| 摘要 |
In order to improve target illumination a light emitter comprises several partial light sources (3a, 3b, 3c, 3d), the partial beams (5a, 5b, 5c, 5d) o f which are collected by means of a beam collector optic (2) and directed to t he aperture of a collimator (1). The beam collector optic (2) comprises two hal f- mirrored sheets (12a, 12b), which each direct two similarly polarised partia l beams (5a, b; 5c, d) side by side onto a polarisation cube (13), where the pairs of partial beams which are polarised perpendicular and orthogonal to each other are overlaid.
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