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Optical Dia. 2.89inch Sf4 Glass and N-Lak10 Glass Glued Doulet

Basic Info

Model No.:  VYO040

Product Description



Model NO.: VYO040


Type: Glued Lenses


Shape: Customized


Lenses Color: Clear


Customized: Customized


Dia. 25.4mm: 1 Inch


Transport Package: as Requested


Origin: China




Usage: Medical


Transmittance: >95%


Material: Optical Glass


Certification: RoHS, SGS, ISO9001


Coating: Customized


Trademark: VY or OEM


Specification: RoHS


HS Code: 9001909090


Achromatic Lenses/cemented lenses/glued lenses/doulets are achromatic consists of a positive low-Index Crown Glass lens element cemented to a negative high-index Flint Glass lens element. The elements are chosen so as to cancel chromatic aberration at two well-separated wavelengths, usually in the blue and red region of the spectrum. Focal length is constant at those two wavelengths and focal length shifts are virtually eliminated across the visible wavelengths. One frequent use is to achieve diffraction limited focusing of a laser beam. Negative Achromats are typically used when there is a need to eliminate chromatic aberration. In addition to reducing chromatic aberration at the design wavelengths, spherical aberration and coma are greatly reduced.



VY Optics Photoelectric Technology Co., Ltd. Supply all kinds of achromatic lens as per your requested.



Specification of our achromatic lens as follow:

*Material: BK7 and ZF2(or according to your request)

*Dia.: +0/-0.05

*Center thickness tolerance: +/-0.1

*Surface quality: 60-40 Scrath/Dig

*Surface figure: 0.5-0.2

*Centration < 3arc min

*Chamfer: 0.1-0.25*45 degrees

*Design wavelength: 486.1mm, 587.6mm, 656.3mm

(the parameter is demision of nomal lens, so specification will be changed according to different demision and material)Optical Dia. 2.89inch Sf4 Glass and N-Lak10 Glass Glued Doulet

Range of diameter Dia.0.7mm-Dia.400mm
Range of curve radius R1.5-R∞ etc.
Tolerance of diameter +/-0.1, +/-0.01, +/-0.005 etc.
Surface accuracy λ , 1/2λ , 1/4λ , 1/10λ etc.
Tolerance of Thickness +/-0.1, +/-0.05, +/-0.01 etc.
Centration +/-2′,+/-1′ etc.
Aperture N 5, 1 etc.
Irregularity ΔN 2, 1, 0.5, 0.2 etc.
Surface quality 60/40, 40/20, 20/10, 10/5 etc.

Contact us if you need more details on Optical Glued Doulet. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Optical Doulet、Optical Cemented Lenses. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Optical Achromatic Lens

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