FR741979A - - Google Patents
Info
- Publication number
- FR741979A FR741979A FR741979DA FR741979A FR 741979 A FR741979 A FR 741979A FR 741979D A FR741979D A FR 741979DA FR 741979 A FR741979 A FR 741979A
- Authority
- FR
- France
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
- G02B21/08—Condensers
- G02B21/082—Condensers for incident illumination only
- G02B21/084—Condensers for incident illumination only having annular illumination around the objective
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR741979A true FR741979A (en) | 1933-02-23 |
Family
ID=1546440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR741979D Expired FR741979A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR741979A (en) |
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0
- FR FR741979D patent/FR741979A/fr not_active Expired