25.4mm Diameter (AR) Coated CaF2 Optical Biconcave Lens

• After-sales Service: Repair for free
• Warranty: 1 year
• Usage: Lighting, Medical, Optical, Photography, Astronomy
• Type: Concave Lens
• Transmittance: 90%-95%
• Shape: Single-lens
• Model NO.: CaF2 lens
• Material: CaF2
• 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: 3000 Pieces

Product Description

Dia25.4mm AR Coated CaF2 Biconcave Lens

 

Specifications:
 

Items	Description
Biconcave Lens	Material:	CaF2,monocrystal
	Diameter:	25.4+0.0/-0.1mm
	Center thickness:	2.0+/-0.1mm
	Focal length:	-50mm+/-3%@632.8nm
	ROC1:	22.85mm,CC
	ROC2:	22.85mm,CC
	Flatness:	S1&S2:PV<1/4L@632nm
	Surface quality:	S1&S2:40-20
	Centerness:	<3arcmin
	Clear aperture:	>90%
	Chamfer:	<0.25mmx45deg
	Coating:	S1&S2:AR coating,Rabs<0.5%@700-900nm,AOI:0deg
		LIDT:>2.5J/cm^2,20ns,10Hz@800nm
	Standard:	MIL-PRF-13830B

 

Control  code	Control items	Inspection instrument/method
CPG	Diameter:	Mitutoyo Vernier caliper
	Surface Quality:	Naked eye test& 15W LED cold light
	Flatness:	ZYGO interferometer
	Centerness:	TRIOPTICS center instrument or CPG customized instrument
	Chamfer:	Magnifier X6& naked eye test
	Coating:	Agilent Cary 7000