BE371131A - - Google Patents
Info
- Publication number
- BE371131A BE371131A BE371131DA BE371131A BE 371131 A BE371131 A BE 371131A BE 371131D A BE371131D A BE 371131DA BE 371131 A BE371131 A BE 371131A
- Authority
- BE
- Belgium
- Prior art keywords
- lens
- focal length
- meniscus
- diverging
- lenses
- Prior art date
Links
- 230000005499 meniscus Effects 0.000 claims description 9
- 230000007423 decrease Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect 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 |
|---|---|
| BE371131A true BE371131A (enrdf_load_stackoverflow) |
Family
ID=42472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE371131D BE371131A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE371131A (enrdf_load_stackoverflow) |
-
0
- BE BE371131D patent/BE371131A/fr unknown
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