New 2024 Free Sample/Inquiry for Drawings K9 Optical Flat Concave Lens Dia: 50.8mm F: -250.0mm

• After-sales Service: Return or Replacement
• Warranty: 2 Years
• Usage: Lighting, Medical, Optical, Photography
• Model NO.: Customization
• Type: Concave Lens
• Transmittance: >95%
• Shape: Single-lens
• Material: Glass
• Lenses Color: Clear
• Certification: RoHS, ISO9001, CE
• Customized: Customized
• Coating: Customized
• OEM Services: Yes
• Shipping: Express/by Sea/by Train/by Air
• Delivery Time: Depens on Qty, Normally 10-30days Production
• Customs Services: Declare & Clearance
• Diameter Tolerance: < + 0.00/ - 0.02mm
• Transport Package: Air Cushion Wrapped Carton Packaging.
• Specification: Raw Material: K9/BK7 or customized as your needs.
• Trademark: Oplens
• Origin: Chengdu, Sichuan, China
• HS Code: 9001909090
• Production Capacity: 200000PCS/Month

Product Description

2023 Export Quality OEM/ODM Service Factory Wholesale Price High-end Customization K9 Plano concave lens, Optical lens, Flat concave lens, dia:50.8mm, f:-250.0mm

Product Description

The plano concave lens is used to diverge the parallel light outward. The focal length of the flat concave lens is negative and the spherical aberration is also negative. It can be used to correct the phase difference, spherical aberration, coma and distortion of other lenses. Similar to the flat concave mirror, the side is generally opposite to the far object surface or infinity. K9 plano concave spherical lens can see the transmittance of near infrared (350-2000nm). H-K9L (N-BK7) is an optical glass commonly used in the preparation of optical elements. These uncoated plano concave lenses are prepared using H-K9L (N-BK7) conforming to ROHS standard. The collimated beam can converge on the rear focus, or the point light source can be changed into a collimated beam.

Items	Parameters
Material	optical glass, H-K9L (N-BK7)
Outer circle:	3mm-500mm ± 0.1mm
Radius of curvature:	± 1mm - ± 50000mm ± 1%
Center thickness tolerance:	± 0.05mm (we can process to ± 0.01mm with high precision)
Center deviation:	3′(we can process to 30 ″with high precision)
Surface accuracy:	λ/ 8 (high precision, we can process to 1 / 10λ)
Surface quality:	60/40 (we can process to 10-5 with high precision)
Effective caliber:	≥90%
Coating:	Maultilayer Antireflective Coating A:400-700nm B:650-1050nm C:1000-1650nm

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.

Company Profile

 

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.

 

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.

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. 

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 10-30 wroking days 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.