Decorative sheet, cover panel, and display device

    公开(公告)号:US12059885B2

    公开(公告)日:2024-08-13

    申请号:US18560040

    申请日:2022-05-26

    申请人: NISSHA CO., LTD.

    IPC分类号: B32B7/023 G02B5/22 G02B5/26

    摘要: A decorative sheet has a pattern formed with an interference pigment and is more versatile with reduced coloration specific to the interference pigment. A patterned layer has a pattern formed with an interference pigment to produce a color by interference of reflected light reflected after being incident as incident light on a front surface of the patterned layer. A front color-adjustment layer covers the front surface of the patterned layer and transmits the incident light, incident light, and the reflected light. A base film supports the patterned layer and the front color-adjustment layer. The front color-adjustment layer contains particles of a front absorbing pigment dispersed uniformly across the front color-adjustment layer. The front color-adjustment layer with the front absorbing pigment reduces a spectral component in a predetermined wavelength range of the incident light and the reflected light transmitted through the front color-adjustment layer.

    Method for manufacturing optical device, optical device, non-transitory computer-readable storage medium, and color adjusting device

    公开(公告)号:US12048483B2

    公开(公告)日:2024-07-30

    申请号:US17471310

    申请日:2021-09-10

    发明人: Masafumi Yano

    摘要: A method for manufacturing an optical device, includes obtaining a plurality of test images in each of which spectral intensities of a first color component, a second color component and a third color component are separately changeable, changing the spectral intensity of the first color component in at least a first test image, changing the spectral intensity of the second color component in at least a second test image, obtaining a spectral intensity Rs of the first color component and a spectral intensity Gs of the second color component satisfying a particular test condition when a subject is looking at the first and second test images, and manufacturing the optical device including an optical element configured to adjust spectral intensities of the first color component and the second color component, in light transmitted through the optical element, based on the spectral intensities Rs and Gs.

    OPTICAL FILTER AND LIGHTING DEVICE TO REPRODUCE THE LIGHT OF THE SKY AND THE SUN COMPRISING THE SAME

    公开(公告)号:US20240069260A1

    公开(公告)日:2024-02-29

    申请号:US18259604

    申请日:2021-12-23

    申请人: CoeLux S.r.l.

    发明人: Paolo Di Trapani

    IPC分类号: G02B5/22 F21V8/00 G02B5/00

    摘要: The present invention relates to an optical filter (100) comprising a substantially flat entry surface (101), a substantially flat exit surface (102) parallel to the entry surface, a plurality of channels (103) made of a material substantially transparent to light, wherein the channels (103) of the plurality of channels comprise an entry face (104), an exit face (105) and a lateral surface extending perimetrically between the entry face (104) and the exit face (105) over a length (L) of the channels (103), are arranged side by side and parallel to each other so as to define a plurality of interspaces between adjacent channels (103), have a channel axis (Y) incident to the entry (101) and exit (102) surface, and are arranged with the entry face (104) substantially overlapping the entry surface (101) and with the exit face (105) substantially overlapping the exit surface (102), at least one element of optically absorbing and/or non-transparent material (108, 109; 109′) configured and arranged with respect to the channels (103) so as to reduce and/or substantially prevent the passage of light between adjacent channels (103) of the plurality of channels and so as to reduce the passage of light parallel to the channels and externally thereto, or at least a first element of optically absorbing material (108) configured and arranged with respect to the channels (103) so as to reduce and/or substantially prevent the passage of light between adjacent channels (103) of the plurality of channels (103) and at least a second element of optically non-transparent material (109; 109′) configured and arranged with respect to channels (103) so as to reduce and/or substantially prevent the passage of light parallel to the channels (103) and externally thereto through interspaces between adjacent channels (103); wherein the channels (103) have a refractive index whose value decreases starting from a maximum refractive index (na) along a radially outward direction away from the channel axis (Y) passing through a centre of gravity of a section of the respective channel (103), so as to define a radial profile of refractive index of the channels, and wherein the radial profile of refractive index of the channels (103) is configured such that the light rays crossing any channel (103) of the plurality of channels and belonging to a beam of rays emerging from any point on an edge of an entry face (104) of the channel exit the exit face (105) of the channel with substantially parallel directions.