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| Fuzhou Lens Optical Technology Co.,Ltd. | |
| Subject: | Achromatic lens |
| Update Date: | 2009-02-16 18:16:59.0 |
| Valid Period: | Never expired |
| Contact Info | |
| Tel: | 86-591-88865450 |
| Fax: | 86-591-83302795 |
| Contact Person: | |
| Job Title: | Sales Manager |
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Description
Achromatic lens is designed to limit the effects of chromatic and spherical abberation. It is corrected to bring two wavelengths(typically red and blue) into focus in the same plane. Achromatic lenses can be doublets or triplets, with two or three individual glasses cemented together.
Material--------------------BK7 Grade A or equivalent optical glasses
Design Wavalength-------480-650nm
Diameter Tolerance-------±0.1mm, ±0.15mm for Dia.≥75mm
Paraxial Focus Length-----±2% at 546.1nm
Centration-----------------<3 arc minutes
Clear Aperture------------->80%
Surface Figure-------------λ/4 at 632.8nm
Surface Quality------------60-40 scratch and dig
Coatings-------------------Antireflection coatings or NIR coatings
Bevel-----------------------A slight protective bevel
(For different applications, there are various choices in the specifications, which must be determined according to users’ specific requirements.)
Products include:
●Achromatic lens
●Meniscus Lens
●Double-concave Lens
●Plano-concave Lens
●Double-convex Lens
●Plano-convex Lens
