China Supplier Large Diameter Concave Lens Biconcave Optical Glass Lens

• Customization: Available
• After-sales Service: Return or Replacement
• Warranty: 2 Years
• Model NO.: Customization
• Usage: Lighting, Medical, Optical, Photography, Imaging
• 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

China supplier large diameter concave lens biconcave optical glass lens

Product Description

 

 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:

Biconcave Lenses are made from BK7/K9 material, which are manufactured with both surfaces concave.
These lenses have negative focal lengths.
These lenses diverge collimated incident light and form virtual images, which are seen through the lens. They are often used to expand light or increase focal lengths in existing systems.
They are used in laser beam expanders, optical character readers, viewers, and projection systems.
We will provide precision grade Double Concave Lenses with tighter manufacturing tolerances.
Our company is a professional customized-oriented optical company.
Our main products are prisms including triangular prisms,penta prisms,roof prisms.
Lens such as plano convex,plano concave,biconvex,biconcave.
Telescope :binocular telescope,digital camera

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.
 

Company Profile

    Oplens has been committed to providing customers with high-precision optical system solutions over 16 years, covering the complete manufacturing process from the design, processing and assembly of various optical components and mechanics. It occupies 10,000 square meters of modernized facilities with hundreds of equipments and instruments. More importantly, Oplens owns an excellent team of more than 200 experienced engineers and workers, who provide the best products and service to their both domestic and overseas customers.
 

   Oplens (brand owned by SiChuan JUKA Optical Technology) is located in the city of Chengdu, China, which enjoys the reputation of the world optical processing center. Oplens is established during the restructuring of the Processing Department of the Institute of Optics and Electronics, Chinese Academy of Sciences.
 

   You are most welcome to experience our outstanding products and services to make your business more stably and successfully.
 

Packaging & Shipping

 

Packaging Details: Inner packing-------special protective packing for optical products. Outer packing------carton, Shock absorption material and bubble wrap Delivery Time:7-20days Delivery: Generally, we use the Fedex, DHL, UPS, TNT, Shunfeng, etc. Please note it before delivery. Transit time deponds on the express and destination. By the way, we would re-check all the details before delivery.

 

Relate Products

Our manufacturing capability of optical elements can supply a large variety of spherical & aspheric lenses, single prisms, windows, mirrors, laser & infrared optical components, etc. We have hundreds of grinders & polishers, spectrophotometers, Taylor Hobson profilometers, Optorun coating chambers, and interferometers of Veeco and Zygo to process and inspect all the optical components and make sure all customer standards are perfectly met.
 

 

FAQ

 

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.