Abstract: In various embodiments, an electronic device may include: a light receiver including light receiving circuitry, a light emitter including light emitting circuitry, a partition wall disposed between the light receiver and the light emitter configured to block light emitted by the light emitter from being directly incident on the light receiver, a film disposed above one surface of the light receiver, and a processor. The film may include a transmission region configured to transmit light of all wavelength bands and a selective blocking region configured to absorb light of a specific wavelength band. The processor may be configured to analyze light incident on the light receiver through the film.

Abstract: A quantum structure thin film includes an excitation layer, a first substrate and a second substrate. The excitation layer includes a plurality of quantum structures which are one of quantum dots and quantum rods, and which are made of one of cesium lead halide and organic ammonium lead halide. The first substrate and the second substrate are respectively disposed on two opposite sides of the excitation layer. One of the first substrate and the second substrate includes an inner layer, a buffer layer, and an outer layer that are sequentially disposed on the excitation layer in such order. Also disclosed herein is a quantum structure light-emitting module including the quantum structure thin film.

Abstract: Various embodiments of an apparatus, methods, systems and computer program products described herein are directed to an agricultural observation and treatment system and method of operation. The system uses a pump in combination with a fluid regulator to obtain and disperse fluid from the fluid tanks. The fluid regulator includes a fluid input port, a fluid output port and a fluid control valve. A first tube fluidly coupled from the fluid pump to the fluid input port. The system includes a moveable treatment head having one or more spraying tips, including a first spraying tip. A second tube is fluidly coupled from the fluid output port to the moveable treatment head. A system includes a controller configured to provide to the fluid regulator to open and close the fluid control valve to release an amount of the first fluid.

Abstract: The present invention relates to an optical article, and an optical filter and an imaging device including the same. The optical article comprises: a near-infrared absorption glass substrate including a divalent copper ion as a chromatic ingredient; and a pigment dispersion layer formed on one surface or both surfaces of the near-infrared absorption glass substrate and having a near-infrared absorption pigment and an ultraviolet absorption pigment dispersed across the resin matrix thereof. Provided with a first and a second transmission cut-off region, the optical article has the advantage of allowing the fabrication of an excellent near-infrared cut-off filter that can effectively block light in near-infrared and ultraviolet bands and does not permit a difference in color sense with the change of incident angles.

Abstract: An inspection apparatus is an inspection apparatus includes an excitation light source that generates excitation light to irradiate the object, a dichroic mirror that separates fluorescence from the sample by transmitting or reflecting the fluorescence according to a wavelength, a camera that images fluorescence reflected by the dichroic mirror, a camera that images fluorescence transmitted through the dichroic mirror, and a control apparatus that derives color irregularity information of a light-emitting element based on a first fluorescence image acquired by the camera and a second fluorescence image acquired by the camera, and an edge shift width corresponding to a width of a wavelength band in which transmittance and reflectance change according to a change in wavelength in the dichroic mirror is wider than a full width at half maximum of a normal fluorescence spectrum of the light-emitting element.

Abstract: An optical film is disclosed. The optical film is divided into a main body and two extending portions arranged along a second direction by two imaginary lines which are extended along a first direction and parallel to each other, wherein the second direction is substantially perpendicular to the first direction. The main body is located between the two extending portions. Each of the extending portions has an abutting edge. A first length W0 of the main body along the first direction is greater than a second length W1 of the abutting edge along the first direction.

Abstract: An imaging lens system includes a plastic lens element, a lens barrel and a light-absorbing layer. The plastic lens element is accommodated in the lens barrel and has an outer annular surface. The lens barrel includes a plate portion and a lateral wall portion. An optical axis of the imaging lens system passes through a light-passable hole of the plate portion. The lateral wall portion is connected to the plate portion and extends along a direction substantially parallel to the optical axis. The light-absorbing layer has an inner surface and an outer surface. The inner surface faces and is fixed on the outer annular surface of the plastic lens element. The outer surface is located opposite to the inner surface and in physical contact with the lateral portion of the lens barrel.

