UA29981A - Perforation spectacles - Google Patents
Perforation spectaclesInfo
- Publication number
- UA29981A UA29981A UA97115668A UA97115668A UA29981A UA 29981 A UA29981 A UA 29981A UA 97115668 A UA97115668 A UA 97115668A UA 97115668 A UA97115668 A UA 97115668A UA 29981 A UA29981 A UA 29981A
- Authority
- UA
- Ukraine
- Prior art keywords
- raster
- openings
- spectacles
- perforation
- discs
- Prior art date
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
Perforation spectacles have ocular frame with non-transparent discs, in the centers of those there are rasters with apertures. The discs are made of material blocking electromagnetic radiation, and are spherical in shape. Openings in the raster are made in exact conical form and have different diameter in vertical rows from 0.9 to 1.4 mm with pitch 0.1 mm. Openings with maximal diameter and placed in the upper or in the lower part of the raster, and the openings in raster are placed in hexagonal positions with distances between centers of those from 3.0 to 4.0 mm with pitch 0.5 mm. The upper or the lower segments of non-transparent discs are removed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
UA97115668A UA29981A (en) | 1997-11-26 | 1997-11-26 | Perforation spectacles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
UA97115668A UA29981A (en) | 1997-11-26 | 1997-11-26 | Perforation spectacles |
Publications (1)
Publication Number | Publication Date |
---|---|
UA29981A true UA29981A (en) | 2000-11-15 |
Family
ID=74196167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
UA97115668A UA29981A (en) | 1997-11-26 | 1997-11-26 | Perforation spectacles |
Country Status (1)
Country | Link |
---|---|
UA (1) | UA29981A (en) |
-
1997
- 1997-11-26 UA UA97115668A patent/UA29981A/en unknown
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