provide: a hydrophilic film that has excellent optical transparency and abrasion resistance and that can be reversibly hydrophilized; an antireflective film; a camera; and a film formation method. A hydrophilic film according to the present technology comprises a substance in which a silicon oxide and a metal oxide having a structure represented by M2O3 are compounded, wherein M is a metal element. In the hydrophilic film according to the present technology, polarization occurs between oxygen atoms and atoms of the metal element, and the atoms of the metal element are negatively charged.

A pellicle for a reflective photo mask includes a frame, a core layer having a front surface and a rear surface, and disposed over the frame, a first capping layer disposed on the front surface of the core layer, an anti-reflection layer disposed on the first capping layer, a barrier layer disposed on the anti-reflection layer, and a heat emissive layer disposed on the barrier layer.

To provide an anti-reflective film having superior scratch resistance compared to conventional films, and an active energy ray curable composition for obtaining the anti-reflective film that exhibits excellent temporal stability. [Solution] An anti-reflective film having a laminated structure in which a light-transmitting substrate, a high refractive index layer (α), and a low refractive index layer (β) are arranged in this order, wherein the high refractive index layer (α) is a cured product of an active energy ray curable composition, and the active energy ray curable composition comprises a compound (A) having three or more (meth)acryloyl groups, a compound (B) having a silsesquioxane skeleton, metal oxide particles (C) with a refractive index of 1.70 to 2.72, and a photopolymerization initiator (D). (However, compound (A) excludes compound (B).)

The purpose of the present invention is to provide: an optical adhesive composition which is suitable for the production of a self-luminous display device such as a Mini / Micro LED display device in which the contrast and anti-reflection function of a metal wiring or the like are improved, and which has excellent level difference absorbability and processability; and an optical laminate. The optical adhesive composition according to the present invention contains a (meth) acrylic block copolymer and a colorant, and is characterized in that: the (meth) acrylic block copolymer has a high Tg segment having a glass transition temperature of 0 DEG C to 100 DEG C (inclusive) and a low Tg segment having a glass transition temperature of-100 DEG C to less than 0 DEG C; the (meth) acrylic block copolymer has a tan [delta] peak in each of a region of 0 DEG C or more and a region of less than 0 DEG C. Furthermore, the optical laminate according to the present invention is characterized by comprising a substrate and an adhesive layer formed from the optical adhesive composition.

To provide an antiglare antireflection member capable of preventing a coloration when observed in an oblique direction and further preventing a bright spot from being locally observed.SOLUTION: An antiglare antireflection member includes an antiglare layer and a low refractive index layer on a substrate. In the antiglare antireflection member, an average of Δd is 7.0 nm to 40.0 nm, inclusive, in which a film thickness difference of the low refractive index layer is Δd in a given region 2 mm×2 mm in the antiglare antireflection member.SELECTED DRAWING: Figure 1

An anti-reflective film-attached transparent substrate includes: a transparent substrate comprising two main surfaces; and a diffusion layer and an anti-reflective film in this order from a transparent substrate side on one main surface of the transparent substrate. When reflection on the other main surface of the transparent substrate is eliminated and a light source is incident on the one main surface at an incident angle of 45°, a* and b* of diffusely reflected lights at angles of −15°, 15°, 25°, 45°, 75°, and 110° with respect to a specularly reflected light under a D65 light source satisfy formulas (1) −6≤a*≤2, (2) −1≤b*≤12 (3) b*≤−2a*+4, and (4) b*≥−2a*−5.