Abstract: A vertical alignment liquid crystal display module including a vertical alignment liquid crystal display panel and an image color switch film is provided. The image color switch film is disposed on the vertical alignment liquid crystal display panel. In various viewing angle directions having included angles of 60 degrees to 75 degrees with respect to a normal of the image color switch film, the image color switch film has a following optical characteristic: an average transmittance of a visible light transmittance spectrum of the image color switch film at an end of short wavelength is less than an average transmittance of the visible light transmittance spectrum of the image color switch film at an end of long wavelength.

Abstract: A laminated vehicle glass has an outer glass, an intermediate layer arrangement, an inner glass, a first color carrier and a second color carrier. The outer glass is at least partly adhesively bonded to the inner glass via the intermediate layer arrangement. The first color carrier is formed as a print with a first printing ink on the inner side of the outer glass. The second color carrier is formed as a print with a printing ink or as a film and has a second color. The second color carrier is provided in at least some regions on the side of the first color carrier that faces away from the outer glass. The first color and second color are different, at least in some regions. The second color is provided in a frame-like region of the laminated vehicle glass.

Abstract: Disclosed are an optical structure, and a camera module and an electronic device including the same. The optical structure includes a transparent substrate; a first moisture-proof layer disposed on the transparent substrate and including a first organic material having moisture-proof properties; and a first near-infrared absorbing layer disposed between the transparent substrate and the first moisture-proof layer and including a copper complex, wherein the first organic material having moisture-proof properties has a water vapor transmission rate (WVTR) of less than or equal to about 100 g/m2/day measured at a thickness of 100 ?m.

Abstract: Provided is an antireflective member that has a water- and oil-repellent layer on a multi-layered antireflective layer and is capable of exhibiting excellent surface lubricity, water- and oil-repellent properties, and durability. The surface of the multi-layered antireflective layer on a base material has a root-mean-square surface roughness of 0.8 nm to 2.0 nm. The water- and oil-repellent layer has a thickness of 1 to 30 nm and is a cured product of water- and oil-repellents having as principal components a fluorooxyalkylene group-containing polymer modified organosilicon compound with the numerical average molecular weight of 4,500 to 10,000 of a fluoropolymer part and/or partial hydrolysis condensate thereof.

Abstract: A vertical alignment liquid crystal display module including a vertical alignment liquid crystal display panel and an image color switch film is provided. The image color switch film is disposed on the vertical alignment liquid crystal display panel. In various viewing angle directions having included angles of 60 degrees to 75 degrees with respect to a normal of the image color switch film, the image color switch film has a following optical characteristic: an average transmittance of a visible light transmittance spectrum of the image color switch film at an end of short wavelength is less than an average transmittance of the visible light transmittance spectrum of the image color switch film at an end of long wavelength.

Abstract: A black resin composition, a cured film, and a black filter are provided. The black resin composition includes: a black coloring agent (A), an ethylenically-unsaturated monomer (B), a solvent (C), a resin (D), a photoinitiator (E), a UV absorber (F), and a surfactant (G). The resin (D) includes a first resin having a weight-average molecular weight of 2,000 to 20,000. The first resin includes a structural unit having a fluorene ring and two or more ethylenically-polymerizable groups. The UV absorber (F) includes a benzylidene-based derivative.

Abstract: A non-imaging concentrator is employed in an upside down configuration in which light enters a smaller aperture and exits a larger aperture. The input angle of light rays may be as large as 180 degrees, while the maximum exit angle is limited to the acceptance angle of the non-imaging concentrator. A dichroic filter placed at the larger aperture has a maximum angle of incidence equal to the acceptance angle of the non-imaging concentrator.

Abstract: This method for manufacturing a light absorber includes: a first step for irradiating a resin substrate with ion beams; a second step for etching the irradiated resin substrate with an alkaline solution to form an uneven surface on the surface thereof; a third step for forming a transfer body which covers the uneven surface of the etched resin substrate; and a fourth step for peeling off the transfer body from the resin substrate to obtain a light absorber. A metal film, a photocurable resin, and a silicone rubber are disclosed as an example of the transfer body.

