Abstract: A mounting structure for an optical module includes a light emitting element, a submount board on which the light emitting element is mounted, a main board on which the submount board is mounted, a light guide member provided on the main board, and a diffraction grating optical coupler provided on the main board and connected to the light guide member. The submount board and the main board are bonded to each other on a surface of the submount board different from a surface on which the light emitting element is mounted.

Abstract: A learning device includes an input processor and a learning processor. The input processor acquires a physical quantity related to a cutting process, and inputs a state variable based on the physical quantity to the learning processor, and the learning processor updates, based on a measured cutting result, an evaluation model that outputs an evaluation result of the cutting process based on the state variable.

Abstract: A mold includes a rugged pattern layer, an inorganic sheet layer, and an elastic sheet layer. The inorganic sheet layer is formed of an inorganic material and supports the rugged pattern layer. The elastic sheet layer supports the inorganic sheet layer.

Abstract: A mounting structure for an optical module includes a light emitting element, a submount board on which the light emitting element is mounted, a main board on which the submount board is mounted, a light guide member provided on the main board, and a diffraction grating optical coupler provided on the main board and connected to the light guide member. The submount board and the main board are bonded to each other on a surface of the submount board different from a surface on which the light emitting element is mounted.

Abstract: A learning device includes an input processor and a learning processor. The input processor acquires a physical quantity related to a cutting process, and inputs a state variable based on the physical quantity to the learning processor, and the learning processor updates, based on a measured cutting result, an evaluation model that outputs an evaluation result of the cutting process based on the state variable.

Abstract: A mold includes a rugged pattern layer, an inorganic sheet layer, and an elastic sheet layer. The inorganic sheet layer is formed of an inorganic material and supports the rugged pattern layer. The elastic sheet layer supports the inorganic sheet layer.

Abstract: First protrusions (321) and second protrusions (322) surrounding the first protrusions (321) are formed on the surface of an optical member (1). The first and second protrusions (321, 322) are sized for a wavelength with antireflection and have different heights or pitches.

Abstract: A method for forming fine patterns, including: holding, by a holding member, a sheet-like deformable thin-plate mold with fine patterns having been predeterminedly formed, above a UV-light-transparent substrate such that a UV hardening resin has been applied beforehand on a surface thereof, in such a manner that the mold is at a predetermined angle inclined with tension being applied; and letting a surface of the thin-plate mold serially get in contact with the UV hardening resin by allowing, after a first pressing roll installed above the thin-plate, mold is allowed to descend from above the thin-plate mold, the first pressing roll to relatively move concerning the substrate in a lateral direction while pressing, by the first pressing roll, the thin-plate mold against the UV hardening resin with a predetermined pressure.