GB348411A - Improvements in and relating to microscope condensers - Google Patents
Improvements in and relating to microscope condensersInfo
- Publication number
- GB348411A GB348411A GB1658630A GB1658630A GB348411A GB 348411 A GB348411 A GB 348411A GB 1658630 A GB1658630 A GB 1658630A GB 1658630 A GB1658630 A GB 1658630A GB 348411 A GB348411 A GB 348411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- objective
- condenser
- object plane
- image
- segment
- 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.)
- 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
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
348,411. Microscope condensers. POLLARD, A. F. C., Imperial College of Science & Technology, South Kensington, London. May 29, 1930, No. 16586. Drawings to Specification. [Class 97 (i).] A catoptric microscope condenser consists of a polished concave spherical reflecting surface placed below the object plane in such a position that the centre of curvature of the surface, or its optical equivalent having regard to the thickness of the glass slide, coincides with the object plane. For dry objective systems the condenser is preferably a hollow segment of a sphere of speculum metal &c. For use with homogeneous immersion systems the condenser takes the form of a solid spherical segment of glass, quartz, &c., silvered on its outer surface, the segment being less than a hemisphere. Illumination is effected by a vertical illuminator, an image of the light source being produced in the object plane by the objective, and the light being then reflected by the spherical condenser to form a second image, also in the object plane. This image illuminates the object by transmitted light which retraces its path through the objective and thus enables the full resolving power of the objective to be utilized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1658630A GB348411A (en) | 1930-05-29 | 1930-05-29 | Improvements in and relating to microscope condensers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1658630A GB348411A (en) | 1930-05-29 | 1930-05-29 | Improvements in and relating to microscope condensers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB348411A true GB348411A (en) | 1931-05-14 |
Family
ID=10079979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1658630A Expired GB348411A (en) | 1930-05-29 | 1930-05-29 | Improvements in and relating to microscope condensers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB348411A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722018A (en) * | 2012-06-24 | 2012-10-10 | 南通江中光电有限公司 | Novel collecting mirror of microscope |
-
1930
- 1930-05-29 GB GB1658630A patent/GB348411A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722018A (en) * | 2012-06-24 | 2012-10-10 | 南通江中光电有限公司 | Novel collecting mirror of microscope |
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