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US 2008/0165358 A1Published application
Optical Scanning Device and Method of Deriving Same
AssigneeDeutsches Krebsforschungszentrum Stiftung des Offentlichen Rechts
InventorJohann Engelhardt
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Abstract
The present invention relates to an optical scanning device that comprises a light source to emit a beam of light, and a beam splitter to split that beam into several beamlets, and further a first objective lens to direct said beamlets onto a focal plane wherein each of said beamlets impinges on the focal plane spacially separated from each other, wherein the beam splitter comprises several birefringent elements for splitting said beam, preferably a stack of Wollaston prisms.
Claims19
An optical scanning device, comprising:
- a light source (2) to emit a beam of light (3);
- and
- a beam splitter (5, 15) to split said beam coming from the light source (2) into several beamlets (6, 7, 16);
- a first objective lens (9) to focus said beamlets (6, 7, 16) onto a focal plane (10) wherein at least two of said beamlets (6, 7, 16) impinge on the focal plane (10) spacially separated from each other;
- wherein the beam splitter comprises several birefringent elements (5, 15) for splitting said beam coming from said light source (2) into said several beamlets (6, 7, 16).
2 more elements
Optical scanning method, comprising the steps of:
- (a) activating a light source to emit a beam of light;
- (b) splitting said beam of light into several beamlets by said beam passing through several birefringent elements;
- (c) letting said beamlets pass a first objective lens to direct said beamlets onto a focal plane wherein each of said beamlets impinges on the focal plane spacially separated from each other;
- (d) directing said beamlets to a detection means.
1 more element
Dependencies are inferred from the claim text.