Abstract: A work implement's position is determined. Provided is a system including a work machine, the system comprising: a work machine body; a work implement attached to the work machine body; an imaging device that captures an image of the work implement; and a computer. The computer includes a trained position estimation model. The computer is programmed to obtain the image of the work implement captured by the imaging device and use the trained position estimation model to obtain a position of the work implement estimated from the captured image.

Abstract: There is provided a hydraulic excavator allowing a simple configuration to be employed to determine a posture of a work implement accurately. The work implement and an imaging device are attached to a revolving unit. The work implement operates on a prescribed operating plane. The imaging device captures an image of the work implement at an angle larger than 0° with respect to the operating plane. The controller determines a position of the work implement relative to the revolving unit based on a posture of the work implement in the image captured by the imaging device.

Abstract: Provided is a substrate with low-reflection property having small changes in reflected light and color between a principal surface and a side surface when it is visually recognized, and including high displayability in a front substrate or the like which is disposed while exposing the side surface. A substrate 10 with low-reflection property includes: a transparent substrate 11; a first low-reflection film 12 provided on one principal surface of the transparent substrate 11; and a second low-reflection film 13 provided on a side surface of the transparent substrate 11, wherein luminous reflectance Rtot of the first low-reflection film 12 provided on one principal surface is 1.5% or less, luminous reflectance Rs of the second low-reflection film 13 provided on the side surface is 2.5% or less, chromaticity a* is 0 to 4, and chromaticity b* is 3 to 9.

Abstract: A transparent substrate with a light-shielding layer including: a transparent substrate having a first main surface and a second main surface; an infrared ray-transmitting layer that is on the first main surface and forms a visible light-transmitting region that is an opening in a top view from the first main surface side; and a light-shielding layer that is on the infrared ray-transmitting layer and forms an infrared ray-transmitting region that is an opening to expose the infrared ray-transmitting layer in the top view from the first main surface side.

Abstract: A transparent substrate includes a first principal surface; a second principal surface as a principal surface on the opposite side of the first principal surface; a lateral surface extending between the first principal surface and the second principal surface; and a first boundary surface disposed between the first principal surface and the lateral surface and having a plurality of concave portions; wherein the first boundary surface is configured such that each of the concave portions has a bottom with a curvature and that the frequency of a maximum curvature is less than 3% in a frequency distribution of the curvatures of the concave portions.

Abstract: Provided is an antireflective-film attached transparent substrate having a luminous transmittance of 20% to 84% and a b* value of a transmission color being 5 or smaller under a D65 light source, in which the antireflective film has a luminous reflectance being 1% or lower and a sheet resistance being 104?/? or higher, and in which the antireflective film has a multilayer structure built up of at least two layers, at least one layer is constituted mainly of silicon oxide, and at least another layer is constituted mainly of a mixed oxide of at least one oxide of Mo and W and at least one oxide of Si, Nb, Ti, Zr, Ta, Al, Sn, and In, and has an extinction coefficient at 550 nm being in a range of 0.005 to 3.

Abstract: A glass laminate includes a glass substrate including a first main surface and a second main surface, and a functional layer at least on the first main surface. The functional layer includes at least two layers having a refractive index different from each other and the at least two layers are alternately laminated. The functional layer includes an outermost layer farthest from the glass substrate and a second layer that is adjacent to the outermost layer and lies closer to the glass substrate than the outermost layer. The outermost layer includes SiO2 as a main component. The second layer has a carbon concentration of 3×1018 atoms/cm3 or more and 5×1019 atoms/cm3 or less, and the carbon concentration of the second layer is lower than that of the outermost layer.

Abstract: Provided is an antireflective-film attached transparent substrate, which contains a transparent substrate having two principal surfaces and an antireflective film formed on one of the principal surfaces of the transparent substrate, in which the antireflective-film attached transparent substrate has a luminous transmittance being in a range of 20% to 85% and a b* value of a transmission color being 5 or smaller under a D65 light source, and the antireflective film has a luminous reflectance being 1% or lower and a sheet resistance being 104?/? or higher.

Abstract: A glass laminate includes a glass substrate including a first main surface and a second main surface, an antireflection layer on at least one of the first main surface and the second main surface, and an antifouling layer on the antireflection layer. The antireflection layer includes at least one low refractive index layer and at least one high refractive index layer, and the low refractive index layer and the high refractive index layer being alternately laminated. The antireflection layer includes an outermost layer farthest from the glass substrate and the outermost layer is the low refractive index layer including SiO2 as a main component. A distribution of fluorine concentration in a thickness direction of the outermost layer, measured by secondary ion mass spectrometry, has a peak.

Abstract: A transparent substrate with a light shielding region includes a transparent substrate, and a light shielding region on a peripheral portion of one main surface of the transparent substrate. The light shielding region includes a first light shielding region and a second light shielding region. The first light shielding region has a luminous transmittance of 0.1 to 40%, and an average transmittance at a wavelength of 800 to 1,000 nm of 65% or more. The second light shielding region has an optical density of 4 or more. The second light shielding region has a luminous reflectance of 0.1 to 1% and an average reflectance R1 at a wavelength of 600 to 700 nm being 1.5 times or more of an average reflectance R2 at a wavelength of 400 to 600 nm of the second light shielding region.

