Address: 4, Jiang Wang Miao Street Nanjing,Jiangsu 210042, China
Phone: +86-25-85282507
Ellipsoidal Mirror
Ellipsoidal mirrors have two conjugate foci. Light from one focus passes throughthe other after reflection. Ellipsoids collect a much higher fraction of total emittedlight than a spherical mirror or conventional lens system. Thus, they areefficient over a much broader spectral range and exhibit no chromatic aberrations.Therefore, they are less expensive than many IR lens materials.These products can either be on-axis or off-axis, and can be supplied in a varietyof materials; including BK7 glass, copper, fused silica, UV grade fused silica,nickel, and optical crown glass. Common coatings for ellipsoidal mirrors includenone (uncoated), enhanced aluminum, protected aluminum, dielectric, protectedgold, and silver.We can provide both on-axis and off-axis ellipsoidal mirrors, and specialize in productionof medium to large-size custom ellipsoids with exacting tolerances, highgrade surface finish and difficult coatings. Surface accuracy can be verifiedby the Foucault test or on the Zygo interferometer upon request.Please send us your specification or drawing and we will be happy to return a quotation ASAP. Our average response time is within 24 hours. Our optical designersare always available to assist with your special needs, and our factory in Chinais ready to meet your quantity requirements.Specifications:1) Diameter: Φ25.4 - 1000mm2) Material: BK7 (K9), or as requested3) Surface quality: up to 10-5 S&D, or as requested4) Surface accuracy: up to λ/20, or as requested5) Clear aperture: >90%6) Diameter tolerance: +(0.1 - 2)/-0.0mm (depends on the dimension)7) Focal length tolerance: ±(1 - 1.5%) (depends on the dimension)8) Edge thickness tolerance: +0/-10%, or as requested9) Bevel: (0.1 - 2mm) x 45° (depends on the dimension)10) Coating: as requested
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