Ledil emphasises “sharp cut-off and minimised spill light providing high contrast between highlighted objects and their surroundings, ideal for non-glare retail lighting”, for its Carmen-90 narrow-beam (nominally ~10°) optic for CoBs with light emission diameters up to 14.5mm. It is 90mm in diameter, and includes an attached mechanical interface (so no enveloping holder) to mate with combined CoB ...
This story continues at Little spill from narrow architectural and retail optic
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from Electronics Weekly https://www.electronicsweekly.com/blogs/led-luminaries/little-spill-narrow-architectural-retail-optic-2019-04/
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