OPTICAL-GLASS LENS FOR ELECTRONIC DISPLAY BOARD AND LED ELECTRONIC DISPLAY BOARD USING THE SAME

PURPOSE: An optical lens for an electronic display board and an LED display board using the same are provided to improve the viewing angle of an LED display board by adjusting the emission angle of an optical lens downward. CONSTITUTION: An LED lamp unit comprises an outer cap(25) constituting an ou...

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Hauptverfasser:	HUH, JIN NYOUNG, PARK, BUM JIN, MOON, BYEONG SUP, KANG, WEON EUI
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ADVERTISING BLASTING CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LABELS OR NAME-PLATES LIGHTING MECHANICAL ENGINEERING PHYSICS SEALS SIGNS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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