Daylighting device, molding die, and method of manufacturing daylighting film
US10882223B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 4, 2017 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Aug 16, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/2417
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A daylighting device according to an aspect of the invention includes at least a daylighting film that includes a base having optical transparency and daylighting portions having optical transparency and provided on one surface of the base. Each of the daylighting portions has a reflective surface by which light incident on the daylighting portion is reflected and the light reflected by the reflective surface and output from a second surface of the base has a characteristic that the light travels toward a space on a side where the light is incident on the reflective surface, the space being one of two spaces divided by a virtual plane as a boundary which is vertical to the second surface of the first substrate and parallel to a direction of the daylighting portion extending, and intervals s between adjacent daylighting portions are set to various values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.