ES312064A1 - A provision to control electrical lighting within a dark space, for example, in a tunnel. (Machine-translation by Google Translate, not legally binding) - Google Patents
A provision to control electrical lighting within a dark space, for example, in a tunnel. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES312064A1 ES312064A1 ES0312064A ES312064A ES312064A1 ES 312064 A1 ES312064 A1 ES 312064A1 ES 0312064 A ES0312064 A ES 0312064A ES 312064 A ES312064 A ES 312064A ES 312064 A1 ES312064 A1 ES 312064A1
- Authority
- ES
- Spain
- Prior art keywords
- dark space
- tunnel
- translation
- lighting
- variation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
An arrangement for controlling electric lighting within a dark space, for example in a tunnel, with dependence on lighting outside this dark space, the arrangement of which includes a photosensitive element exposed to external illumination, which is coupled to the lighting system of the dark space so that over a given range of control a variation of the intensity of the illumination over the place of this photosensitive element produces a variation in the same direction in the intensity of illumination in the dark space, characterized in that another photosensitive element is exposed to the lighting inside the dark space and is connected in an electrical circuit so that, by a variation of the illumination intensity on the place of this second element, an influence is exerted that counteracts this variation, on the lighting system inside the dark space. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES0312064A ES312064A1 (en) | 1965-04-21 | 1965-04-21 | A provision to control electrical lighting within a dark space, for example, in a tunnel. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES0312064A ES312064A1 (en) | 1965-04-21 | 1965-04-21 | A provision to control electrical lighting within a dark space, for example, in a tunnel. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES312064A1 true ES312064A1 (en) | 1965-08-16 |
Family
ID=34502493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0312064A Expired ES312064A1 (en) | 1965-04-21 | 1965-04-21 | A provision to control electrical lighting within a dark space, for example, in a tunnel. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES312064A1 (en) |
-
1965
- 1965-04-21 ES ES0312064A patent/ES312064A1/en not_active Expired
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