Linear fluorescent high-bay
a fluorescent and high-bay technology, applied in the field of light-emitting systems, can solve the problems of difficult to provide the necessary efficiency and directivity, high cost and heavy ballast, and insufficient traditional luminaires, and achieve the effects of low cost, high efficiency, and convenient adaptation
Inactive Publication Date: 2005-04-07
RUUD LIGHTING
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- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
[0009] Another object of the invention is to provide a modular linear fluorescent lighting fixture and method where individual reflector panels of the fixture may be replaced without removing the lighting fixture from its installed location and without disassembling the lighting fixture.
[0025] As a result of implementing some of the various aspects of the invention, different areas in stores, warehouses, and commercial buildings may be illuminated by use of lighting fixtures that may be easily adapted for changing a proportion of uplighting versus downlighting, replacing reflector panels, altering a directivity of lighting, providing selectable step dimming, utilizing motion or similar detection switching, and others. A switching of individual ballasts provides an energy savings and a lower temperature of operation. A high efficiency is provided by utilizing optimized reflector designs. A low profile design allows use where available vertical height is limited.
Problems solved by technology
As a low-power, low-cost alternative to expensive high intensity discharge (HID) type lamps that may generate excessive heat, require expensive and heavy ballasts, or that may be of a design not readily adaptable to different lighting applications, many commercial lighting installations utilize fluorescent lamp fixtures.
Although it may be advantageous to provide fluorescent lighting in these applications, it may be difficult to provide the necessary efficiency and directivity.
In addition, traditional luminaries may be inadequate, for example, in buildings such as warehouses, which have high ceilings necessary to accommodate high stacking and shelving of items.
For lighting fixtures of both the compact and linear fluorescent type it may be difficult to adapt to various lighting requirements and applications in a high bay.
Traditional high bay lighting may not be optimized because, although it is important that light be efficiently directed downwardly from a high location onto an illuminated surface, many high bay lighting situations may include areas that require less light some or all of the time.
Method used
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Embodiment Construction
[0042]FIGS. 1-2 show a linear fluorescent high-bay fixture 1 according to an embodiment of the present invention. Individual cells 10 are formed to each include a linear fluorescent tube 12 and a pair of tube sockets 11. The fluorescent tube 12 is typically a tubular discharge vessel made of glass, into the end caps of which thermionic cathodes are melted. The tube 12 is typically formed by being evacuated and filled with argon and mercury. At both end caps of the tube 12, the thermionic cathodes are routed to the outside as two terminals each. Therefore, the tube 12 generally has two electrical terminals (not shown) at each lengthwise end, and the pairs of sockets 11 are each located so that a corresponding tube 12 may be inserted into a respective pair of sockets 11 by moving the tube 12 into position where the terminals slide into a lateral slot (not shown), whereupon the tube 12 is rotated until the terminals are engaged with the socket 11 in a known manner. The tube 12 typicall...
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A method, for implementing lighting by utilizing a lighting fixture having a plurality of laterally-spaced light source locations and corresponding lateral reflector positions, may include selectively installing a reflector of a first type or a second type in respective ones of the plurality of lateral reflector positions, the first type reflector having greater uplighting capacity compared to the second type reflector, whereby the selectively installing determines a proportion of uplight versus downlight. For a plurality of tube positions disposed in a plane, a method may include vertically positioning a reflector assembly with respect to the plane. Individual reflector panels may be replaced by flexing the panel. A method may include providing a sensor switch operative to detect an occupant and connect an electrical path when the occupant is detected, and providing a selector for selecting ones of the ballasts to be connected to the electrical path by the sensor switch.
Description
BACKGROUND [0001] 1. Field of the Invention [0002] The present invention relates to lighting systems and, more particularly, to reflector type fixtures optimized for use in an industrial facility. [0003] 2. Background of the Invention [0004] Fluorescent lighting fixtures are used in various applications such as being recessed in hung ceilings or being used as stand-alone units hung, for example, from the rafters of an industrial or commercial building. Traditionally, fluorescent lighting fixtures have been used in such recessed applications because they generate much less heat than other types of lighting units, e.g., high intensity discharge, and because they may have a physical package with a short height and / or a small width (depending on the number of tubes in the fixture). [0005] Many areas in stores, warehouses, and commercial buildings are illuminated by various free-standing types of lighting fixtures that may be suspended from the ceiling, such lighting fixtures typically c...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F21S8/06F21V7/00F21V14/02F21V14/04F21V15/015F21V17/10F21V17/16F21V23/02F21V23/04F21V29/00
CPCF21S8/06F21Y2113/00F21V7/005F21V7/0091F21V14/02F21V14/04F21V15/015F21V17/104F21V17/16F21V23/02F21V29/004F21Y2103/00Y02B20/386F21V23/0471F21V7/22F21V7/0016F21V7/10F21V17/002F21V29/502F21V7/24Y02B20/30
InventorHAUGAARD, ERIC J.RALEIGH, CRAIGRUUD, ALAN J.BUCHANAN, DALLAS I.
OwnerRUUD LIGHTING