JPS55140736A - Light screening glass board and its manufacture - Google Patents
Light screening glass board and its manufactureInfo
- Publication number
- JPS55140736A JPS55140736A JP4206280A JP4206280A JPS55140736A JP S55140736 A JPS55140736 A JP S55140736A JP 4206280 A JP4206280 A JP 4206280A JP 4206280 A JP4206280 A JP 4206280A JP S55140736 A JPS55140736 A JP S55140736A
- Authority
- JP
- Japan
- Prior art keywords
- manufacture
- glass board
- screening glass
- light screening
- light
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Joining Of Glass To Other Materials (AREA)
- Glass Compositions (AREA)
- Surface Treatment Of Glass (AREA)
- Overhead Projectors And Projection Screens (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792914682 DE2914682C3 (en) | 1979-04-11 | 1979-04-11 | Process for the production of a glass plate acting as a light screen and a glass plate produced according to this process |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55140736A true JPS55140736A (en) | 1980-11-04 |
Family
ID=6068076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4206280A Pending JPS55140736A (en) | 1979-04-11 | 1980-04-02 | Light screening glass board and its manufacture |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS55140736A (en) |
DE (1) | DE2914682C3 (en) |
FR (1) | FR2454114A1 (en) |
GB (1) | GB2047912A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3127247A1 (en) * | 1981-07-10 | 1983-01-20 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Process for producing a louvre filter and device for carrying out the process |
CH690657A5 (en) * | 1993-12-01 | 2000-11-30 | Olga Raimondi Staeuble | A directional filter for the light fittings. |
DE102013217709A1 (en) * | 2013-09-05 | 2015-03-05 | Carl Zeiss Microscopy Gmbh | Lighting device and digital profile projector |
DE102020205437B3 (en) | 2020-04-29 | 2021-07-01 | Continental Automotive Gmbh | Head-up display with lamellar element and a method for producing a corresponding lamellar element |
GB2622102A (en) * | 2022-09-05 | 2024-03-06 | Envisics Ltd | Light control film |
GB2622103A (en) * | 2022-09-05 | 2024-03-06 | Envisics Ltd | Light control film |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL164396B (en) * | 1967-11-14 | 1980-07-15 | Minnesota Mining & Mfg | OVERHEAD PROJECTOR WITH ANTI-BLINDING SCREEN. |
FR2133914B1 (en) * | 1971-04-20 | 1975-08-29 | Matsushita Electric Ind Co Ltd |
-
1979
- 1979-04-11 DE DE19792914682 patent/DE2914682C3/en not_active Expired
-
1980
- 1980-03-26 GB GB8010084A patent/GB2047912A/en not_active Withdrawn
- 1980-04-02 JP JP4206280A patent/JPS55140736A/en active Pending
- 1980-04-10 FR FR8008056A patent/FR2454114A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2454114A1 (en) | 1980-11-07 |
DE2914682C3 (en) | 1982-05-13 |
DE2914682A1 (en) | 1981-03-26 |
DE2914682B2 (en) | 1981-08-13 |
GB2047912A (en) | 1980-12-03 |
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