CA1090178A - Optical image viewing apparatus with rotating viewing screen - Google Patents
Optical image viewing apparatus with rotating viewing screenInfo
- Publication number
- CA1090178A CA1090178A CA282,393A CA282393A CA1090178A CA 1090178 A CA1090178 A CA 1090178A CA 282393 A CA282393 A CA 282393A CA 1090178 A CA1090178 A CA 1090178A
- Authority
- CA
- Canada
- Prior art keywords
- set forth
- reflective
- moving screen
- housing
- screen
- 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 abstract description 37
- 229920002457 flexible plastic Polymers 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 239000000945 filler Substances 0.000 claims 1
- 239000002985 plastic film Substances 0.000 claims 1
- 238000002310 reflectometry Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 26
- 239000012790 adhesive layer Substances 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 210000001747 pupil Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920006352 transparent thermoplastic Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
- G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
- G02B27/025—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies and magnifying means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
- G02B30/35—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using reflective optical elements in the optical path between the images and the observer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Microscoopes, Condenser (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US705,069 | 1976-07-14 | ||
| US05/705,069 US4033683A (en) | 1976-07-14 | 1976-07-14 | Image viewing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1090178A true CA1090178A (en) | 1980-11-25 |
Family
ID=24831909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA282,393A Expired CA1090178A (en) | 1976-07-14 | 1977-07-11 | Optical image viewing apparatus with rotating viewing screen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4033683A (enExample) |
| JP (1) | JPS5346130U (enExample) |
| CA (1) | CA1090178A (enExample) |
| GB (1) | GB1582345A (enExample) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4168106A (en) * | 1977-12-05 | 1979-09-18 | Vision Engineering Limited | Pupil enlargement component for an optical device |
| DE3224227C1 (de) * | 1982-06-29 | 1983-12-15 | C. Reichert Optische Werke AG, 1170 Wien | Projektionseinrichtung fuer Mikroskope |
| GB2123972B (en) * | 1982-07-08 | 1985-10-09 | Purdy Machinery Company Limite | Can seam projector |
| US5966673A (en) | 1997-01-10 | 1999-10-12 | Diamond Technologies, Inc. | System and method for computerized evaluation of gemstones |
| US6473164B1 (en) | 2000-02-16 | 2002-10-29 | Gemological Institute Of America, Inc. | Systems, apparatuses and methods for diamond color measurement and analysis |
| JP2001281588A (ja) * | 2000-03-31 | 2001-10-10 | Fuji Photo Optical Co Ltd | 平行平面板の出射位置調整構造 |
| US7260544B1 (en) * | 2000-10-12 | 2007-08-21 | Gemological Institute Of America, Inc. | System and methods for evaluating the appearance of a gemstone |
| US6791739B2 (en) | 2001-08-08 | 2004-09-14 | Eastman Kodak Company | Electro-optic despeckling modulator and method of use |
| US6769773B1 (en) * | 2003-05-20 | 2004-08-03 | Jiahn-Chang Wu | Projector with UV light source |
| US7660037B2 (en) * | 2006-06-06 | 2010-02-09 | Seiko Epson Corporation | Screen, projector, and image display device |
| US9262284B2 (en) * | 2006-12-07 | 2016-02-16 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Single channel memory mirror |
| JP4953910B2 (ja) * | 2007-05-08 | 2012-06-13 | 富士フイルム株式会社 | レンズ位置決め治具、及びレンズ鏡筒取付方法 |
| CN107438787B (zh) * | 2016-03-31 | 2020-04-14 | 深圳市柔宇科技有限公司 | 头戴式显示设备 |
| CN110658622A (zh) * | 2019-08-19 | 2020-01-07 | 深圳市矽赫科技有限公司 | 一种自动调节的微显示器光学目镜及其调整方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1864946A (en) * | 1928-04-18 | 1932-06-28 | Schrago Samuel | Movable projection screen |
| US2525596A (en) * | 1949-01-21 | 1950-10-10 | Jones & Lamson Mach Co | Optical projection screen |
| US2780136A (en) * | 1952-03-10 | 1957-02-05 | Richard T Erban | Kinoptic devices |
| US2974564A (en) * | 1956-07-23 | 1961-03-14 | Wendell S Miller | Projection systems |
| US3365524A (en) * | 1966-04-14 | 1968-01-23 | Fma Inc | Method for making and testing a mold for a backlit projection screen |
| US3781102A (en) * | 1971-03-19 | 1973-12-25 | Eastman Kodak Co | Modular structure for viewing apparatus |
| ZA725372B (en) * | 1971-08-19 | 1973-05-30 | Vision Eng Ltd | Improvements in high magnification optical apparatus |
| US3796484A (en) * | 1971-08-20 | 1974-03-12 | Holograph Corp | Optical communication system providing selective image presentations |
| DE2315658C3 (de) * | 1973-03-29 | 1980-11-20 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren und Vorrichtung zur Verminderung oder Beseitigung der bei Laserstrahlprojektionen auftretenden Granulation |
-
1976
- 1976-07-14 US US05/705,069 patent/US4033683A/en not_active Expired - Lifetime
-
1977
- 1977-06-29 GB GB27244/77A patent/GB1582345A/en not_active Expired
- 1977-07-11 CA CA282,393A patent/CA1090178A/en not_active Expired
- 1977-07-13 JP JP1977093267U patent/JPS5346130U/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5346130U (enExample) | 1978-04-19 |
| GB1582345A (en) | 1981-01-07 |
| US4033683A (en) | 1977-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |