ATA177895A - Optische fresnel-projektionswand - Google Patents
Optische fresnel-projektionswandInfo
- Publication number
- ATA177895A ATA177895A AT177895A AT177895A ATA177895A AT A177895 A ATA177895 A AT A177895A AT 177895 A AT177895 A AT 177895A AT 177895 A AT177895 A AT 177895A AT A177895 A ATA177895 A AT A177895A
- Authority
- AT
- Austria
- Prior art keywords
- projection screen
- fresnel projection
- optical fresnel
- optical
- screen
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT177895A AT407093B (de) | 1995-10-27 | 1995-10-27 | Optische fresnel-projektionswand |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT177895A AT407093B (de) | 1995-10-27 | 1995-10-27 | Optische fresnel-projektionswand |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA177895A true ATA177895A (de) | 2000-04-15 |
AT407093B AT407093B (de) | 2000-12-27 |
Family
ID=3520781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT177895A AT407093B (de) | 1995-10-27 | 1995-10-27 | Optische fresnel-projektionswand |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT407093B (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3868501A (en) * | 1973-05-16 | 1975-02-25 | Cryton Optics Inc | Light boxes with fresnel lenses |
US3861785A (en) * | 1973-11-15 | 1975-01-21 | Cryton Optics Inc | Wide angle mirror assembly |
US4117615A (en) * | 1977-02-10 | 1978-10-03 | Johnstons & Associates, Inc. | Viewing panel for producing multiple images of a design |
US4866530A (en) * | 1988-02-22 | 1989-09-12 | Kalua Kevin A | Multiple screen, modular video display projection system |
JP2959644B2 (ja) * | 1991-03-27 | 1999-10-06 | 株式会社日立製作所 | 大画面投写形ディスプレイ |
-
1995
- 1995-10-27 AT AT177895A patent/AT407093B/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AT407093B (de) | 2000-12-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee | ||
ELJ | Ceased due to non-payment of the annual fee |