fourth order Fresnel lens (Q24629281)
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- 4th order Fresnel lens
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | fourth order Fresnel lens |
No description defined |
|
Statements
250 millimetre
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.jpg)
4th Order fixed Fresnel Lens, crica Late 1800's (41645846745).jpg
1,832 × 2,760; 2.85 MB
1,832 × 2,760; 2.85 MB
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4
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Fourth order fresnel lenses
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Multilingual sites(1 entry)
- commonswiki Category:Fourth order fresnel lenses