Optical Glass Spherical Biconcave Lens for Telescopes Coated Uncoated

• Usage: Optical, Infrared Image
• Type: Concave Lens
• Transmittance: >95%
• Shape: Single-lens
• Material: K9 Quartz Bk7 Corning7980 Germanium Silicon Znse
• Lenses Color: Clear
• Model NO.: STF98
• Certification: RoHS, CE
• Customized: Customized
• Coating: Polish+Coating
• Flatness: 1/20 Lambda
• Tolereance: +0.00/-0.01mm
• Surface Quality: 10-5
• Certeration: <1arcmin
• Transport Package: Plastic Box
• Specification: 0.1-600mm
• Trademark: Sunday Optics
• Origin: China, Changchun
• HS Code: 9001909090
• Production Capacity: 50000PCS Per Month

Product Description

Sunday Optics manufacture spherical lens, the minimum size can be 0.1mm, we are focus on high precision lens with Zygo test report, the flatness can be 1/20 lambda.We are manufacture plano convex lens, plano concave lens,bi convex lens, bi concave lens,achromatic lens.

The double concave lenses with the negative focal length, these lenses are used in Beam Expanders, optics image, laser system and so on.
 

Structure	Biconcave lens
Material	Optical glass, UVFS,Germanium, Silicon,CaF2,MgF2,ZnSe ZnS,Sapphire
Diameters Available	1mm to 600mm
Diameter Tolerance	+0.00/-0.01mm or customer design
Surface Quality	10-5
Surface Irregularity	λ/[email protected] or customer design
Thickness tolerance	+0/-0.01mm
Clear Aperture	>90% of Diameter
Chamfer	0.05-0.5mmx45degree,according to customer's needs.
Centeration	3 arcmin
Coating	Single Mag2,  Multiple Layers AR Coating        A:350-650nm        B:650-1050nm        C:1050-1585nm        D: Customer Design

Lens Show

Our Factory



Testing


Exhibition Show
Sunday Optics attended Laser World in Laser World in Munich,Frankfult Exhibition,SPIE every year.




Related Production Line
sunday optics also manufacture high precison prism, powell lens, collimator lens, glass filter, and mirror.




FAQ:
1. Are you manufacturure? can we see your factory?
    Yes. 

2. Do you have test report?
   Yes, we offer full size test report, about size, focal length, flatness, coating curve, coating plate.

3.What is your production quantity everymonth?
  It depands on the lens size and precison.

4.What is the Minimum quantity?
  1pc

5.What is your delivery time?
   samples: 10-20days

6.How should we do if the quality is not good?
  Repair or return money.