GB1590679A - Compact optical viewer for microfiche and cassette - Google Patents
Compact optical viewer for microfiche and cassette Download PDFInfo
- Publication number
- GB1590679A GB1590679A GB35562/77A GB3556277A GB1590679A GB 1590679 A GB1590679 A GB 1590679A GB 35562/77 A GB35562/77 A GB 35562/77A GB 3556277 A GB3556277 A GB 3556277A GB 1590679 A GB1590679 A GB 1590679A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mirror
- prism
- prism sheet
- optical projector
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 title claims description 53
- 230000009977 dual effect Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000005465 channeling Effects 0.000 claims description 2
- 238000005323 electroforming Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- SGPGESCZOCHFCL-UHFFFAOYSA-N Tilisolol hydrochloride Chemical compound [Cl-].C1=CC=C2C(=O)N(C)C=C(OCC(O)C[NH2+]C(C)(C)C)C2=C1 SGPGESCZOCHFCL-UHFFFAOYSA-N 0.000 claims 2
- 239000007787 solid Substances 0.000 description 7
- 241000826860 Trapezium Species 0.000 description 6
- 239000012780 transparent material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012788 optical film 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
- G03B21/10—Projectors with built-in or built-on screen
- G03B21/11—Projectors with built-in or built-on screen for microfilm reading
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Optical Elements Other Than Lenses (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Facsimile Scanning Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71785876A | 1976-09-13 | 1976-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1590679A true GB1590679A (en) | 1981-06-03 |
Family
ID=24883776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35562/77A Expired GB1590679A (en) | 1976-09-13 | 1977-08-24 | Compact optical viewer for microfiche and cassette |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5341227A (de) |
| AT (1) | AT368640B (de) |
| BE (1) | BE858178A (de) |
| BR (1) | BR7705679A (de) |
| CA (1) | CA1103492A (de) |
| DE (1) | DE2738658C3 (de) |
| ES (1) | ES461877A1 (de) |
| FR (1) | FR2413686A1 (de) |
| GB (1) | GB1590679A (de) |
| HK (1) | HK41884A (de) |
| IN (1) | IN149132B (de) |
| MX (1) | MX148985A (de) |
| NL (1) | NL7709456A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4969732A (en) * | 1988-02-25 | 1990-11-13 | Thorn Emi Plc | Display device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54163927U (de) * | 1978-05-10 | 1979-11-16 | ||
| DE2906477C3 (de) | 1979-02-20 | 1995-02-09 | Rohrmoser Alois Skifabrik | Skibremse |
| US8562145B2 (en) | 2011-06-22 | 2013-10-22 | 3M Innovative Properties Company | Display system and method for projection onto non-planar surfaces |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3711188A (en) * | 1970-06-10 | 1973-01-16 | Visidyne Inc | Compact optical display system |
| US3692399A (en) * | 1970-06-23 | 1972-09-19 | Stewart Filmscreen Corp | Microfilm viewer |
| US3782805A (en) * | 1972-11-30 | 1974-01-01 | Qantix Corp | Front projection screen made from a transparent material |
| US3846012A (en) * | 1973-11-14 | 1974-11-05 | Qantix Corp | Transparent front projection screen having concave ridges thereon |
| JPS5345141B2 (de) * | 1973-12-18 | 1978-12-04 | ||
| US3941467A (en) * | 1974-10-29 | 1976-03-02 | Kaptron, Inc. | Optical projector/reader |
-
1977
- 1977-08-24 GB GB35562/77A patent/GB1590679A/en not_active Expired
- 1977-08-24 IN IN1321/CAL/77A patent/IN149132B/en unknown
- 1977-08-24 AT AT0614277A patent/AT368640B/de not_active IP Right Cessation
- 1977-08-25 BR BR7705679A patent/BR7705679A/pt unknown
- 1977-08-25 CA CA285,443A patent/CA1103492A/en not_active Expired
- 1977-08-25 JP JP10218277A patent/JPS5341227A/ja active Granted
- 1977-08-25 ES ES461877A patent/ES461877A1/es not_active Expired
- 1977-08-25 MX MX170358A patent/MX148985A/es unknown
- 1977-08-26 DE DE2738658A patent/DE2738658C3/de not_active Expired
- 1977-08-26 FR FR7726064A patent/FR2413686A1/fr active Granted
- 1977-08-26 NL NL7709456A patent/NL7709456A/xx not_active Application Discontinuation
- 1977-08-26 BE BE6046124A patent/BE858178A/xx not_active IP Right Cessation
-
1984
- 1984-05-10 HK HK418/84A patent/HK41884A/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4969732A (en) * | 1988-02-25 | 1990-11-13 | Thorn Emi Plc | Display device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2738658B2 (de) | 1979-10-11 |
| IN149132B (de) | 1981-09-19 |
| BE858178A (fr) | 1977-12-16 |
| ATA614277A (de) | 1982-02-15 |
| AT368640B (de) | 1982-10-25 |
| FR2413686B1 (de) | 1984-05-18 |
| ES461877A1 (es) | 1978-12-01 |
| JPS5341227A (en) | 1978-04-14 |
| NL7709456A (nl) | 1978-03-15 |
| MX148985A (es) | 1983-08-05 |
| CA1103492A (en) | 1981-06-23 |
| HK41884A (en) | 1984-05-18 |
| JPS6210418B2 (de) | 1987-03-06 |
| DE2738658C3 (de) | 1980-08-07 |
| FR2413686A1 (fr) | 1979-07-27 |
| BR7705679A (pt) | 1978-06-27 |
| DE2738658A1 (de) | 1978-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee | ||
| PCPE | Delete 'patent ceased' from journal |
Free format text: 4910,PAGE 1150 |
|
| PCNP | Patent ceased through non-payment of renewal fee |