Abstract: Systems and methods are described that relate to a scanning laser system configured to emit laser light and an interlock circuit communicatively coupled to the scanning laser system. The interlock circuit may carry out certain operations. The operations include, as the scanning laser system emits laser light into one or more regions of an environment around the scanning laser system, determining a respective predicted dosage amount for each region based on the emitted laser light. The operations further include detecting an interlock condition. The interlock condition includes a predicted dosage amount for at least one region being greater than a threshold dose. In response to detecting the interlock condition, the operations include controlling the scanning laser system to reduce a subsequent dosage amount in the at least one region.

Abstract: The present invention provides a manufacturing method of a color film substrate and the color film substrate. The manufacturing method includes providing a substrate; forming a first photoresist layer on a first sub-pixel region; forming a quantum dot layer on the substrate, wherein light emission colors of at least two types of quantum dots are respectively different from a light emission color of the first photoresist layer; forming a second photoresist layer and a third photoresist layer on the quantum dot layer in order; and quenching the quantum dot layer to invalidate unshielded quantum dots of the quantum dot layer.

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to photodetectors used with a broadband signal and methods of manufacture. The structure includes: a first photodetector; a second photodetector adjacent to the first photodetector; a first airgap of a first size under the first photodetector structured to detect a first wavelength of light; and a second airgap of a second size under the second photodetector structured to detect a second wavelength of light.

Abstract: A lens module and an electronic device including the lens module are provided. The lens module includes a lens group and a lens barrel, and the lens group includes a plurality of lenses sequentially arranged from an object side to an image side; the lens barrel comprising an first wall enclosing a receiving cavity for receiving the lens group, and an inner side wall extending from an end of the first wall near the image side away from the lens group, a plurality of first light-extinction grooves arranged in an array are provided on the inner side wall, and each of the first light-extinction grooves extends along an axial direction of the lens barrel.

Abstract: An optical lens assembly has a central axis and includes at least one dual molded lens element. The dual molded lens element includes a light transmitting portion and a light absorbing portion, wherein the light transmitting portion includes an optical effective region and a lens peripheral region, and the lens peripheral region surrounds the optical effective region. The light absorbing portion surrounds the optical effective region. The light transmitting portion and the light absorbing portion are made of different plastic materials with different colors, and are integrally formed by an injection molding. The light transmitting portion or the light absorbing portion includes a plurality of annular convex structures, and the annular convex structures surround the central axis.

Abstract: A method for manufacturing an array substrate includes: forming a pixel defining layer having a plurality of accommodating wells over a substrate, and forming a hydrophobic material layer over the pixel defining layer. A side wall of each accommodating well comprises a hydrophilic side surface. The hydrophilic side surface is partially covered by the hydrophobic material layer to thereby form an overlapped region having a hydrophobic outer surface and an exposed region having a hydrophilic outer surface. The overlapped region is on a side of the exposed region distal to the substrate. The array substrate manufactured thereby allows an organic functional layer to be evenly fabricated in each accommodating well of the pixel defining layer via inkjet printing.

Abstract: An infrared spectrometer for operation in the mid-infrared spectral range is presented, where the spectrometer includes a Bragg-mirror-based spectral filter that is operative for providing an interrogation signal whose spectral content is dispersed along a first direction at a filter aperture. The filter aperture is imaged through a sample by a thermal-imaging camera to create a focused image that is based on the interrogation signal and the absorption characteristics of the sample. As a result, embodiments in accordance with the present disclosure can be smaller, less complex, and less expensive than infrared spectrometers known in the prior art.

Abstract: Laser lift off systems and methods may be used to provide monolithic laser lift off with minimal cracking by reducing the size of one or more beam spots in one or more dimensions to reduce plume pressure while maintaining sufficient energy to provide separation. By irradiating irradiation zones with various shapes and in various patterns, the laser lift off systems and methods use laser energy more efficiently, reduce cracking when separating layers, and improve productivity. Some laser lift off systems and methods described herein separate layers of material by irradiating non-contiguous irradiation zones with laser lift off zones (LOZs) that extend beyond the irradiation zones. Other laser lift off systems and methods described herein separate layers of material by shaping the irradiation zones and by controlling the overlap of the irradiation zones in a way that avoids uneven exposure of the workpiece.

Abstract: A beam intensity converting film that has sufficient shielding property, sufficient durability, and sufficient heat resistance and that can reduce the extent of radioactivation. An attenuator is constituted by a graphite film placed such that a surface thereof intersects the beam axis of a charged particle beam, the graphite film has a thickness of 1 ?m or greater, and the thermal conductivity in a surface direction of the graphite film is equal to or greater than 20 times the thermal conductivity in the thickness direction of the graphite film.

