Ceiling-Mounted Type Lighting Device

A light-receiving unit containing four optical sensors arranged crosswise and a light-shielding body containing four through-holes confronting light-receiving surfaces of the optical sensors, and a tilt adjustment mechanism containing first and second movable bodies which are mounted on first and se...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Yoshizawa, Takahito, Sasaki, Michiru
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	A light-receiving unit containing four optical sensors arranged crosswise and a light-shielding body containing four through-holes confronting light-receiving surfaces of the optical sensors, and a tilt adjustment mechanism containing first and second movable bodies which are mounted on first and second rotation shafts arranged on a same plane to cross at right angles are provided. The tilt adjustment mechanism is mounted in a housing constituting a ceiling-mounted type lighting device and the light-receiving unit and a lighting lamp are mounted on a rotational center axis of the second moving body. Tilt adjustment light emitted from a treatment table hits the optical sensors via the light-shielding body.