| Patents for F21K 2 - Light sources using luminescence (2,166) |
|---|
| 03/10/1982 | EP0046861A2 Method for the surface concentration of light |
| 02/24/1982 | EP0046164A2 Utilisation of perylene derivatives for purposes of fluorescence and novel perylene derivatives |
| 12/09/1981 | EP0041274A1 Fluorescent composition having the ability to change wavelengths of light, shaped article of said composition as a light wavelength converting element, and device for converting optical energy to electrical energy using said element |
| 11/03/1981 | US4298802 Method and device for collecting light utilizing a light trap |
| 10/20/1981 | CA1110927A1 Personnel marker device |
| 10/06/1981 | CA1110328A1 Optical communication transmission arrangements |
| 08/11/1981 | CA1106951A1 Optical display arrangements |
| 08/11/1981 | CA1106950A1 Optical display arrangements |
| 08/04/1981 | CA1106479A1 Optical displays |
| 07/22/1981 | EP0032373A1 Light collector systems and the use of anthrapyrimidine derivatives as energy converters in such systems |
| 05/27/1981 | EP0029199A1 Coloured lights, for example for luminous advertising, outdoor and indoor lighting |
| 05/26/1981 | US4269480 Process and apparatus for displaying an image in front of an optical contrasting background |
| 05/19/1981 | US4268709 Generation of electrical energy from sunlight, and apparatus |
| 05/12/1981 | CA1100923A1 Chemical lighting device |
| 04/28/1981 | US4264124 Polymer carriers containing fluorescent particles and polar organic additives |
| 04/21/1981 | CA1099684A1 Emergency lighting device |
| 04/14/1981 | US4261854 Phosphor |
| 04/07/1981 | US4260219 Device for collecting light and method of manufacturing such device |
| 03/24/1981 | US4257676 Device for collecting light |
| 01/14/1981 | EP0022198A1 Arrangement for increasing the brightness of passive display devices |
| 01/13/1981 | US4244636 Display device for the representation of bright images on a dark background and a process for operation of the device |
| 01/07/1981 | EP0021174A1 Radiation image storage panel |
| 12/23/1980 | US4240711 Display device comprising a liquid crystal cell with light valves |
| 12/16/1980 | US4239968 Method and apparatus for recording and reproducing a radiation image |
| 11/26/1980 | EP0019229A1 Device for displaying an image in front of an optically contrasting background |
| 11/25/1980 | US4236078 Method and apparatus for recording and reproducing a radiation image |
| 10/14/1980 | US4227939 Luminescent solar energy concentrator devices |
| 09/17/1980 | EP0015474A1 Method of collecting light and device for putting such a method into use |
| 09/16/1980 | US4222880 Fluorescent material in light receiver |
| 07/15/1980 | US4213153 Process for the optical display of information using lasers |
| 06/11/1980 | EP0011911A1 A method for protecting the liquid components of a chemiluminescent system and a chemiluminescent light-generating system thus protected |
| 05/14/1980 | EP0010991A2 Light source for illuminating objects with enhanced perceived coloration |
| 03/11/1980 | US4193109 Personnel marker device |
| 02/12/1980 | US4188238 Generation of electrical energy from sunlight, and apparatus |
| 02/06/1980 | EP0007645A2 Device for collecting light |
| 02/06/1980 | EP0007644A2 Device for collecting light and process for the manufacture of such a device |
| 02/06/1980 | EP0007635A2 Device for collecting light and process for the manufacture of such a device |
| 01/29/1980 | US4186426 Emergency lighting device |
| 01/15/1980 | US4184193 Multi-purpose lantern |
| 09/25/1979 | USRE30103 Inflatable, chemi-luminescent assembly |
| 06/13/1979 | EP0002190A1 Device for displaying an image in front of an optically contrasting background |
| 08/08/1978 | US4106079 Illuminated drum stick, baton |
| 08/01/1978 | US4104708 Shrouded chemical light source |
| 05/16/1978 | US4089797 Chemiluminescent warning capsules |
| 12/20/1977 | US4064428 Chemical light device |
| 12/20/1977 | US4064064 Stabilization of hydrogen peroxide solutions |
| 12/06/1977 | US4061910 Luminescent jewelry |
| 08/09/1977 | US4041318 Solar heat-light recovery system |
| 08/02/1977 | USRE29334 Phosphor combination and method, particularly adapted for use with explosives, for providing a distinctive information label |
| 07/26/1977 | US4038552 Luminous safety device |
| 07/12/1977 | US4035652 Luminescent backing sheet for writing in the dark |
| 06/28/1977 | US4032351 Rare earth ceramic for frequency conversion of radiation |
| 05/17/1977 | US4024404 Electroluminescent backing sheet for reading and writing in the dark |
| 04/19/1977 | US4018635 Phosphor combination, particularly adapted for use with explosives, for providing a distinctive information label |
| 03/29/1977 | US4015111 Inflatable, chemi-luminescent assembly |
| 11/30/1976 | US3995299 Radiation sources |
| 08/31/1976 | US3978340 Luminescent backing sheet for reading and writing in the dark |
| 08/10/1976 | US3974368 Chemiluminescent device having longer shelf life |
| 06/01/1976 | US3961253 Electrical voltage indicating device |
| 05/25/1976 | US3959655 Light source for optical sound recording and reproduction apparatus |
| 05/25/1976 | US3958970 Method of casting fluorescent lenses |
| 02/24/1976 | US3940605 Chemiluminescent marker apparatus |
| 02/24/1976 | US3940604 Device for emergency lighting |
| 02/10/1976 | US3937968 Optical aiming device employing radioluminous material |
| 01/27/1976 | US3934539 Chemiluminescent foldable signal device |
| 01/20/1976 | US3933488 Information display method |