File:MeasuringNegativeLensFocalLenght.png
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MeasuringNegativeLensFocalLenght.png (718 × 313 pixels, file size: 32 KB, MIME type: image/png)
Summary
| Description |
English: Measuring focal length of a negative lens. D - Circular diaphragm (± 0.1 mm) = Entrance pupil d - Virtual exit pupil diameter R - Micrometer reticle Link ->File:MicrometerReticle.png f1 - Lens with known focal length fx - Negative lens with unknown focal length f2 - f3 - f4 - measuring microscope lenses Example: f1 = 150 mm ; D = 20 mm (± 0.1 mm) ; d = 6.666 mm ; fx = ?  |
| Date | |
| Source | Own work |
| Author | Tamasflex |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:11, 10 September 2011 | No thumbnail | 718 × 313 (32 KB) | Tamasflex | {{Information |Description ={{en|1=Measuring focal length of a negative lens.}} |Source ={{own}} |Author =Tamasflex |Date =2011 |Permission = |other_versions = }} [[Category:Ray diagrams for negative le |
