Patent
Wide angle beam pattern lamp
Reads0
Chats0
TLDR
In this article, a vehicular warning light has multiple segments of concave parabolic reflectors assembled for cooperative spreading of the light emitted from a single electric lamp to form an elongated wide angle beam of light in a horizontal plane for alerting the neighborhood to the presence and movement of the emergency vehicle.Abstract:
A vehicular warning light has multiple segments of concave parabolic reflectors assembled for cooperative spreading of the light emitted from a single electric lamp to form an elongated wide angle beam of light in a horizontal plane for alerting the neighborhood to the presence and movement of the emergency vehicle. The axis of revolution of each parabolic reflector is assembled at a differing azimuth angle within the common horizontal plane and the focal points and focal planes of the respective reflectors are dispersed. The equivalent center point of the single light source is therefore defocused relative to at least some of the reflectors. The axis of the elongated light source is centered on the common horizontal plane and is parallel to the fluted light cover lens which is contoured for efficiency in light transmission from the multiple reflectors and for additional spreading and luminous uniformity.read more
Citations
More filters
Patent
Ultraviolet discharge lamp apparatuses having optical filters which attenuate visible light
TL;DR: In this article, a discharge lamp is configured to emit ultraviolet and visible light, an optical filter is used to attenuate visible light and a power circuit is used for operating the discharge lamp.
Patent
Ultraviolet discharge lamp apparatuses with one or more reflectors
Mark Andrew Stibich,James Blaine Wolford,Alexander Nathan Garfield,Martin Rathgeber,Eric Martin Frydendall +4 more
TL;DR: In this article, a discharge lamp is configured to emit ultraviolet light, a power circuit is operated by the discharge lamp, and a reflector system is used to redirect ultraviolet light away from the support structure to a region exterior to the apparatus.
Patent
Lamp and reflector arrangements for apparatuses with multiple germicidal lamps
TL;DR: Germicidal lamp apparatuses are provided with lamps disposed between upper and lower bases of a support structure as discussed by the authors, where the lamps are configured to move the reflector and/or collectively move the lamps during illumination of the lamps.
Patent
Multiple reflector indirect light source lamp
TL;DR: In this article, a light assembly with LESDs mounted opposite to the reflective side of a reflector is presented, in which a plurality of reflectors are arranged in an overlapping fashion such that the light emitted from the LESD of one reflector was directed to a reflective surface of an underlying reflector.
Patent
Germicidal apparatuses with configurations to selectively conduct different disinfection modes interior and exterior to the apparatus
TL;DR: In this paper, the authors present a set of apparatuses which include one or more germicidal sources, power circuitry coupled with the source, a shield, and a processor and processor-executable program instructions for activating the power circuitry to operate at least one source when the source is not encased within the apparatus.
References
More filters
Patent
Lamp with stepped reflector surface containing vertical ribs
TL;DR: In this paper, the front glass is a plain glass having smooth front and rear surfaces, but is provided with elongate ribs in selected zones, to produce a spreading of the light rays reflected from these ribs; the light is spread transversely to the length of the ribs.