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Optical element
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Light diode multi-modular device
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Light diode modular device
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Polymer-coated light-emitting diode module
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Polymer-coated semiconductor light source
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Led-based optical unit
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Optical smoke detector
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Illuminator built around leds
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Led with double-layer compound zone
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Luminous plate
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Rotary lighting device
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Sealed lighting device
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Liquid flow illuminator
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Light-emitting semiconductor module
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Light-emitting semiconductor heterostructure
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Light-dissipating lens for traffic lights
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Smoke detector
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