EP0182115A1
Expired / Lapsed
EP
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Arrangement for dark field illumination
Assignee: Leica Geosystems AG
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Filing: 1985-10-19
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Granted: —
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Expires: 2005-10-19
Abstract
Abstract The device contains a toroidial mirror (9) in which a light source (1) is arranged. Between this light source (1) and the toroidial mirror (9), a ring (7) of glass is arranged, the outer surface of which is constructed in such a manner that it has cylindrical lenses (8) arranged in the manner of a palisade. Such a device can be used for uniformly illuminating the entire surface of the object field and, at the same time, such a device can be inexpensively manufactured. <IMAGE>
Inventors
- 👤 Rudolf Rottermann
- 👤 Werner Spirig
- 👤 Bernhard Schoenenberger
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 17:17
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/02; G02B5/0205; G02B5/021; G02B5/0221; G02B21/00; G02B21/06; G02B21/08; G02B21/10; G02B5/0273; G02B5/0278; F; F21; F21W; F21W2131/00; F21W2131/40; F21W2131/402
Claims Analysis
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References Cited (Backward Citations)
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