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Dichroic Mirrors

Dichroic mirrors are composed of optical mirrors and thin-film dielectric coatings, which can split light of a certain wavelength into two parts, one part passes through, and the other part is reflected or absorbed. Filters that allow longer wavelengths of light to pass are called long-pass filters, and filters that allow shorter wavelengths of light to pass are called short-pass filters. The processing technology of Tianyanggu dichroic mirrors is mature and it is easy to achieve high-precision dimensions. The precision of prisms with a size of less than 3 inches can be controlled within 3 seconds. The dichroic mirror is milled, finely ground, ground, polished, and coated to achieve high-precision mirror flatness and optical properties.

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Specifications of Dichroic Mirrors


Dichroic mirror product parameter table
projectIndicator requirements
1. MaterialUse optical glass, fused quartz and other materials
2. Overall dimensionsMaximum overall size: ≤150×150mm ±0.05mm according to customer requirements
3. ThicknessT≤50mm±0.02 according to customer requirements
4. Working wavelengthaccording to customers needs
5. Coatingaccording to customers needs
6. Angle tolerance3′
7. Effective apertureED>95% area
8. Flatnessλ/10 @632.8 nm
9. Surface quality60-40, 40-20, 20-10


Features of Dichroic Mirrors

Features of Dichroic Mirrors
  • One-stop customized production:Solar Valley processes dichroic mirrors of various shapes and sizes according to customer requirements, such as circles, squares, trapezoids, etc.

  • Material: Use optical glass, fused quartz and other materials.

  • Dichroic mirror properties: Dichroic filters can be used in long pass, short pass, band pass, band stop and color correction types of various wavelengths, with excellent transmission, reflection and absorption characteristics. The desired spectral range is achieved by using different dichroic filters. Sharp transition from reflection to transmission, hard coating and adhesive-free, high transmission in the passband, long filter life. Dichroic mirrors are used in many fields such as machine vision imaging, fluorescence microscopy, PCR fluorescence quantitative analyzers, fluorescein, fluorescent dyes, and fluorescent light group detection.

  • Description of product size indicators: Maximum dimensions of dichroic mirror: ≤150×150mm Thickness T≤50mm

  • Surface defect grade: 60-40, 40-20, 20-10 Produced according to customer requirements.

  • Coating: Coating according to customer requirements.

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