DE2617712A1 - Projektionsschirm sowie verfahren und vorrichtung zu dessen herstellung - Google Patents
Projektionsschirm sowie verfahren und vorrichtung zu dessen herstellungInfo
- Publication number
- DE2617712A1 DE2617712A1 DE19762617712 DE2617712A DE2617712A1 DE 2617712 A1 DE2617712 A1 DE 2617712A1 DE 19762617712 DE19762617712 DE 19762617712 DE 2617712 A DE2617712 A DE 2617712A DE 2617712 A1 DE2617712 A1 DE 2617712A1
- Authority
- DE
- Germany
- Prior art keywords
- micro
- elements
- waveform
- frequency
- generator
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000005520 cutting process Methods 0.000 claims description 31
- 230000003287 optical effect Effects 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 description 9
- 238000003860 storage Methods 0.000 description 6
- 238000003801 milling Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/602—Lenticular screens
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/02—Other than completely through work thickness
- Y10T83/0304—Grooving
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/162—With control means responsive to replaceable or selectable information program
- Y10T83/173—Arithmetically determined program
- Y10T83/175—With condition sensor
- Y10T83/178—Responsive to work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/707—By endless band or chain knife
- Y10T83/7101—With tool in-feed
- Y10T83/7145—By motor-driven mechanism
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Turning (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/571,124 US3977766A (en) | 1975-04-24 | 1975-04-24 | Projection screen and apparatus for the fabrication thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2617712A1 true DE2617712A1 (de) | 1976-11-04 |
Family
ID=24282413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762617712 Withdrawn DE2617712A1 (de) | 1975-04-24 | 1976-04-23 | Projektionsschirm sowie verfahren und vorrichtung zu dessen herstellung |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3977766A (cg-RX-API-DMAC7.html) |
| JP (1) | JPS51131324A (cg-RX-API-DMAC7.html) |
| CA (1) | CA1048316A (cg-RX-API-DMAC7.html) |
| DE (1) | DE2617712A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2308945A1 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1538600A (cg-RX-API-DMAC7.html) |
| HK (1) | HK41780A (cg-RX-API-DMAC7.html) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590931A (en) * | 1978-12-29 | 1980-07-10 | Canon Inc | Production of micro structure element array |
| US6322236B1 (en) | 1999-02-09 | 2001-11-27 | 3M Innovative Properties Company | Optical film with defect-reducing surface and method for making same |
| CN110119060B (zh) * | 2018-02-05 | 2021-08-17 | 深圳光峰科技股份有限公司 | 透声幕及其制造方法 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1970358A (en) * | 1931-01-29 | 1934-08-14 | Electrical Res Prod Inc | Translucent optical projection screen |
| US2279555A (en) * | 1937-07-31 | 1942-04-14 | Emi Ltd | Optical image producing and viewing arrangement |
| US2348818A (en) * | 1940-02-07 | 1944-05-16 | Jacobson Johan Sam | Projection of images |
| US2706930A (en) * | 1947-08-21 | 1955-04-26 | Hartford Nat Bank & Trust Co | Projection screen |
| US2875087A (en) * | 1954-02-23 | 1959-02-24 | American Optical Corp | Method of forming reflective surfaces |
| FR1520023A (fr) * | 1966-10-03 | 1968-04-05 | Intercontinental Machinery Cor | Machine automatique à découper |
| US3754811A (en) * | 1971-12-13 | 1973-08-28 | Eastman Kodak Co | Projection screen |
| US3765281A (en) * | 1971-12-13 | 1973-10-16 | Eastman Kodak Co | Method and apparatus for fabricating radiation-redistributive devices |
| US3788171A (en) * | 1971-12-13 | 1974-01-29 | Eastman Kodak Co | Projection screen fabrication apparatus and method |
| US3754813A (en) * | 1971-12-13 | 1973-08-28 | Eastman Kodak Co | Radiation-redistributive devices |
| FR2163511B1 (cg-RX-API-DMAC7.html) * | 1971-12-13 | 1975-06-20 | Eastman Kodak Co | |
| US3809457A (en) * | 1972-10-13 | 1974-05-07 | Eastman Kodak Co | Radiation-redistributive devices |
| JPS49114434A (cg-RX-API-DMAC7.html) * | 1973-02-12 | 1974-10-31 |
-
1975
- 1975-04-24 US US05/571,124 patent/US3977766A/en not_active Expired - Lifetime
-
1976
- 1976-03-23 CA CA76248575A patent/CA1048316A/en not_active Expired
- 1976-04-15 GB GB15628/76A patent/GB1538600A/en not_active Expired
- 1976-04-23 DE DE19762617712 patent/DE2617712A1/de not_active Withdrawn
- 1976-04-23 FR FR7612042A patent/FR2308945A1/fr active Granted
- 1976-04-24 JP JP51047143A patent/JPS51131324A/ja active Pending
-
1980
- 1980-08-07 HK HK417/80A patent/HK41780A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3977766A (en) | 1976-08-31 |
| FR2308945B1 (cg-RX-API-DMAC7.html) | 1980-06-13 |
| HK41780A (en) | 1980-08-15 |
| CA1048316A (en) | 1979-02-13 |
| GB1538600A (en) | 1979-01-24 |
| JPS51131324A (en) | 1976-11-15 |
| FR2308945A1 (fr) | 1976-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |