公开(公告)号：US20230263142A1

公开(公告)日：2023-08-24

申请号：US18024115

申请日：2021-09-03

Applicant: SIGNIFY HOLDING B.V.

Inventor： MASSIMO TUMOLO ,  SRI ANDARI HUSEN ,  MARCELLINUS PETRUS CAROLUS KRIJN ,  LAMBERTUS ADRIANUS MARIN DE JONG ,  YANNICK MARTINUS DENISE MOREL

IPC: A01K63/06 ,  F21V14/04 ,  F21V23/04

CPC classification number: A01K63/06 ,  F21V14/04 ,  F21V23/0471 ,  F21W2131/308

Abstract: An aquaculture luminaire (10, 12) generates below the water surface upward light (26) and downward light (24). The upward light (26) is all directed with an angle to the vertical greater than a threshold angle. The division of light between the upward and downward directions may be configurable. Alternatively or additionally, the threshold angle may be configurable so that it ensures the light exceeds the angle for total internal reflection at the water surface. In this way, the luminaire is adaptable to the intended installation position of the luminaire and/or the prevailing water surface conditions (e.g. waves).

公开(公告)号：US20230137309A1

公开(公告)日：2023-05-04

申请号：US17912515

申请日：2021-03-11

Applicant: SIGNIFY HOLDING B.V.

Inventor： MICHEL CORNELIS JOSEPHUS MARIE VISSENBERG ,  BARTEL MARINUS VAN DE SLUIS ,  LEENDERT TEUNIS ROZENDAAL ,  MARCELLINUS PETRUS CAROLUS KRIJN

IPC: F21V7/00 ,  F21S8/02 ,  F21V14/00

Abstract: A lighting device (1) is provided. The lighting device (1) comprises a cavity (10). The cavity (10) is extending along a longitudinal axis (L) of the lighting device (1). Further, the cavity (10) is defined by an interior surface (11) configured to reflect light impinging upon the interior surface (11) of the cavity (10). The cavity (10) has an opening (12) permitting light inside the cavity (10) to exit the cavity (10). The lighting device (1) further comprises an optical module (20). The optical module (20) is arranged in or at the opening (12) of the cavity (10), and is configured to transmit light impinging upon a surface (21) of the optical module (20) through the optical module (20). The light transmitted through the optical module (20) is emitted from the lighting device (1). The lighting device (1) further comprises a plurality of light emitting elements (31). The light emitting elements (31) are arranged in a succession along the longitudinal axis (L) of the lighting device (1) and arranged in the cavity (10), and are configured to emit first light (41). The first light (41) is impinging on the surface (21) of the optical module (20) without having first impinged on the interior surface (11) of the cavity (10). The light emitting elements (31) are further configured to emit second light (42). The second light (42) is impinging on the interior surface (11) of the cavity (10). The optical module (20) is configured to collimate the first light (41) in a transverse plane. The transverse plane is perpendicular to the longitudinal axis (L) of the lighting device (1). The optical module (20) is further configured to produce collimated light so as to increase the degree of collimation of light, in the transverse plane, transmitted from the optical module (20) as compared to the first light (41) prior to transmission through the optical module. At least one of the interior surface (11) of the cavity (10), the plurality of light-emitting elements (31) and the optical module (20) is or are configured such that the second light (42), reflected by the interior surface (11) of the cavity (10) and subsequently having impinged upon the surface (21) of the optical module (20) and transmitted from the optical module (20), is light for which at least 3% of the total luminous flux is in the wavelength range 400-470 nm.