DE143889C - - Google Patents
Info
- Publication number
- DE143889C DE143889C DENDAT143889D DE143889DA DE143889C DE 143889 C DE143889 C DE 143889C DE NDAT143889 D DENDAT143889 D DE NDAT143889D DE 143889D A DE143889D A DE 143889DA DE 143889 C DE143889 C DE 143889C
- Authority
- DE
- Germany
- Prior art keywords
- refraction
- lens
- lenses
- quotients
- dispersions
- 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.)
- Active
Links
- 239000006185 dispersion Substances 0.000 claims description 5
- 239000005331 crown glasses (windows) Substances 0.000 description 2
- 239000005308 flint glass Substances 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001771 impaired Effects 0.000 description 1
- 230000003287 optical Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE143889C true DE143889C (ko) |
Family
ID=411360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT143889D Active DE143889C (ko) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE143889C (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296016A (en) * | 1990-12-25 | 1994-03-22 | Mitsubishi Materials Corporation | Surface coated cermet blade member |
-
0
- DE DENDAT143889D patent/DE143889C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296016A (en) * | 1990-12-25 | 1994-03-22 | Mitsubishi Materials Corporation | Surface coated cermet blade member |
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