Dia25.4mm 400-700nm Ar Coated Optical Doublet Achromatic Lens

• Customization: Available
• After-sales Service: Repair for free for any quality problem
• Warranty: 1 year
• Model NO.: Doublet lens
• Type: Convex Lens
• Transmittance: 90%-95%
• Shape: Cemented
• Material: Optical Glass
• Lenses Color: Clear
• Certification: RoHS, ISO9001, CE, TUV
• Customized: Customized
• Coating: Anti-Reflection
• Transport Package: Carton, Blister, Customized
• Specification: as required
• Trademark: CPG
• Origin: China
• HS Code: 9001909090
• Production Capacity: 5000 Pieces

Product Description

Dia25.4mm 400-700nm AR Coated Optical Doublet Achromatic Lens

 

Specification:
 

Items	Description
Achromatic Lens	Material:	Schott N-FK5
		Schott F2
	Diameter:	25.4+0.0/-0.1mm
	Center thickness:	5.0+/-0.2mm
	Focal length:	50.0mm+/-5%@632.8nm
	ROC1:	infinity
	ROC2=ROC3:	74.83+/-0.1mm CX
	ROC4:	74.83+/-0.1mm CX
	Flatness:	S1&S2&S3&S4:IRR<1/[email protected]
	Surface quality:	S1&S2&S3&S4:60-40
	Centerness:	<3arcmin
	Clear Aperture:	>D9.0mm
	Chamfer:	<0.25mmx45deg
	Coating:	S1&S4:AR coating,R>98%@400-700nm,AOI=0deg
	Standard:	MIL-PRF-13830B

Descriptions:

Spherical aberration occurs because spherical surfaces are not the ideal shape with which to make a lens, but they are by far the simplest shape to which glass can be ground and polished and so are often used. Spherical aberration causes beams parallel to, but distant from, the lens axis to be focused in a slightly different place than beams close to the axis. This manifests itself as a blurring of the image. Lenses in which closer-to-ideal, non-spherical surfaces are used are called aspheric lenses. These were formerly complex to make and often extremely expensive, but advances in technology have greatly reduced the manufacturing cost for such lenses. Spherical aberration can be minimized by careful choice of the curvature of the surfaces for a particular application: for instance, a Plano-convex lens which is used to focus a collimated beam produces a sharper focal spot when used with the convex side towards the beam source.

Features:

. Diverge incident light
. Reduce spherical aberration