REMOTE OPTICAL PUMPING OF LUMINESCENT CONCENTRATION RODS
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United States of America Patent
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Oct 15, 2020
app pub date -
May 29, 2017
filing date -
Jun 2, 2016
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Abstract
The invention provides a lighting device (1) comprising: —a luminescent concentrator (5) comprising an elongated light transmissive body (100) having a first face (141) and a second face (142) defining a length (L) of the light transmissive body (100), the light transmissive body (100) comprising one or more radiation input faces (111) and a radiation exit window (112), wherein the second face (142) comprises said radiation exit window (112); the elongated light transmissive body (100) comprising a luminescent material (120) configured to convert at least part of light source light (11) received at one or more radiation input faces (111) into luminescent material light (8), and the luminescent concentrator (5) configured to couple at least part of the luminescent material light (8) out at the radiation exit window (112) as converter light (101); —a light source mirror unit (200) comprising: —a plurality of light sources (10) configured to provide said light source light (11) in a direction of a curved mirror (220); —said curved mirror (220), configured to collect at least part of said light source light (11) and configured to redirect the collected light source light (11) to at least one of the one or more the radiation input faces (111) of the luminescent concentrator (5)
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