DE310615C - - Google Patents
Info
- Publication number
- DE310615C DE310615C DENDAT310615D DE310615DA DE310615C DE 310615 C DE310615 C DE 310615C DE NDAT310615 D DENDAT310615 D DE NDAT310615D DE 310615D A DE310615D A DE 310615DA DE 310615 C DE310615 C DE 310615C
- Authority
- DE
- Germany
- Prior art keywords
- lens
- glass
- lenses
- exponent
- aperture
- 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 4
- 239000005331 crown glasses (windows) Substances 0.000 claims description 2
- 239000005361 soda-lime glass Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 3
- 230000033458 reproduction Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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 -
- G02B9/04—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
DE310615C true DE310615C (enrdf_load_stackoverflow) |
Family
ID=563670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT310615D Active DE310615C (enrdf_load_stackoverflow) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE310615C (enrdf_load_stackoverflow) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1242011B (de) * | 1963-02-25 | 1967-06-08 | Ednalite Corp | Symmetrisches viergliedriges, sechslinsiges Objektiv |
-
0
- DE DENDAT310615D patent/DE310615C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1242011B (de) * | 1963-02-25 | 1967-06-08 | Ednalite Corp | Symmetrisches viergliedriges, sechslinsiges Objektiv |
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