Singlet Lenses

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Singlet lens is a lens consisting of a pure single element, which can be considered as the fundamental element of developing optical systems. Based on optical engineers’ design, multiple singlet lenses might be utilized within an optical system with other optics.

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.

	COMMERCIAL GRADE	FACTORY STANDARD	PRECISION GRADE
Diameter Tolerance(mm)	±0.05	±0.03	±0.0125
Center Thickness(mm)	±0.01	±0.03	±0.025
Radius (%)	±1%	±0.5%	±0.3%
Focal Length Tolerance (%)	±3%	±1%	±0.5%
Cosmetic(MIL-C-13830A)	100-80	40-20	10-5
Figure Tolerance in λ(Pow/irreg)	3 - 1	2 - 1/4	1 - 1/10
Centration (Arc min)	6	<3	<1
Dia. To Thick Ratio	9~50:1
Coating (T% avg)	96-98%	99%	99.5%
Materials	CDGM, Ohara, Schott & Infrared Materials

SINGLET LENSES
Configurations available:
Plano-Convex, Plano-Concave, Bi-Concave, Bi-Convex, Positive and Negative Meniscus

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Singlet Lenses

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