Abstract: Glasses are provided that are highly transparent and have very good resistance to solarisation. The resistance to solarisation is favoured to a special extent by the production method. The concentrations of reduced polyvalent ion species are reduced by targeted use of bubbling with an oxidising gas. Methods for producing glasses and to the uses thereof, particularly as core glasses in optical waveguides, are also provided.

Abstract: There is provided a flexible color filter for a display device, a flexible organic light-emitting display device comprising the color filter, and a manufacturing method therefor and, more specifically, a flexible color filter having a structure in which a base film, an adhesive layer, a separation layer, a protective layer, a black matrix layer, a pixel layer formed between different portions of the black matrix layer, and a planarization layer are sequentially stacked. The flexible color filter having the structure can be manufactured on a glass substrate, and thus advantages of solving a problem of thermal deformation of a plastic substrate in a high temperature process for implementing a color filter, enabling a fine pitch of a pattern, which cannot be implemented on a plastic substrate, and enabling diversification without limitations for a material of a base film can be secured.

Abstract: Glasses are provided that are highly transparent and have very good resistance to solarisation. The resistance to solarisation is favoured to a special extent by the production method. The concentrations of reduced polyvalent ion species are reduced by targeted use of bubbling with an oxidising gas. Methods for producing glasses and to the uses thereof, particularly as core glasses in optical waveguides, are also provided.

Abstract: An antireflection film is formed by laminating an interlayer, a silver-containing metal layer containing silver, and a dielectric layer in this order from the substrate, an anchor region including an oxide of an anchor metal is provided between the silver-containing metal layer and the interlayer, a cap region including an oxide of the anchor metal included in the anchor region is provided between the silver-containing metal layer and the dielectric layer, a crystal grain size obtained by X-ray diffraction measurement in the silver-containing metal layer is less than 6.8 nm, and the anchor metal has a surface energy less than a surface energy of silver and greater than a surface energy of a layer of the interlayer closest to the silver-containing metal layer.

Abstract: A lens barrel includes a first guide barrel configured to guide linear movements of a first lens and a second lens in an optical axis direction, a first cam barrel rotatable around an optical axis relative to the first guide barrel and including a first cam configured to move the first lens in the optical axis direction by a rotation of the first cam barrel, and a second cam barrel rotatable around the optical axis relative to the first guide barrel by the rotation of the first cam barrel, and including a second cam configured to move the second lens in the optical axis direction by a rotation of a second cam barrel.

Abstract: The invention provides a lighting unit configured to generate white light wherein the white light has a spectral intensity in the visible wherein at least 40% of all photons in the wavelength range of 400-500 nm are found in the wavelength range of 430-445 nm (see also FIG. 1b). The lighting unit may especially be used for increasing alertness of a human while not or minimally suppressing melatonin production of the human.

Abstract: A method and apparatus for improving measurements of a laser beam in a laser imaging system. The method includes, positioning an apodizing filter having a transmission profile that approaches a maximum at its edges between a pixelated detector and a laser source. The method further includes, emitting a laser beam from the laser source onto the apodizing filter and transmitting a portion of the laser incident upon the apodizing filter to the pixelated detector in accordance with the transmission profile of the apodizing filter such that the signal-to-noise ratio of the portion of the laser incident upon the pixelated detector is improved. The apodizing filter may be selected from a linear apodizing filter, a radial apodizing filter and a prism apodizing filter.

Abstract: An isotropic imaging filter is provided that includes a photonic crystal slab, where the photonic crystal slab includes a square lattice of air through holes, a dielectric constant, a thickness (d), a through hole radius (r), and a lattice constant (a), where the square lattice of air holes are separated according to a value of the lattice constant, where the thickness is configured according to d=M(a), where the through hole radii is configured according to r=N(a), where the thickness and the hole radii are configured to generate isotropic bands of guided resonances of an incident image.

Abstract: The present disclosure relates to a wide color gamut film, a composition for preparing the same, a polarizing plate including the same, and a liquid crystal display including the polarizing plate. More specifically, the present disclosure relates to a wide color gamut film capable of improving color gamut by increasing color purity and exhibiting excellent physical and optical characteristics, a composition for preparing the same, a polarizing plate including the same, and a liquid crystal display including the polarizing plate.

Abstract: A display device and a method of manufacturing a display device are provided. The display device includes: a base substrate; a color conversion pattern disposed on the base substrate; and a low refractive layer disposed on the base substrate, stacked with the color conversion pattern, and having a lower refractive index than the color conversion pattern. The low refractive layer includes a first base resin and particle clusters dispersed in the first base resin, and the particle clusters include a plurality of particles and bridges that combine the particles.

Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.

Abstract: A method of manufacturing an optical communication device includes preparing first and second pre-defined break lines in a carrier wafer. A first sub-mount is positioned near the first break line to accommodate an optical laser and a second sub-mount is positioned near the second break line to accommodate an optical modulator. The first sub-mount is secured to a thermally conductive and electrically nonconductive spacer which is secured to a thermo-electrical cooler that defines a gap between the first submount and the thermo-electrical cooler. A portion of the carrier wafer between the sub-mounts is removed.

Abstract: An organic light emitting diode (OLED) display device includes an OLED with a plurality of sub-pixels. A first portion of light-absorption filter layer is between the OLED and an emission surface at locations corresponding to selected sub-pixel locations. The first portion of light-absorption filter layer includes a first light-absorption dye and a second light-absorption dye such that the first portion has a light transmittance curve that has a first valley between 470 nm and 550 nm and has a second valley between 570 nm and 620 nm. At the selected sub-pixel locations, there is a color filter between the OLED and the light-absorption filter.

Abstract: An optical wavelength conversion module including a substrate, a driving device, and a first phosphor material layer is provided. The first phosphor material layer is disposed on a first optical region of the substrate. A conversion beam generated by the first phosphor material layer is a yellowish green beam when a phosphor temperature of the first phosphor material layer is close to or equal to an ambient temperature. The conversion beam generated by the first phosphor material layer is a yellow beam when the phosphor temperature of the first phosphor material layer is close to or exceeds a preset temperature. The driving device is connected to the substrate. The driving device is adapted to drive the substrate to act when the optical wavelength conversion module is in an operating state, so that the yellow beam is emitted from the first optical region. An illumination module is also provided.

Abstract: A touch panel is provided. The touch panel includes a substrate, a ground layer, a passivation layer, a conductive layer and a shielding layer. The ground layer is disposed on and covers a portion of a surface of the substrate. The passivation layer is disposed on the ground layer, thereby the ground layer has a covered portion and an exposed portion. The covered portion is covered by the passivation layer. The conductive layer is disposed on and completely covers the exposed portion of the ground layer. A portion of the passivation layer is covered by the conductive layer. The shielding layer is disposed on the conductive layer, and the orthogonal projections of the shielding layer and the ground layer onto the surface of the substrate are at least partially overlapped with each other. The present invention also provides a manufacturing method of a touch panel.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, that determine whether to illuminate a scene with electromagnetic radiation at a first wavelength or electromagnetic radiation at a second wavelength. An illuminator that is configured to selectively emit electromagnetic radiation at the first wavelength and at the second wavelength is triggered to emit electromagnetic radiation at the first wavelength instead of the second wavelength. A first voltage is applied to a first electrically active filter. A third voltage is applied to a second electrically active filter. A first image is obtained from a first sensor that senses electromagnetic radiation that passes through the first filter. A second image is obtained from a second sensor that senses electromagnetic radiation that passes through the second filter. A depth map is generated from the first image and the second image.

Abstract: A pixel array comprise a green pixel comprising a first green optical filter and a first clear filter, a red pixel comprising a red optical filter and a first special filter, a blue pixel comprising a blue optical filter and a second special filter, and an IR pixel comprising an IR optical filter and one of a second green optical filter and a second clear filter, where the first special filter suppresses a transmission of IR at a stopband centered at 850 nm at a first IR minimum transmission, and the second special filter suppresses a transmission of IR at the stopband centered at 850 nm at a second IR minimum transmission, and where the first minimum IR transmission is different from the second minimum IR transmission.

