Invention Grant
- Patent Title: Lighting device and stage light fixture comprising a plurality of such lighting devices
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Application No.: US17735580Application Date: 2022-05-03
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Publication No.: US11703207B2Publication Date: 2023-07-18
- Inventor: Marco Angelini , Aris Quadri , Alberto Alfier , Renato Frison , Davide Ferrati
- Applicant: OSRAM GmbH , CLAY PAKY S.p.A
- Applicant Address: DE Munich
- Assignee: CLAY PAKY S.p.A.
- Current Assignee: CLAY PAKY S.p.A.
- Current Assignee Address: IT Seriate
- Agency: DLA Piper LLP (US)
- Priority: IT 2021000011456 2021.05.05
- Main IPC: F21V7/00
- IPC: F21V7/00 ; F21V7/07 ; F21V7/06 ; F21V8/00 ; F21W131/406

Abstract:
A lighting device produces scenic effects including a light source group; a light guide extending along a longitudinal axis and coupled to the light source assembly defining an optical path; a primary mirror arranged along the longitudinal axis facing the light source assembly to reflect the light beam from the light guide; and a secondary mirror facing the primary mirror to reflect the light beam reflected by the primary mirror towards an emission area surrounding the primary mirror, wherein a primary reflecting surface of the primary mirror has at least one first portion having a first hyperbolic shape or a first aspherical shape of even order and degree equal to or greater than four and a secondary reflecting surface of the secondary mirror has at least one second portion having a second hyperbolic shape or a second aspherical shape of even order and degree equal to or greater than four.
Public/Granted literature
- US20220357016A1 LIGHTING DEVICE AND STAGE LIGHT FIXTURE COMPRISING A PLURALITY OF SUCH LIGHTING DEVICES Public/Granted day:2022-11-10
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