JPH0421843B2 - - Google Patents
Info
- Publication number
- JPH0421843B2 JPH0421843B2 JP8010982A JP8010982A JPH0421843B2 JP H0421843 B2 JPH0421843 B2 JP H0421843B2 JP 8010982 A JP8010982 A JP 8010982A JP 8010982 A JP8010982 A JP 8010982A JP H0421843 B2 JPH0421843 B2 JP H0421843B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- convex
- concave
- cathode ray
- ray tube
- 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
- 230000004075 alteration Effects 0.000 claims description 27
- 230000005499 meniscus Effects 0.000 claims description 13
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims 1
- 239000004926 polymethyl methacrylate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000295 emission spectrum Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 206010010071 Coma Diseases 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/16—Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers, or for use with projectors, e.g. objectives for projection TV
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8010982A JPS58198016A (ja) | 1982-05-14 | 1982-05-14 | 投影レンズ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8010982A JPS58198016A (ja) | 1982-05-14 | 1982-05-14 | 投影レンズ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58198016A JPS58198016A (ja) | 1983-11-17 |
| JPH0421843B2 true JPH0421843B2 (en]) | 1992-04-14 |
Family
ID=13709012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8010982A Granted JPS58198016A (ja) | 1982-05-14 | 1982-05-14 | 投影レンズ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58198016A (en]) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0812328B2 (ja) * | 1985-10-21 | 1996-02-07 | キヤノン株式会社 | 投影レンズ |
| JPH0774858B2 (ja) * | 1985-11-01 | 1995-08-09 | 株式会社ニコン | 投影レンズ |
| JPS6364015A (ja) * | 1986-09-05 | 1988-03-22 | Konica Corp | プロジエクタ−用投影レンズ |
| JPS63148220A (ja) * | 1986-12-12 | 1988-06-21 | Konica Corp | プロジエクタ−用投影レンズ |
| JPH0750245B2 (ja) * | 1987-03-31 | 1995-05-31 | 松下電器産業株式会社 | 投影レンズ |
| US4900139A (en) * | 1987-05-11 | 1990-02-13 | U. S. Precision Lens, Inc. | Color corrected projection lens |
-
1982
- 1982-05-14 JP JP8010982A patent/JPS58198016A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58198016A (ja) | 1983-11-17 |
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