CA998269A - Discontinuity orientation in a multielement lens - Google Patents
Discontinuity orientation in a multielement lensInfo
- Publication number
- CA998269A CA998269A CA183,368A CA183368A CA998269A CA 998269 A CA998269 A CA 998269A CA 183368 A CA183368 A CA 183368A CA 998269 A CA998269 A CA 998269A
- Authority
- CA
- Canada
- Prior art keywords
- discontinuity
- orientation
- multielement lens
- multielement
- lens
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
- H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
- H01J9/2272—Devices for carrying out the processes, e.g. light houses
- H01J9/2273—Auxiliary lenses and filters
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Overhead Projectors And Projection Screens (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29864372A | 1972-10-18 | 1972-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA998269A true CA998269A (en) | 1976-10-12 |
Family
ID=23151404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA183,368A Expired CA998269A (en) | 1972-10-18 | 1973-10-15 | Discontinuity orientation in a multielement lens |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS4975154A (zh) |
BE (1) | BE806155A (zh) |
CA (1) | CA998269A (zh) |
FR (1) | FR2203982B1 (zh) |
GB (1) | GB1450722A (zh) |
IT (1) | IT993500B (zh) |
NL (1) | NL7314288A (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1115189B (it) * | 1978-05-30 | 1986-02-03 | Rca Corp | Lente fresnel |
TW460900B (en) * | 1999-04-16 | 2001-10-21 | Koninkl Philips Electronics Nv | Method of producing a screen for a display device, screen for a display device produced by means of said method and display device provided with said screen |
GB2420594B (en) | 2003-09-22 | 2008-01-09 | Dana Corp | Pressure vessel assembly for integrated pressurized fluid system |
-
1973
- 1973-09-28 IT IT2954673A patent/IT993500B/it active
- 1973-10-02 GB GB4592273A patent/GB1450722A/en not_active Expired
- 1973-10-15 CA CA183,368A patent/CA998269A/en not_active Expired
- 1973-10-16 BE BE136760A patent/BE806155A/xx unknown
- 1973-10-16 JP JP11626873A patent/JPS4975154A/ja active Pending
- 1973-10-16 FR FR7336865A patent/FR2203982B1/fr not_active Expired
- 1973-10-17 NL NL7314288A patent/NL7314288A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
IT993500B (it) | 1975-09-30 |
JPS4975154A (zh) | 1974-07-19 |
BE806155A (fr) | 1974-02-15 |
DE2352365B2 (de) | 1977-02-03 |
FR2203982B1 (zh) | 1977-05-27 |
NL7314288A (zh) | 1974-04-22 |
DE2352365A1 (de) | 1974-05-09 |
AU6080973A (en) | 1975-03-27 |
FR2203982A1 (zh) | 1974-05-17 |
GB1450722A (en) | 1976-09-29 |
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