- Overview
- Product Description
- Technical Information
- Product Parameters
- Processing
- Packaging and Delivery
- FAQ
Basic Info.
Product Description
Achromatic lenses focus colors at the same point, allowing the user to focus on the image. Compared to uncorrected singlets, achromatic lenses produce sharper images, making viewing easier and perceiving more accurate.
They revolutionize the way you image. Despite the ever-increasing quality of lenses, achromatic lenses remain a staple for scientific and non-scientific optical applications.
Anatomy of an Achromatic Lens
An achromatic lens, also referred to as an achromat, typically consists of two optical components cemented together, usually a positive low-index (crown) element and a negative high-index (flint) element. In comparison to a singlet lens, or singlet for short, which only consists of a single piece of glass, the additional design freedom provided by using a doublet design allows for further optimization of performance. Therefore, an achromatic lens will have noticeable advantages over a comparable diameter and focal length singlet.
An achromatic lens comes in a variety of configurations, most notably, positive, negative, triplet, and aspherized. It is important to note that it can be a doublet (two elements) or triplet (three elements); the number of elements is not related to the number of rays for which it corrects. In other words, an achromatic lens designed for visible wavelengths corrects for red and blue, independent of it being a doublet or triplet configuration. Refer to Figures 1- 4 for illustrations of each type.
Material: | Optical Glass |
Material 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
|
Coating: | AR OR BBAR |
| Diameter Range: | 5~260mm |
Besides Surface Flatness, Eccentricity, Focal Length Tolerance, Diameter Tolerance and soon, specifications of Plano-convex lens also include index of refraction, Abbe number, laser damage threshold, Knoop hardness and scratch resistance. If you want to know more, please contact our engineers, we can customize the production of precision plano-convex lens according to your needs.
Besides the basic processing equipments for optical components, such as the raw material cutting machines, milling machines, fine grinders, polishers, etc., Oplens uses the single point diamond turning machine (SPDT) for highly accurate optical lenses with nanometer scale surface accuracy and dimensional accuracy.
Oplens equipped Precitech SPDT with Taylor Hobson PGI 3D profilometer. The results of the profilometer measurement system can be directly put into the diamond machine to provide positive compensation values for the machining of aspheric components. At the same time, curvature, surface flatness, roughness and other indicators can be quantified effectively and accurately.
Inner packing:special protective packing for optical products.
Outer packing:carton, Shock absorption material and bubble wrap.
Delivery Time: 7-20days 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.
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 request
