2024 Free Sample/Inquiry for Drawings Ophthalmology Black 90d Double Aspheric Lens Slit Lamp Fundus Examination

• Customization: Available
• After-sales Service: Return or Replacement
• Warranty: 2 Years
• Model NO.: Customization
• Usage: Lighting, Medical, Optical, Photography
• Type: Convex Lens
• Transmittance: >95%
• Shape: Single-lens
• Material: Optical Glass
• Lenses Color: Clear
• Certification: RoHS, ISO9001, CE, TUV
• Customized: Customized
• Coating: Customized
• Air Cushion Wrapped Carton Packaging.: H-K9l,K9 or Customized
• Scratch/Dig: < 40/20
• Focal Length Tolerance: < ± 1%
• Thickness Tolerance: < ± 0.05
• Diameter Range: 5~260mm
• OEM Services: Yes
• Delivery Time: Depens on Qty, Normally 10-30days Production
• Surface Flatness: < λ/5 @ 633nm
• Eccentricity: ≤ 1arcmin
• Diameter Tolerance: < + 0.00/ - 0.02mm
• Shipping: Express/by Sea/by Train/by Air
• Sample Services: Yes
• 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

2023 Export Quality OEM/ODM Service Factory Wholesale Price Ophthalmology Black 90D Double Aspheric Lens For Slit Lamp Fundus Examination

 

Product Description

 

Aspheric Lens

The surface profiles of aspheric lenses are not a portion of a sphere or cylinder. Their curvature radius varies with the central axis. Aspheric lenses have unique advantages over spherical lenses. For example, they can improve optical quality, and reduce optical components and design costs. They are widely used in optical instruments, images, and optoelectronics industries, such as digital cameras, CD players, and high-end microscopic instruments.

A sphere is defined by a single radius of curvature. Aspheric Lens has at least one aspherical surface. Optical engineers generally think of aspheric surfaces as aspheric, rotationally symmetric surfaces. The radius of curvature of the aspheric surface varies gradually from the center of the lens to the edge.
 

Detailed Photos

 

Feature:

Aspheric Lenses: Advantages & Disadvantages
In a nutshell, aspheric lenses have the following advantages:

They provide a thinner profile
They are lightweight and comfortable
They could be fit into most frames so you have a wide choice of styles
They have a more natural and pleasing appearance
They don't make your eyes look too big or too small
They provide a better peripheral vision by eliminating distortion
 

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 a reputation as 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.

 

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.