Illumination – With static structure – Wall or ceiling
Patent
1991-08-20
1994-03-08
Cole, Richard R.
Illumination
With static structure
Wall or ceiling
362290, 362346, 126686, F21S 314, F21V 709
Patent
active
052933059
DESCRIPTION:
BRIEF SUMMARY
the invention relates to a light guidance system according to the preamble of patent claim 1.
In the wake of increased use of solar energy to overcome energy problems passive light guidance systems have increasingly gained in importance. With such passive systems for example the sunlight is controlled in such a way that in winter it is permitted to pass and in summer it is reflected. Hereby in winter active heating elements and in summer active cooling elements can be dispensed with or they can at least be significantly reduced.
In a known arrangement for the automatic control of the incidence of light with light-impermeable wall parts disposed parallel one above the other and at a distance from one another the energy passage or the shading during the seasonal transition period is precisely determined (EP-C-0 029 442). However, this arrangement is only intended for regulating daylight.
A device for illuminating rooms with daylight and artificial light is, however, also known in which a first reflector projects daylight and a second reflector artificial light onto the ceiling of a room so that in both cases indirect lighting results (DE-B-631 798). Of disadvantage herein is that the first reflector projects toward the outside like an extended window sill while the second reflector is fastened on the ceiling in the manner of a lamp shade reflecting upward.
In another show-window illumination a transparent protective roof of prism glass is disposed above the show-window opposite an obliquely disposed mirror (DE-B-517 827). The light falling through the protective roof is therein guided onto the items exhibited in the show-window. On the ceiling of the show-window room, furthermore, is disposed a luminaire whose light falls directly and via the mirror onto the items exhibited. Although the mirror reflects artificial as well as also natural light the entire illumination device is very expensive because it requires a cumbersome protective roof.
Furthermore, a method for the distribution of light in a closed room with at least one window face as room boundary is known in which the window of the window face is horizontally divided into two unequal parts and specifically into a translucent upper window and into a transparent view window (DE-A-37 29 553). Herein the light through the upper window is carried nearly horizontally or slightly obliquely with respect to a reflecting ceiling surface while the light streaming in through the view window experiences behind this window a deflection in the upward direction against the reflecting ceiling surface. Of disadvantages in this known method is the division into two window portions because this division requires bars and fins which are horizontally oriented and projecting.
Also known is an arrangement for the illumination of interior areas with natural daylight having a light channel between a building ceiling and a drop ceiling (DE-A-35 45 419). Herein a light collector is provided on the outside of the building before the light channel and a band-form light distribution device adjoining the light channel for the distribution and guidance of the daylight into the interior of the room. This light distribution device can be provided additionally with an artificial light band. Of disadvantage in this arrangement is the fact that the room is made smaller through the drop ceiling and a light collector projecting toward the outside is required. The same disadvantage is true of another known arrangement for illuminating inner rooms in which a transparent ceiling is hung below the building ceiling (DE-A-35 23 523).
With a further known method for controlling in rooms radiation energy in the entire spectral range without use of external energy maximum advantageous conditions with respect to light, heat, and sound are said to be created throughout the entire room (EP-B-0 020 296). In order to achieve this goal, on the one hand, rays generated in the room itself as well as also in other places and radiated in through the window and deflected through reflectors in the direction of
REFERENCES:
patent: 693088 (1902-02-01), Wadsworth
patent: 3113728 (1963-12-01), Boyd
patent: 4220137 (1980-09-01), Tesch et al.
patent: 4223663 (1980-09-01), Carmichael et al.
patent: 4228789 (1980-10-01), Kay
patent: 4337754 (1982-07-01), Conger
patent: 4351588 (1982-09-01), Zullig
Cole Richard R.
Quach Y.
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