Disclosed is an optical sensor device for detecting a chemical analyte including a light source configured to generate probe light having a first wavelength spectrum, an optical fiber sensor probe including a mechanically processed optical fiber segment which is chemically functionalized to include a sensing material formed on exterior of the fiber segment, the optical fiber sensor probe coupled to receive and guide the generated probe light inside the optical fiber sensor probe while allowing optical evanescent coupling between probe light guided inside the optical fiber sensor probe and the sensing material, and a detector coupled to the optical fiber sensor probe to optically detect the guided probe light to obtain information on a material property of the sensing material.

A manufacturing method of a wavelength-converting component includes providing a substrate, providing a wavelength-converting layer and providing a reflective layer. The reflective layer is disposed on the substrate. The wavelength-converting layer is disposed on a surface of the reflective layer away from the substrate. The wavelength-converting layer includes a wavelength-converting material and a second organic adhesive. The wavelength-converting material is mixed in the second organic adhesive. The second organic adhesive includes an aromatic polyimide. The wavelength-converting component manufactured by the method of the invention can improve mechanical properties such as shear strength, tensile strength and fatigue strength, temperature resistance and reflectivity, and can reduce rates of moisture absorption. The projection apparatus including the wavelength-converting component can reduce degradation in image brightness.

This invention provides a method for forming a multilayer coating film, the method comprising forming a multilayer coating film that has excellent blackness, high reflectance of an infrared laser, and excellent coating film performance. The method for forming a multilayer coating film includes forming a first colored coating film containing a titanium oxide pigment, in which the diffuse reflectance at a wavelength of 905 nm or diffuse reflectance at a wavelength of 1550 nm, or both, is 40% or more; forming a second colored coating film containing at least one pigment selected from the group consisting of (A1) a perylene black pigment, (A2) a black metal oxide complex pigment, and (A3) two or more pigments selected from the group consisting of blue pigments, red pigments, yellow pigments, and green pigments; forming a third colored coating film containing a carbon black pigment; and forming a clear coating film; wherein the multilayer coating film has a lightness L*(45° of 3 or less and a chroma C*(45° of 1 or less, and wherein the diffuse reflectance at a wavelength of 905 nm or the diffuse reflectance at a wavelength of 1550 nm of the multilayer coating film, or both, is 10% or more.

One or more aspects of the present disclosure provide articles of manufacture and components of articles that incorporate an optical element that imparts structural color to the component or the article. The component comprises a cured or curable material, and can include or be made to have a textured surface.

One or more aspects of the present disclosure are directed to components having an optical element that imparts structural color to the component or article. The present disclosure is also directed to articles of manufacture including the component having an optical element, and methods for making components and articles having an optical element that imparts structural color.

A method for 3D printing an object with at least one wall (2) having a first surface and a second, opposite surface, wherein the first surface is intended to serve as an optical functional surface, wherein the wall is formed by printing one track (16) on top of another track (17). An orientation of the object during printing is selected such that the wall has a tangent (or tangent surface) non-parallel to the z-axis, such that the first surface faces away from the x-y plane and the second surface faces the x-y plane. According to the invention, the 3D object is thus oriented during printing such that the first surface, intended to be used as an optical functional surface, faces away from the x-y plane, i.e. typically away from the support or platform on which the 3D object is printed upon. By ensuring this orientation during printing, the first surface becomes smoother than the second, opposite surface of the wall.

A printed matter has a substrate and a glossy layer provided on the substrate. The substrate is at least one selected from the group consisting of a steel plate, a metal plate, a plastic plate, a film, a ceramic plate, concrete, wood, glass, and fabric (the substrate is not a transparent member), wherein the glossy layer comprises a translucent ink, wherein on a surface of the substrate, a first region including a first protrusion formed along a first direction in a plane and a second region including a second protrusion formed along a second direction different from the first direction are formed, and wherein the first protrusion includes a curved part which is curved from the first direction to the second direction and connected to the second region.

Provided is a method for forming a multilayer coating film that is capable of forming a multilayer coating film that has pearly luster with excellent blackness and high reflectance of an infrared laser. The method for forming a multilayer coating film includes applying a carbon black pigment-containing first colored paint (X) to form a first colored coating film; applying a second colored paint (Y) containing a pigment (A) that is a transparent or translucent base material coated with a metal oxide to form a second colored coating film; applying a clear paint (Z) to form a clear coating film; and heating the first colored coating film, the second colored coating film, and the clear coating film separately or simultaneously to cure these films, wherein the first colored coating film has a lightness L*(45°) of less than 20, the multilayer coating film has a lightness L*(45°) of less than 20, and the multilayer coating film has a diffuse reflectance of 10% or more at a wavelength of 905 nm.

A system for applying a first, a second, and a third coating composition. The system includes a first high transfer efficiency applicator defining a first nozzle orifice. The system further includes a second high transfer efficiency applicator defining a second nozzle orifice. The system further includes a third high transfer efficiency applicator defining a third nozzle orifice. The system further includes a substrate defining a target area. The first, the second, and the third high transfer efficiency applicators are configured to expel the first coating composition through the first nozzle orifice to the target area of the substrate, through the second nozzle orifice to the target area of the substrate, and through the third nozzle orifice to the target area of the substrate.

This invention provides a method for forming a multilayer coating film that is capable of forming a multilayer coating film that has excellent blackness, high reflectance of an infrared laser, and excellent coating film performance. The method for forming a multilayer coating film includes forming a first colored coating film containing a titanium oxide pigment and in which the diffuse reflectance at a wavelength of 905 nm or diffuse reflectance at a wavelength of 1550 nm, or both, is 40% or more; forming a second colored coating film containing a carbon black pigment (A) and one or more pigments (B), which are a perylene black pigment (B1) or two or more pigments (B2) selected from the group consisting of blue pigments, red pigments, yellow pigments, and green pigments, or both (B1) and (B2); and forming a clear coating film; wherein the multilayer coating film has a lightness L*(45°) of 4 or less and a chroma C*(45°) of 2 or less, and wherein the diffuse reflectance at a wavelength of 905 nm or the diffuse reflectance at a wavelength of 1550 nm, or both, is 10% or more.