Dichroic filters block certain wavelengths. They can also be used in another way: different wavelengths can be divided but also combined.
High quality dichroic filters with low-loss may need up to 30 hours in the coating process. In order to achieve a high-quality surface, it is recommended to use a thick substrate.
Nevertheless, there has to be a compromise, because a 45° dichroic filter refracts the beam in the substrate which then causes drifts.
Standard dichroic filters are available in the size of 20x10mm. Custom sizes available upon request.
|Dimensions tolerance||+/- 0.1mm|
|Clear apterture||> 95%|
|> lambda/4 (1.1mm)|
> lambda/8 (2 & 3.3mm)
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Optic for combining/splitting beams of different wavelengths.
11,50 €(MwSt. excl.)