Multi-layered skylight

US4223493A · kind A · utility

Assignee

• Rohm Co., Ltd. · JP

Inventors

• Theodor P. Moench · Heubach, DE
• Friedrich Hanstein · Groß-Zimmern, DE

Key dates

• Filing date: Sep 20, 1978
• Grant date: Sep 23, 1980
• Expiry date: Sep 20, 1998

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F21V29/00
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A multi-layered skylight having an outer element with a central domed portion and a downwardly extending circumferential skirt portion, said outer element comprising a monolayer of a synthetic resin which transmits light, and an inner element of one-piece construction with a central domed portion and a substantially planar circumferential edge portion, said inner element comprising at least two sheets of a synthetic resin which transmits light, said sheets being substantially parallel to one another and having a plurality of supporting elements extending therebetween, said elements being arranged with the planar edge portion of said inner element being within and surrounded by the circumferential skirt portion of said outer element and with the central domed portions of said inner and outer elements being in a substantially parallel spaced relationship to one another.