File:BelOMO 10× achromatic triplet loupe 1.jpg
Size of this preview: 800 × 600 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 1,024 × 768 pixels | 1,280 × 960 pixels | 2,560 × 1,920 pixels.
Original file (2,560 × 1,920 pixels, file size: 1.99 MB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: BelOMO LP-3-10× achromatic triplet (jewellers') loupe. This loupe is made in Belarus and finished with black non reflecting surfaces and the lenses are fully multi-coated. A true triplet loupe has an optical system consisting of three compounded optical elements or lenses of different refractive indexes designed for optimal image quality. The Triplet lens-system is made up of two identical concave high index (flint glass) meniscus elements cemented to a double convex low index (crown glass) element and combines the aplanatic features of a distortion free sharp image with the color correction of an achromatic lens. A magnification of 10× is required and hence used by professionals for the examination and grading of precious gems and minerals. Magnification ratio: 10 times |
| Date | |
| Source | Own work |
| Author | Francis Flinch |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:37, 5 October 2016 | | 2,560 × 1,920 (1.99 MB) | Francis Flinch | User created page with UploadWizard |
File usage
The following 3 pages use this file:
Global file usage
The following other wikis use this file:
- Usage on ca.wikipedia.org
- Usage on es.wikipedia.org
- Usage on ig.wikipedia.org
- Usage on ko.wikipedia.org
- Usage on my.wikipedia.org
- Usage on ru.wikipedia.org
- Usage on ta.wikipedia.org
- Usage on uk.wikipedia.org
- Usage on www.wikidata.org
