ES137122U - New type of screen for the projection of slides and transparency in general, in the full day or artificial light. (Machine-translation by Google Translate, not legally binding) - Google Patents
New type of screen for the projection of slides and transparency in general, in the full day or artificial light. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES137122U ES137122U ES137122U ES137122U ES137122U ES 137122 U ES137122 U ES 137122U ES 137122 U ES137122 U ES 137122U ES 137122 U ES137122 U ES 137122U ES 137122 U ES137122 U ES 137122U
- Authority
- ES
- Spain
- Prior art keywords
- screen
- translation
- slides
- projection
- general
- 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.)
- Granted
Links
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 abstract 1
- 230000004308 accommodation Effects 0.000 abstract 1
- 208000002173 dizziness Diseases 0.000 abstract 1
- 238000005488 sandblasting Methods 0.000 abstract 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
New type of screen for the projection of slides and transparencies in general, in full daylight or artificial light, which being made from a sheet of methyl methacrylate, is characterized essentially because said sheet presents one of its faces treated to sandblasting so that projecting on the other one it offers by that an image without apparent distortion and perfect clarity, with an index of exterior refraction intermediate between the maximum external luminosity and the luminosity of a lamp of 300 watts, this sheet being mounted inside a frame in the form of quadrangular dizziness, with its inner edges bordered by decorative lips, and provided with two folding feet, equipped at the bottom, with rubber slips, the sides of said frame being hollow, and having the top open, so that the screen can be removed of your accommodation at will. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES1968137122U ES137122Y (en) | 1968-03-18 | 1968-03-18 | NEW TYPE OF SCREEN FOR THE PROJECTION OF SLIDES AND TRANSPARENCY IN GENERAL, IN FULL DAYLIGHT OR ARTIFICIAL. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES1968137122U ES137122Y (en) | 1968-03-18 | 1968-03-18 | NEW TYPE OF SCREEN FOR THE PROJECTION OF SLIDES AND TRANSPARENCY IN GENERAL, IN FULL DAYLIGHT OR ARTIFICIAL. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES137122U true ES137122U (en) | 1968-08-16 |
| ES137122Y ES137122Y (en) | 1969-01-16 |
Family
ID=8320649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES1968137122U Expired ES137122Y (en) | 1968-03-18 | 1968-03-18 | NEW TYPE OF SCREEN FOR THE PROJECTION OF SLIDES AND TRANSPARENCY IN GENERAL, IN FULL DAYLIGHT OR ARTIFICIAL. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES137122Y (en) |
-
1968
- 1968-03-18 ES ES1968137122U patent/ES137122Y/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES137122Y (en) | 1969-01-16 |
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