US4991065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting system
Assignee: Individual
•
Filing: 1989-06-21
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Granted: 1991-02-05
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Expires: 2009-06-21
Abstract
Abstract A lighting system is described for the uniform illumination of restricted working surfaces in which a large area reflector is used which partially spans the working surface and which is for example positioned above the head height of a standing person. This large area reflector is mounted on a vertical support which simultaneously carries the light source required to irradiate this large area reflector.
Inventors
- 👤 Hartmut S. Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:57
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/0008; F21V7/0016; F21S; F21S2/00; F21S6/00; F21S6/002; F21S6/003; F21V14/00; F21V14/04; F21V21/00; F21V21/06; F21V23/00; F21V23/02; F21W; F21W2131/00; F21W2131/40; F21W2131/402
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
172 words
An illuminating system, in particular for the uniform illumination of restricted working surfaces, including at least one light source and at least one reflector associated with the at least one light source, comprising: a table having a working surface; the reflector being formed as a large area reflector, said reflector at least partially spanning said working surface, said large area reflector including a frame covered with a reflecting material under tension; a vertical carrier upon which said large area reflector is held, and upon which said table is secured to; the at least one light source which radiates towards the large area reflector is mounted on said vertical carrier in the region between the working surface of said table and the large area reflector; said large area reflector being formed as a triangular sail; and one end of said sail having a bar and a tensioning member extending from the bar to an apex of said sail remote from the bar to mount said sail adjacent its apex on said vertical support.
Claim 2
Dependent Claim
172 words
An illuminating system, in particular for the uniform illumination of restricted working surfaces, including at least one light source and at least one reflector associated with the at least one light source, comprising: a table having a working surface; the reflector being formed as a large area reflector, said reflector at least partially spanning said working surface, said large area reflector including a frame covered with a reflecting material under tension; a vertical carrier upon which said large area reflector is held, and upon which said table is secured to; the at least one light source which radiates towards the large area reflector is mounted on said vertical carrier in the region between the working surface of said table and the large area reflector; said large area reflector being formed as a triangular sail; and one end of said sail having a bar and a tensioning member extending from the bar to an apex of said sail remote from the bar to mount said sail adjacent its apex on said vertical support.
Claim 3
Dependent Claim
36 words
Lighting system in accordance with claim 1, characterized in that the large area reflector (4) is adjustable on the vertical support (3) with respect to the spacing from and the inclination to the working surface (2).
Claim 4
Dependent Claim
27 words
Lighting system in accordance with claim 1, characterized in that the fixing hinge (7) is formed in the manner of a fixable pivot joint or ball joint.
Claim 5
Dependent Claim
31 words
Lighting system in accordance with claim 1 characterized in that the large area reflector (4) is provided with a counterweight (8) which is preferably adjustable relative to the fixing hinge (7).
Claim 6
Dependent Claim
27 words
Lighting system in accordance with claim 1 characterized in that the light source (5) is vertically adjustably and/or pivotally mounted and fixable on the vertical support (3).
Claim 7
Dependent Claim
35 words
Lighting system in accordance with claim 1 characterized in that a ballast (6) necessary for the particular light source (5) is formed as a separate unit which is likewise mounted on the vertical support (3).
Claim 8
Dependent Claim
43 words
Lighting system in accordance with claim 1 characterized in that the vertical support (3) comprises mutually couplable and fixable individual sections; and in that support sections and supporting functional sections for the light source (5) and ballast (6) are combinable as individual sections.
Claim 9
Dependent Claim
45 words
Lighting system in accordance with claim 1 characterized in that the vertical support (3) is at least capable of being mechanically coupled with a connection unit (11) provided in an edge region of the working surface or in a corner region of the working surface.
Claim 10
Dependent Claim
20 words
Lighting system in accordance with claim 8, characterized in that the connection unit (11) is formed as a mechanical/electrical interface.
Claim 11
Dependent Claim
54 words
Lighting system in accordance with claim 1 characterized in that a direct light source (15), in particular a direct light source which is horizontally and/or vertically pivotable is mounted on the vertical support (3) in the region between the working surface (2) and the light source (5) associated with the large area reflector (4).
Claim 12
Dependent Claim
140 words
An illuminating system, in particular for the uniform illumination of restricted working surfaces, including at least one light source and at least one reflector associated with the at least one light source, comprising: a table having a working surface; the reflector being formed as a large area reflector, said reflector at least partially spanning the working surface of said table; a vertical carrier upon which said large area reflector is held, and upon which said table is secured to; the at least one light source which radiates toward the large area reflector is mounted on said vertical carrier in the region between the working surface of said table and the large area reflector, said at least one light source associated with the large area reflector simultaneously has a direct light source which radiates toward the working surface of said table.
Claim 13
Dependent Claim
140 words
An illuminating system, in particular for the uniform illumination of restricted working surfaces, including at least one light source and at least one reflector associated with the at least one light source, comprising: a table having a working surface; the reflector being formed as a large area reflector, said reflector at least partially spanning the working surface of said table; a vertical carrier upon which said large area reflector is held, and upon which said table is secured to; the at least one light source which radiates toward the large area reflector is mounted on said vertical carrier in the region between the working surface of said table and the large area reflector, said at least one light source associated with the large area reflector simultaneously has a direct light source which radiates toward the working surface of said table.
Claim 14
Dependent Claim
35 words
Light system in accordance with claim 11 characterized in that the light source associated with the large area reflector (4) is adjustable in its distance to the vertical support (3) by displacement and/or by pivoting.
Claim 15
Dependent Claim
57 words
Lighting system in accordance with claim 11 characterized in that the light source (5) associated with the large area reflector (4) is of tubular construction and extends, starting from the region of the vertical support (3) arranged to the side of the working surface (2) over at least the half of the width of the working surface.
Claim 16
Dependent Claim
30 words
Lighting system in accordance with claim 11 characterized in that the large area reflector (4) extends at least substantially over approximately 2/3 of the width of the working surface (2).
Claim 17
Dependent Claim
46 words
Lighting system in accordance with claim 11 characterized in that the brightness of the indirect light directed towards the working surface (2) via the large area reflector (4) is at least substantially the same as the brightness of the light coming from a direct light source.
Claim 18
Dependent Claim
68 words
Lighting system in accordance with claim 11 characterized in that the terminal unit (11) for the interface installation is provided with a sleeve having a flange (18), with the sleeve having a conical mount for a coupling sleeve (12) which is fixable by means of a threaded tensioning element and which has an external thread at its free end which can be screwed to the vertical support (3).
Claim 19
Dependent Claim
42 words
Lighting system in accordance with claim 11, characterized in that for coupling of the vertical support (3) onto a tube mount the sleeve has an external thread for the screw connection with the corresponding tube mount in place of a connection flange.
References Cited (Backward Citations)
US3851164A
Cited
US4524405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |