| 摘要 |
The invention relates to an illumination device, in particular in the form of a luminous emitter (14) for TV recordings, stages, etc. The luminous emitter (14) comprises a light source (29) and a plate-type element (25) arranged in the beam path of the light source (29). The plate-type element (25) comprises two transparent plates (26) with a layer of liquid crystals (22) arranged in between. The liquid crystals (22) are disordered in a first state. The liquid crystals (22) are aligned with one another in a second state. An electrical voltage is applied to the liquid crystal layer in order to change between the states. The invention enables a rapid change between direct illumination and diffuse illumination.
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