Patents
Patents for F21S 11 - Non-electric lighting devices or systems using daylight (1,674)
11/1994
11/10/1994CA2159722A1 Structured films and use thereof for daylight illumination
10/1994
10/06/1994DE4310718A1 Device for automatically controlling the incidence of light into a room
10/06/1994DE4310717A1 Light-guiding elements for daylight
09/1994
09/21/1994EP0563241B1 Light control film with reduced ghost images
09/15/1994WO1994020787A1 Illumination device
08/1994
08/30/1994US5343330 Double refraction and total reflection solid nonimaging lens
08/25/1994DE4336763A1 Device for avoiding sunrays and similar sources of light shining in directly through windows
08/03/1994EP0609133A1 System for illuminating and scanning a document
06/1994
06/15/1994EP0601202A1 Light transmittable members, and method of adjusting natural lighting quantity and natural lighting range by use of the light transmittable members
05/1994
05/11/1994EP0493419A4 Illuminating apparatus
04/1994
04/27/1994EP0593915A1 Method and device for illuminating the entrance portions of tunnels, particularly of tunnels in highways and motorways
03/1994
03/31/1994WO1994006979A1 Improvements in skylights
03/17/1994WO1994006046A1 Optical reflector arrays and apparatus using such arrays
03/15/1994US5295051 For transmitting incident light
03/08/1994US5293305 Light guidance system for the illumination of an interior area
02/1994
02/16/1994EP0582832A2 Reflector element and arrangement of sucle elements for indirect room lighting
02/10/1994DE4326525A1 Watertight lighting unit for use underwater or range of suspended applications - has light source output transmitted through flexible tube to outlet point with tube sealed against water ingress
02/08/1994US5285315 Apparatus and method for optimizing useful sunlight reflected into a room
02/03/1994DE4225007A1 Skylight with several transparent segments, distributed round centre - has segments with different deflection angle, corresp. to sun angle in respective azimuth regions
02/03/1994DE4225006A1 Skylight with two plates covering different surface regions - has plates as light guides deflecting light impinging from zenith in opposite main reflecting direction
01/1994
01/13/1994DE4222897A1 Reflector-prism system for natural or artificial light for intended spatial zones - has one-piece combination of reflection, transmission and diffraction units made from transparent glass or plastics material
12/1993
12/23/1993WO1993025792A1 Light transmittable members, and method of adjusting natural lighting quantity and natural lighting range by use of the light transmittable members
12/02/1993DE4215968A1 Light guiding structure for illuminating at least part of room with daylight - utilises daylight entering room through window assisted by elements located on wall or ceiling to reflect the light
11/1993
11/03/1993CN2145311Y Light guide transmission light apparatus
10/1993
10/28/1993DE4211083A1 Automatic control regulating incidence of light in living or work-place room - uses stack of similar profiled deflectors having three reflective concave surfaces
10/07/1993DE4211085A1 Double glazed window with internal reflectors - has slats arranged to deflect sun's rays to provide more effective illumination in room
10/06/1993EP0563241A1 Light control film with reduced ghost images.
09/1993
09/16/1993DE4240058A1 Light concentrating or deflecting device
09/15/1993EP0560107A1 Device for concentrating or deflecting light
08/1993
08/17/1993US5237169 Installation for controlling the lighting level of premises
08/17/1993US5237168 Control of the level of illumination premises
08/05/1993WO1993015427A1 Energy efficient skylight and blind
05/1993
05/27/1993WO1993010393A1 A light collection system for a skylight
05/27/1993DE4239003A1 Sun protection with light directing properties - involves lamellas of specific cross-sectional configuration with undersides having profiling providing predetermined light direction for diffuse sky radiation in room
04/1993
04/20/1993US5204777 Energy efficient skylight and blind
04/01/1993WO1993006413A1 Sunlight collecting and transmitting system
03/1993
03/31/1993EP0534853A1 Double refraction and total reflection solid non-imaging lens
03/26/1993CA2078839A1 Double refraction and total reflection solid nonimaging lens
03/16/1993US5193900 Illumination device
01/1993
01/27/1993EP0524388A2 Natural light device
01/07/1993EP0521818A1 Room illumination control system
01/05/1993US5175967 Natural light distributing apparatus
12/1992
12/09/1992EP0517650A1 Automatic room lighting control installation
07/1992
07/09/1992WO1992011549A1 Light control film with reduced ghost images
07/08/1992EP0493419A1 Illuminating apparatus
06/1992
06/04/1992DE4038500A1 Internal room or display panel illumination appts. using daylight or artificial light - has light-conducting plate with light-collecting layer including layer of liquid crystal cells and transmitting part having transmissivity-controlled layer
06/02/1992US5117811 Concentric lighting and air conditioning fixture
05/1992
05/26/1992CA1301729C Natural lighting apparatus
04/1992
04/02/1992WO1992005334A1 Natural light control system applicable on the outside of windows for energy saving and visual comfort
12/1991
12/18/1991EP0461137A1 Light deflecting system for lighting an indoor area.
07/1991
07/02/1991US5027550 Apparatus for cultivating aquatic living things in sea water
06/1991
06/11/1991US5022736 Solar ray device for illumination
04/1991
04/11/1991DE3931594A1 Heat insulating, transparent outer building wall component - has outer panel with numerous optical elements, with focal planes in heat insulating layer plane
04/09/1991US5005931 Light radiator
03/1991
03/09/1991WO1991003682A1 Illuminating apparatus
03/09/1991CA2066412A1 Illuminating apparatus
01/1991
01/08/1991US4982723 Solar energy
12/1990
12/25/1990US4979492 Solar ray collecting device
12/18/1990US4978198 System for reflecting rays from an exterior source into a structure
11/1990
11/29/1990DE3916688A1 Reflector system for boom lighting
10/1990
10/03/1990CN1045867A Light radiator
09/1990
09/26/1990CN1045651A Solar ray collecting device
09/13/1990CA2009482A1 Light radiator
09/05/1990EP0029442B2 Plant for the automatic control of the incident solar flux
09/03/1990CA2009481A1 Solar ray collecting device
08/1990
08/30/1990DE3906229A1 Daylight system assisted by indirect lighting
08/29/1990WO1990010176A1 Light deflecting system for lighting an indoor area
08/29/1990CA2045410A1 Light guidance system for the illumination of an interior area
08/08/1990CN1044539A Solar ray device for illuminaton
07/1990
07/26/1990CA2003490A1 Solar ray device for illumination
07/24/1990US4943141 Solar ray collecting device
07/17/1990US4942292 Apparatus for following sun light
06/1990
06/13/1990CN2058227U Illumination equipment using reflection of sunlight
05/1990
05/29/1990US4928666 Container for accommodating a solar ray-collecting device
05/16/1990CN1042039A Apparatus for cultivating aquatic living things in sea water
05/01/1990US4922088 Automatic solar lighting apparatus having a solar following sensor
05/01/1990CA1268452A1 Light radiator
04/1990
04/10/1990US4915093 Container for accommodating a solar ray-collecting device
04/04/1990CN1007467B Light radiator
03/1990
03/29/1990DE3831318A1 Device for deflecting and channelling light radiation into windowless rooms in combination with a device for ventilating the rooms
01/1990
01/03/1990EP0348538A1 Method of natural light correction in rooms
01/02/1990US4890806 Stand for a solar ray collecting device
12/1989
12/20/1989CN1038155A Solar ray collecting device
11/1989
11/28/1989US4883340 Solar lighting reflector apparatus having slatted mirrors and improved tracker
11/15/1989CN1037203A Stand for solar ray collecting device
10/1989
10/17/1989US4874225 Solar greenhouse roof
09/1989
09/27/1989CN1035880A Container for accommodating solar ray-collecting device
09/12/1989CA1259215A1 Integrated construction of a large number of optical conductor cables
09/12/1989CA1259212A1 Light radiator
09/05/1989CA1259059A1 Light projector
09/05/1989CA1259057A1 Light radiator
08/1989
08/29/1989CA1258789A1 Light diverting device
08/29/1989CA1258784A1 Light radiator
07/1989
07/19/1989CN1034051A Lens holding apparatus
07/12/1989CN1033869A Light ray radiation stand
07/11/1989US4846554 Lens-holding apparatus
07/11/1989CA1257237A1 Arrangement for illuminating a room with daylight
07/04/1989CA1256765A1 Foundation for entraining solar ray collecting devices
06/1989
06/27/1989US4843530 Light ray radiation stand
06/14/1989CN2039431U Solar collector
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