ES424808A1 - Method of manufacturing a sheet that contains a text that is retroreflecting in all its surface area. (Machine-translation by Google Translate, not legally binding) - Google Patents
Method of manufacturing a sheet that contains a text that is retroreflecting in all its surface area. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES424808A1 ES424808A1 ES424808A ES424808A ES424808A1 ES 424808 A1 ES424808 A1 ES 424808A1 ES 424808 A ES424808 A ES 424808A ES 424808 A ES424808 A ES 424808A ES 424808 A1 ES424808 A1 ES 424808A1
- Authority
- ES
- Spain
- Prior art keywords
- text
- areas
- retroreflective
- microspheres
- sheet
- 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
- Optical Elements Other Than Lenses (AREA)
Abstract
A method of manufacturing a sheet containing a text, which is retroreflective in its entire surface area, the sheet containing a monolayer of glass microspheres with a refractive index of at least 1.8, and having retroreflective text areas and retroreflective background areas, characterized in that it produces a sheet that is substantially transparent, with text and background areas that are substantially indiscernible under observation conditions with ordinary diffused light, but one of the areas has a higher retroreflective efficiency than the other, whereby the text areas are easily visually discernible from the background areas in retroreflective viewing conditions, apply a mirror partially transmitting the light to the rear surface of the microspheres, having the microspheres and the mirrors associated with them. They in the text areas a retroreflective efficiency different from that of the microspheres and s us associated mirrors applied to the background areas. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES424808A ES424808A1 (en) | 1974-03-30 | 1974-03-30 | Method of manufacturing a sheet that contains a text that is retroreflecting in all its surface area. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES424808A ES424808A1 (en) | 1974-03-30 | 1974-03-30 | Method of manufacturing a sheet that contains a text that is retroreflecting in all its surface area. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
Publication Number | Publication Date |
---|---|
ES424808A1 true ES424808A1 (en) | 1976-05-16 |
Family
ID=8466336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES424808A Expired ES424808A1 (en) | 1974-03-30 | 1974-03-30 | Method of manufacturing a sheet that contains a text that is retroreflecting in all its surface area. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES424808A1 (en) |
-
1974
- 1974-03-30 ES ES424808A patent/ES424808A1/en not_active Expired
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