Abstract: A transparent substrate with a light-shielding layer including: a transparent substrate having a first main surface and a second main surface; an infrared ray-transmitting layer that is on the first main surface and forms a visible light-transmitting region that is an opening in a top view from the first main surface side; and a light-shielding layer that is on the infrared ray-transmitting layer and forms an infrared ray-transmitting region that is an opening to expose the infrared ray-transmitting layer in the top view from the first main surface side.

Abstract: A transparent substrate includes a first principal surface; a second principal surface as a principal surface on the opposite side of the first principal surface; a lateral surface extending between the first principal surface and the second principal surface; and a first boundary surface disposed between the first principal surface and the lateral surface and having a plurality of concave portions; wherein the first boundary surface is configured such that each of the concave portions has a bottom with a curvature and that the frequency of a maximum curvature is less than 3% in a frequency distribution of the curvatures of the concave portions.

Abstract: Provided is an antireflective film-attached transparent substrate, including a transparent substrate having first and second principal surfaces and an antireflective film formed on the first principal surface of the transparent substrate, in which the antireflective film has a luminous reflectance being I% or lower, and the antireflective film-attached transparent substrate has a transmittance being 85% or higher over the whole wavelength range of from 700 nm to 950 nm and has a reflectance being maximum in a wavelength range of from 750 nm to 900 nm in a reflection spectrum of a wavelength range of from 450 nm to 950 nm.

Abstract: Provided is an antireflective-film attached transparent substrate, which contains a transparent substrate having two principal surfaces and an antireflective film formed on one of the principal surfaces of the transparent substrate, in which the antireflective-film attached transparent substrate has a luminous transmittance being in a range of 20% to 85% and a b* value of a transmission color being 5 or smaller under a D65 light source, and the antireflective film has a luminous reflectance being 1% or lower and a sheet resistance being 104?/? or higher.

Abstract: A glass plate with an antifouling layer, including: a glass plate having a first principal surface, a second principal surface opposite to the first principal surface, and an end face connecting the first principal surface and the second principal surface; an adhesive layer formed from the first principal surface to the end face of the glass plate; and an antifouling layer formed on the adhesive layer.

Abstract: Provided is a substrate with low-reflection property having small changes in reflected light and color between a principal surface and a side surface when it is visually recognized, and including high displayability in a front substrate or the like which is disposed while exposing the side surface. A substrate 10 with low-reflection property includes: a transparent substrate 11; a first low-reflection film 12 provided on one principal surface of the transparent substrate 11; and a second low-reflection film 13 provided on a side surface of the transparent substrate 11, wherein luminous reflectance Rtot of the first low-reflection film 12 provided on one principal surface is 1.5% or less, luminous reflectance Rs of the second low-reflection film 13 provided on the side surface is 2.5% or less, chromaticity a* is 0 to 4, and chromaticity b* is 3 to 9.

Abstract: A base with a low-reflection film includes: a transparent base; a low-reflection film formed on a first principal surface of the transparent base; and a black printed part formed on a part of a second principal surface of the transparent base opposite to the first principal surface, in which a luminous reflectance R of the base with the low-reflection film with respect to incident light from the low-reflection film side is 2% or less in a region of the transparent base having the black printed part, and a ratio R1/R2 between a luminous reflectance R1 of a surface of the low-reflection film and a luminous reflectance R2 at an interface of the black printed part with the transparent base is ? or more.

Abstract: A glass substrate with an antifouling layer includes: a glass substrate which has a pair of principal surfaces facing to each other; a cohesive layer provided on the side of one principal surface of the glass substrate; and an antifouling layer provided on a surface of the cohesive layer, wherein the cohesive layer has a layer, the layer is in contact with the antifouling layer, contains mainly a silicon oxide, and contains carbon atoms at a concentration of 5×1018 atoms/cm3 to 5×1019 atoms/cm3.

Abstract: A cover glass includes a glass substrate and an antireflection film disposed on at least one of main surfaces of the glass substrate, and the at least one of main surfaces of the glass substrate has one or more cracks formed therein, the crack(s) each having a length of 5 ?m or less, and a difference ?a* in a* value between any two points within a surface of the cover glass on the side where the antireflection film has been disposed and a difference ?b* in b* value between any two points within the surface of the cover glass on the side where the antireflection film has been disposed satisfy the following expression: ?{(?a*)2+(?b*)2}?4.

Abstract: A cover glass includes: a glass substrate having a convex and concave shape formed on at least one of surfaces thereof by an antiglare treatment; and an antireflection film disposed on the surface of the glass substrate, the surface having the convex and concave shape. In the cover glass, a difference ?a* in a* value between any two points within a surface of the cover glass on the side where the antireflection film is present and a difference ?b* in b* value between any two points within the surface of the cover glass on the side where the antireflection film is present satisfy the following expression: ?{(?a*)2+(?b*)2}?4.