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Technical environment
Technical environment
Global standard 220V-240V/50Hz-60Hz
Standard for USA/Canada 120V/60Hz, 277V/60Hz
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Our contents are shown to you in English. Product data is displayed for a technical region using 220V-240V/50Hz-60Hz.

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A comparison of optics

Projection and reflection: where is the difference?

A comparison of optics

Projection: light control via lenses

Lens systems feature high precision and efficiency. High uniformity in terms of brightness and colour constancy is generated within the light beam. Imperfections or spill light losses are avoided because all light rays are guided through the lens system. This means that operators benefit from high efficiency (lx/W). Even very narrow light beams for striking accents can be implemented.

A comparison of optics

Reflection: light control via reflectors

With light control via reflectors, only the light rays emitted to the side are controlled. Therefore very narrow light beams are not possible. Furthermore, high spill light losses (red lines) or not clean beams (e.g. halos) occur. Unfocused and sometimes coloured edges to the light beams may also occur as well as a non-uniform distribution of illumination in the centre.

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