Abstract: Embodiments of the present invention provide a substrate and a fabrication method thereof, and a display device. The substrate includes a base and a pixel defining layer in which a plurality of openings are formed, the pixel defining layer includes a first defining layer, a second defining layer and a third defining layer sequentially stacked on the base, wherein, the second defining layer is configured as a conductive layer, and an orthogonal projection of the second defining layer on the base is at least partially located outside an orthogonal projection of a side of the third defining layer close to the base on the base.

Abstract: The present disclosure relates to compensating method for cell assembly. According to a deviation value of a key position of a measured array substrate, a compensation value of an exposure parameter of black matrix process of a color film substrate is calculated in real time by using historical measurement data of batches. The compensation value is fed back to a manufacturing apparatus in real time. The manufacturing apparatus corrects the key parameter of the apparatus timely according to the compensation value of the exposure parameter of the black matrix, to manufacture a color film substrate matching with the array substrate.

Abstract: Presented herein is an optical filter system for visible light, which has a first average transmittance T1 between a limit wavelength ?G and a wavelength of 700 nm and a second average transmittance T2 between a wavelength of 380 nm and the limit wavelength ?G. In this case: 410 nm<?G<520 nm and 0.05 < T 1 T 2 < 0.60 .

Abstract: The present invention relates to a coloring resin composition exhibiting pleochroism comprising 100 parts by weight of a transparent thermoplastic resin (A); 0.01 to 0.03 parts by weight of a dye for coloring a resin (B) which is one selected from the group consisting of an azo-based dye (b1), an anthraquinone-based dye (b2), and a methine dye (b3); and 0.1 to 0.3 parts by weight of a functional black dye (C) obtained by mixing an anthraquinone-based dye (c1) and a perinone-based dye (c2). A resin molded article manufactured by the coloring resin composition exhibiting pleochroism of the present invention is characterized by exhibiting different colors of light according to thicknesses although the resin molded article is irradiated with light sources in a single wavelength.

Abstract: A reflection optical filter has an ultra-thin semi-transparent layer and a thin layer of semiconductor (or dielectric) layer deposited onto a metal film surface at a certain thickness corresponding to a wavelength of light to be filtered from incoming light. Critical coupling of light to the optical cavity formed by the semi-transparent layer and semiconductor (or dielectric) layer on metal surface results in near perfect absorption of the light at one wavelength and strong absorption in the wavelength region near the peak absorption wavelength. Incoming lights of other wavelengths are mostly reflected by the device so the spectral content of incident light is changed. By controlling the thickness of the semiconductor (or dielectric) layer and/or other factors, such as the extent to which the semiconductor layer is annealed or changing the type of metal beneath the semiconductor (or dielectric) layer, the peak absorption wavelength of the light absorbed in the device can be precisely controlled.

Abstract: The present disclosure discloses a mask plate, the mask plate includes: a substrate; a plurality of shading portions respectively arranged in intervals on a surface of the substrate; a plurality of semi-transparent portions respectively arranged against both sides of the shading portions, wherein, a transparent region between two adjacent shading portions are formed between two-adjacent-semi-transparent-portions. The present disclosure discloses a manufacturing method of a color filter substrate.

Abstract: There is disclosed squaraine compounds of formula I: wherein each of Y1 and Y2 is independently chosen from an optionally substituted amino group and an optionally substituted aryl group. Also described are organic optoelectronic devices comprising a Donor-Acceptor heterojunction that is formed from one or more of the squaraine compounds. A method of making the disclosed device, which may include one or more sublimation step for depositing said squaraine compound, is also disclosed.

Abstract: The present invention relates to a black matrix mask, a method for manufacturing a black matrix, and an application thereof. The black matrix mask includes a light-shielding layer having a predetermined transmission rate and coated along an edge of a black matrix pattern of the black matrix mask. The present invention also provides methods for manufacturing a black matrix, a color filter, an array substrate, and a liquid crystal display device. The method for manufacturing the black matrix includes: Step 100: using the black matrix mask to subject a black matrix material layer on a base plate to exposure; Step 200: subjecting the exposed black matrix material layer to development; and Step 300: subjecting the developed black matrix material layer to baking to finally form a black matrix on the base plate.

Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.