ES409223A1 - Redundancy means for redundant hologrm recording system - Google Patents
Redundancy means for redundant hologrm recording systemInfo
- Publication number
- ES409223A1 ES409223A1 ES409223A ES409223A ES409223A1 ES 409223 A1 ES409223 A1 ES 409223A1 ES 409223 A ES409223 A ES 409223A ES 409223 A ES409223 A ES 409223A ES 409223 A1 ES409223 A1 ES 409223A1
- Authority
- ES
- Spain
- Prior art keywords
- wave energy
- tiny holes
- redundant
- coherent
- practically
- 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
- 230000001427 coherent effect Effects 0.000 abstract 5
- 230000015572 biosynthetic process Effects 0.000 abstract 3
- 230000000737 periodic effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/32—Systems for obtaining speckle elimination
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
Abstract
A redundant hologram recording system of the type where an object that is not scattered is illuminated with a first component of coherent wave energy of a given wavelength that has been operated by a redundancy element that produces a beam of redundant objective information of coherent wave energy exposing a certain area of a hologram recording medium, the determined area being simultaneously exposed by a reference beam comprising a second coherent wave energy component that is mutually coherent with the beam of objective information, characterized in that the redundancy element comprises, a Fresnel lens formation consisting of a predetermined periodic design of practically identical separate zone plates oriented in a certain foreground located in the path of an incident beam of the coherent wave energy having a single wavefront determines uniform, and a formation of tiny holes located in the determined second plane, consisting of the formation of tiny holes of practically identical individual tiny holes corresponding respectively to each of the zone squares that are placed practically exactly in the same design default to the zone plates, with the spacing between the centers of any pair of adjacent tiny holes being almost exactly the same as the spacing between the centers of the corresponding pair of zone plates, the size of each of the tiny holes practically allows only the portion of the image of the wave energy passes through them. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20643571A | 1971-12-09 | 1971-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES409223A1 true ES409223A1 (en) | 1975-12-16 |
Family
ID=22766370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES409223A Expired ES409223A1 (en) | 1971-12-09 | 1972-12-02 | Redundancy means for redundant hologrm recording system |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5117916B2 (en) |
| AT (1) | ATA1047272A (en) |
| AU (1) | AU469980B2 (en) |
| BE (1) | BE792524A (en) |
| BR (1) | BR7208531D0 (en) |
| CA (1) | CA979260A (en) |
| DE (1) | DE2259728A1 (en) |
| ES (1) | ES409223A1 (en) |
| FR (1) | FR2165924B1 (en) |
| GB (1) | GB1399290A (en) |
| IT (1) | IT970903B (en) |
| NL (1) | NL7216412A (en) |
| SE (1) | SE376667B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843084A (en) * | 1981-09-07 | 1983-03-12 | オムロン株式会社 | Coin processor |
| JPS5843085A (en) * | 1981-09-07 | 1983-03-12 | オムロン株式会社 | Coin processor |
| JPS58167257U (en) * | 1982-05-04 | 1983-11-08 | 日産自動車株式会社 | Vehicle loading device |
| JPS59104850U (en) * | 1982-12-30 | 1984-07-14 | 日本発条株式会社 | Car luggage compartment cover device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3545854A (en) * | 1966-06-17 | 1970-12-08 | Gen Electric | Semiconductor mask making |
-
0
- BE BE792524D patent/BE792524A/en unknown
-
1972
- 1972-11-15 IT IT3169472A patent/IT970903B/en active
- 1972-11-16 CA CA156,697A patent/CA979260A/en not_active Expired
- 1972-12-02 ES ES409223A patent/ES409223A1/en not_active Expired
- 1972-12-04 AU AU49607/72A patent/AU469980B2/en not_active Expired
- 1972-12-04 BR BR853172A patent/BR7208531D0/en unknown
- 1972-12-04 NL NL7216412A patent/NL7216412A/xx unknown
- 1972-12-06 JP JP12233672A patent/JPS5117916B2/ja not_active Expired
- 1972-12-06 FR FR7243416A patent/FR2165924B1/fr not_active Expired
- 1972-12-06 DE DE19722259728 patent/DE2259728A1/en active Pending
- 1972-12-07 AT AT1047272A patent/ATA1047272A/en not_active Application Discontinuation
- 1972-12-07 SE SE1596372A patent/SE376667B/xx unknown
- 1972-12-08 GB GB5665472A patent/GB1399290A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2165924B1 (en) | 1976-06-04 |
| DE2259728A1 (en) | 1973-06-14 |
| JPS5117916B2 (en) | 1976-06-05 |
| CA979260A (en) | 1975-12-09 |
| JPS4866450A (en) | 1973-09-12 |
| ATA1047272A (en) | 1977-03-15 |
| AU4960772A (en) | 1974-06-06 |
| FR2165924A1 (en) | 1973-08-10 |
| AU469980B2 (en) | 1976-02-26 |
| BE792524A (en) | 1973-03-30 |
| NL7216412A (en) | 1973-06-13 |
| SE376667B (en) | 1975-06-02 |
| IT970903B (en) | 1974-04-20 |
| GB1399290A (en) | 1975-07-02 |
| BR7208531D0 (en) | 1973-09-25 |
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