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Class Information
Number: 353/3
Name: Optics: image projectors > Heliostats
Description: Subject matter wherein solar light is employed to project an image and comprising essentially a reflector and mechanism for causing it to follow the apparent movement of the sun so as to keep the direction of the reflected light constant and appropriate for projecting the image.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7339714 |
Variable blazed grating based signal processing |
Mar. 4, 2008 |
| 7300168 |
System for creating spectral displays |
Nov. 27, 2007 |
| 7207327 |
Feedback control method for a heliostat |
Apr. 24, 2007 |
| 6984050 |
Heliostat for sunlight concentration system and method of controlling the same |
Jan. 10, 2006 |
| 6971747 |
Image display device having a compensating prism group |
Dec. 6, 2005 |
| 6827445 |
Sun-tracking daylighting apparatus |
Dec. 7, 2004 |
| 6493145 |
Solar lighting apparatus |
Dec. 10, 2002 |
| 6433932 |
Solar lighting apparatus |
Aug. 13, 2002 |
| 5934271 |
Large aperture solar collectors with improved stability |
Aug. 10, 1999 |
| 5758938 |
Solar concentrator elevational drive mechanism |
Jun. 2, 1998 |
| 5707458 |
Light converging solar module |
Jan. 13, 1998 |
| 5632823 |
Solar tracking system |
May. 27, 1997 |
| 5467257 |
Solar panel unit and solar lamp including same |
Nov. 14, 1995 |
| 5253637 |
Hyperfocal tracking solar thermal collector |
Oct. 19, 1993 |
| 4995377 |
Dual axis solar collector assembly |
Feb. 26, 1991 |
| 4930493 |
Multi-lever rim-drive heliostat |
Jun. 5, 1990 |
| 4887589 |
Solar energy tracking structure incorporating wind spoilers |
Dec. 19, 1989 |
| 4870949 |
Wind resistant two axis tracker for energy or radiation concertrators |
Oct. 3, 1989 |
| 4836672 |
Covert optical system for probing and inhibiting remote targets |
Jun. 6, 1989 |
| 4832002 |
Unified heliostat array |
May. 23, 1989 |
| 4799763 |
Paraxial stereoscopic projection system |
Jan. 24, 1989 |
| 4794909 |
Solar tracking control system |
Jan. 3, 1989 |
| 4791533 |
Natural lighting apparatus |
Dec. 13, 1988 |
| 4742813 |
Sunshield device |
May. 10, 1988 |
| 4712876 |
Driving ferroelectric liquid crystal printers via short circuiting |
Dec. 15, 1987 |
| 4658805 |
Thermo-hydraulic power supply |
Apr. 21, 1987 |
| 4628142 |
Solar tracking mechanisms |
Dec. 9, 1986 |
| 4625709 |
Tracking solar collector installation |
Dec. 2, 1986 |
| 4594470 |
Solar generator mounting structure |
Jun. 10, 1986 |
| 4585318 |
Tracking device |
Apr. 29, 1986 |
| 4583520 |
Balanced solar concentrator system |
Apr. 22, 1986 |
| 4564275 |
Automatic heliostat track alignment method |
Jan. 14, 1986 |
| 4519381 |
Solar heating apparatus and method |
May. 28, 1985 |
| 4484565 |
Device for sensing moving light source |
Nov. 27, 1984 |
| 4466423 |
Rim-drive cable-aligned heliostat collector system |
Aug. 21, 1984 |
| 4459972 |
Heliostat assembly |
Jul. 17, 1984 |
| 4458670 |
Orientation mount for a solar heating module |
Jul. 10, 1984 |
| 4457297 |
Modular solar concentrator |
Jul. 3, 1984 |
| 4440150 |
Heliostat control |
Apr. 3, 1984 |
| 4439767 |
Lightweight optical jammer system |
Mar. 27, 1984 |
| 4439020 |
Sunrays focusing apparatus |
Mar. 27, 1984 |
| 4429178 |
Solar tracking apparatus utilizing photovoltaic flat panels and method |
Jan. 31, 1984 |
| 4425904 |
Tracking system for solar collectors |
Jan. 17, 1984 |
| 4424802 |
Pneumatic drive for solar concentrators |
Jan. 10, 1984 |
| 4424801 |
Solar direction sensor |
Jan. 10, 1984 |
| 4419981 |
Sun tracking apparatus |
Dec. 13, 1983 |
| 4402582 |
Parasitic driven heliostat mirror declinator |
Sep. 6, 1983 |
| 4401103 |
Solar energy conversion apparatus |
Aug. 30, 1983 |
| 4396006 |
Solar powered, solar aiming device |
Aug. 2, 1983 |
| 4387702 |
Solar tracking system |
Jun. 14, 1983 |
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