Ultra-flat Dichroic Mirror, Single Band 400nm-494nm

Chroma Technology Ultra-flat Dichroic Mirror

Manufacturer's part number :


Manufacturer CHROMA TECHNOLOGY Fluorescence Filters

Chroma Technology

Description :

ZT491rdc is ultra-flat laser dichroic mirror with single band wavelength range from 400nm-494nm.

Sputtered thin-films exert stress on glass and fused silica substrates and warp them into varying degrees of curvature. Chroma has learned how to control this to a large extent by developing a proprietary manufacturing method which minimizes surface curvature. Another factor which reduces surface curvature is the use of thicker substrates which provide greater stiffness and therefore more resistance to the stress exerted by these coatings. Combining these two elements allows Chroma to specify levels of dichroic surface flatness according to thickness.

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  • Angle of incidence: 45°
  • Benefits

    Chroma's ultra-flat dichroics with the following specifications for final, post-coating surface flatness:
  • Thickness: 1mm thick / Surface Flatness: =/< 2 waves/inch Peak-Valley (P-V) / Application: Standard Laser Filter Sets
  • Thickness: 2mm thick / Surface Flatness: =/< 0.5 waves/inch P-V / Application: TIRF Filter Sets, PALM and STORM
  • Thickness: 3mm thick / Surface Flatness: =/< 0.25 waves/inch P-V / Application: STED and Structured Illumination
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Set Type Laser / Sputter Coated  

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Filter Cube Optional / specify microscope  
Filters Type Ultra-flat Dichroic Mirror  
Ultra-flat Dichroic Mirror, ZT491rdc
Ultra-flat Dichroic Mirror