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Cable grid spectral lighting system
| Details |
Inventors: Douglass, II, Myrl Rae;
Assignee:
Primary Examiner: Husar; Stephen
Assistant Examiner: Alavi; Ali
Attorney, Agent or Firm: Garvey, Smith, Nehrbass & Doody, L.L.C.
An apparatus consisting of a cable grid system for lighting in which a light can be positioned at any location on a ceiling. Optionally, the light fixtures can include a diffraction grating reflector (such as a music CD) to reflect light patterns onto the ceiling from a light source which is preferably a point source. Also, light fixtures with diffraction grating reflectors could be mounted on a wall, table, or on the ceiling without using a cable grid system. |
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DETAILED DESCRIPTION OF THE INVENTION As shown in FIGS.
1 and 2, the basic components of the trapeze grid lighting system are the support cables 1 charged with positive low voltage current, the support cables 2 charged with negative low voltage current, the main body 3 of the lighting fixture housing the light source 6, the support arm 4 conducting negative low voltage current, and the support arm 5 conducting positive low voltage current.
The support cables 1, 2 are attached to, and span the distance between, two opposing walls or surfaces 7 in a space.
The support cables are preferably all mounted at the same height at a distance below the projected surface (ceiling plane) 8 to allow for proper clearance of the main body of the lighting fixture 3.
The support cables preferably are not insulated, and can be made and mounted in the same manner as the cables in other suspension wire lighting systems (such as the Yayaho brand lighting system commercially available from Ingo Maurer GMBH of Germany).
The support cables are preferably mounted parallel to each other at a distance that is proportionally correct for the space.
The lines 1 and 2 are suspended using a turnbuckle assembly, for example.
The support arms 4, 5 of the lighting fixture preferably rest directly on top of two adjacent support cables, each conducting opposing poles of current from each cable.
The lighting fixture 3 is preferably balanced so that gravity holds it onto the support cables no matter what distance it is placed from either cable.
This balance not only allows it to be placed in any position along the length of the support wires, but in any position in the axis perpendicular to the wires as shown in FIG.
1.
The position of the light can preferably be changed so that it can be centered directly over certain objects or places within a space, such as a dining room table.
FIG.
2 shows how light is distributed from the fixture.
A circular pool of light is created by white light 20, that has passed through the open center of the diffraction grating
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Optical Systems 
