As the basic optical element, singlet lenses are commonly used in engineers’ design, and further assembly works for a variety of applications such as imaging collimating. At Dongqiao Optics, our manufacturing capability covers Plano Concave/Convex, Bi-Concave, Bi-Convex, Positive and Negative Meniscus, ranged from many variations of optical glass and fused silica and even crystal. With our reliable coating technique, AR or V-coatings can be applied to reach expectation. Special treatment i.e. edge blackening / special packaging / labeling also available upon request.
Our singlet lenses production competency helps our customers to build their unique and cutting edge applications such as microscopy device, diameter 2.5mm~3.5mm design, for projection/ observation applications, we can deliver 180+mm in diameter singlet lens. Besides regular visible spectrum singlet lenses, NIR / SWIR/ / LWIR/ MWIR lens are also available at our facility, please refer to our IR optics for more information.
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COMMERCIAL GRADE |
FACTORY STANDARD |
PRECISION GRADE |
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Diameter Tolerance(mm) |
±0.05 |
±0.03 |
±0.0125 |
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Center Thickness(mm) |
±0.01 |
±0.03 |
±0.025 |
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Radius (%) |
±1% |
±0.5% |
±0.3% |
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Focal Length Tolerance (%) |
±3% |
±1% |
±0.5% |
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Cosmetic(MIL-C-13830A) |
100-80 |
40-20 |
10-5 |
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Figure Tolerance in λ(Pow/irreg) |
3 - 1 |
2 - 1/4 |
1 - 1/10 |
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Centration (Arc min) |
6 |
<3 |
<1 |
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Dia. To Thick Ratio |
9~50:1 |
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Coating (T% avg) |
96-98% |
99% |
99.5% |
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Materials |
CDGM, Ohara, Schott & Infrared Materials |
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SINGLET LENSES
Configurations available:
Plano-Convex, Plano-Concave, Bi-Concave, Bi-Convex, Positive and Negative Meniscus
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沪ICP1236456