China Custom Optics High Precision Biconcave Lens Support 5-260mm Diameter Range OEM

• After-sales Service: Return or Replacement
• Warranty: 2 Years
• Usage: Lighting, Medical, Optical, Photography, Imaging
• Model NO.: Biconcave/Doube Concave Lens 4
• Type: Concave Lens
• Transmittance: >95%
• Shape: Single-lens
• Material: Optical Glass
• Lenses Color: Clear
• Certification: RoHS, ISO9001, CE, TUV
• Customized: Customized
• Coating: Coating:Ar or Bbar
• Surface Flatness: < λ/5 @ 633nm
• Scratch/Dig: < 40/20 (Both Sides)
• Eccentricity: ≤ 1arcmin
• Focal Length Tolerance: < ± 1%
• Diameter Tolerance: < + 0.00/ - 0.02mm
• Thickness Tolerance: < ± 0.05
• Clear Aperture: ≥ 95% of Diameter
• Blacking Edge: Gt-7 or Equivalent
• Diameter Range: 5~260mm
• Shipping: Express/by Sea/by Train/by Air
• OEM Services: Yes
• Sample Services: Yes
• Delivery Time: Depens on Qty, Normally 10-30days Production
• Transport Package: Air Cushion Wrapped Carton Packaging.
• Specification: Material Specification: H-K9L or customized.
• Trademark: Oplens
• Origin: Chengdu, Sichuan, China
• HS Code: 9001909090
• Production Capacity: 200000PCS/Month

Product Description

factory wholesale price optical biconcave lenses with high precision

   A biconcave lens, also named double concave lens, is usually made of flint glass and used for beam divergence. It's focal length is negative but the parallel incident ray diverges outward. The two sides of the biconcave lens curvature radius can be equal or not. Combined with plano-convex lens, it is generally used in beam expanders, projection optical systems and optical viewers, etc.

 Feature:

Store Room
Serial No.	Parts no.	Material	DIA	R1	R2	TC	F
1	D72F80	H-F4	72	-169.92	-71.8	12	-80
2	D30F77	JGS1	30	-70.96	-70.96	3	-77
3	D21F51	H-ZF6	21	-77.39	-77.39	2.5	-51
4	D25F25	H-F4	25	-36.73	-29.17	3	-25
5	D10F10.4	H-K9L	10	-11.092	-11.092	2	-10.4

   Oplens can not only customize the common plano-concave lens of N-BK7 or fused quartz, but also customize the biconcave lens of any glass material.

FAQ?
 

Q1:Can you send me free samples or Can i have an sample order ?

A: Yes, We accept sample orders, and we're also willing to send you free sample to  test and check its quality . if we don't have the item in stock , then you could place an sample order.

Q2: How many days can i get my package after placing order?

A: If the order needs customized also the quantity is big. it will take around 10-30days to produce then shipping.

Q3: OEM services available?

A: Sure, please send us your design paper on platform to confirm more details information.

Q4:We have a commercial project,Can you help me offer an optical design solution ?

A:Yes, we have professional experts who are engaged in optical design for many years , please send us more detail of your project,we will supply our most suitable solutions for you.

Q5: What shipping methods do you have?

A: For small quanities or sample could by express such as: Fedex, UPS, DHL, EMS, etc. Large scale quantity in your demands:by sea/train ,or by air.In your requests.