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Apparatus for the intensity modulation of a light bundle a manufacturing process therefor a process for the intensity modulation of a light bundle and uses for the apparatus
Apparatus for the intensity modulation of a light bundle a manufacturing process therefor a process for the intensity modulation of a light bundle and uses for the apparatus
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机译:用于光束的强度调制的设备,其制造过程,用于光束的强度调制的过程及其用途
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摘要
The invention relates to a device (14) for modulating the intensity of a light bundle (12) which is incident in the entrance of a modulator (50). Said modulator can be regulated between two states by means of a control signal (54). In the first state, a minimum proportion of the light bundle (12) leaves an exit of the modulator and in the second state a maximum proportion of the light bundle leaves said modulator. According to the invention, the device (14) has two or more modulators (50, 50', 50'') arranged in a series, so that each light bundle leaving one of the modulators (50, 50') is guided into the entrance of one of the next modulators arranged in the direction of light propagation. After the intensity of the light bundle (16) has been modulated by the device, said light bundle can be removed from the last of the series of modulators (50) arranged in this way in such a manner that the extinction of the device (14) in relation to each of the individual modulators (50) is improved.
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