DE346029C - - Google Patents
Info
- Publication number
- DE346029C DE346029C DENDAT346029D DE346029DA DE346029C DE 346029 C DE346029 C DE 346029C DE NDAT346029 D DENDAT346029 D DE NDAT346029D DE 346029D A DE346029D A DE 346029DA DE 346029 C DE346029 C DE 346029C
- Authority
- DE
- Germany
- Prior art keywords
- lens
- halves
- different
- radii
- deviation
- 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
- 239000011521 glass Substances 0.000 claims description 3
- 229910052788 barium Inorganic materials 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000005499 meniscus Effects 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE346029C true DE346029C (cs) |
Family
ID=574037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT346029D Active DE346029C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE346029C (cs) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285579A (en) * | 1978-12-15 | 1981-08-25 | Canon Kabushiki Kaisha | Copying lens system |
| JPS58220116A (ja) * | 1982-06-17 | 1983-12-21 | Asahi Optical Co Ltd | 複写用レンズ系 |
-
0
- DE DENDAT346029D patent/DE346029C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285579A (en) * | 1978-12-15 | 1981-08-25 | Canon Kabushiki Kaisha | Copying lens system |
| JPS58220116A (ja) * | 1982-06-17 | 1983-12-21 | Asahi Optical Co Ltd | 複写用レンズ系 |
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