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Within a height of less than 1mm, electroactive polymers are used to bring a polymer diffuser into resonant oscillation with e.g. 400µm travel at several 100 Hz. This electrostatic principle is very power-efficient, completely silent and free of vibrations, an ideal choice for hand-held devices. |
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The following table summarizes the main specifications of currently available laser speckle reducers:
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| Specifications |  |
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Product description |
Scientific standard | Scientific standard | OEM standard | OEM standard | ||||
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Size (Ø or L x H) |
41mm x 8.8mm |
48mm x 8.8mm |
17mm x 3.8mm |
22mm x 3.8mm | ||||
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Clear aperture |
5mm |
10mm |
5mm |
10mm | ||||
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Oscillation frequency |
300Hz |
180Hz |
300Hz |
180Hz | ||||
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Oscillation amplitude |
300um |
400um |
300um |
400um | ||||
| Electronics | Integrated, CE certified | Integrated, CE certified | Optional, not certified | Optional, not certified | ||||
| Recommended documentation |
 Datasheet |
Datasheet |
Datasheet |
Datasheet |
Applications
Optotune's laser speckle reducer is the ideal choice for application in:
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Results
| The following figure shows typical images of the speckle contrast measured on a reference setup with and without LSR. The colored lines show the cut planes that correspond to the intensity plot. |
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Videos
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The benefits of the Laser Speckle Reducer explained at Photonics West 2012 |
Speckle reduction effect demonstrated with a red laser (650nm, 5mm beam diameter) |
