China Cheap price Bk7 Plano Convex Spherical Lenses - Precision Polished Aspheric Lenses – DG
China Cheap price Bk7 Plano Convex Spherical Lenses - Precision Polished Aspheric Lenses – DG Detail:
Small aspheric glass lenses can be made by molding, which allows cheap mass production. Due to their low cost and good performance, molded aspheres are commonly used in inexpensive consumer cameras, camera phones, and CD players.They are also commonly used for laser diode collimation, and for coupling light into and out of optical fibers.
Larger aspheres are made by grinding and polishing. Lenses produced by these techniques are used in telescopes, projection TVs, missile guidance systems, and scientific research instruments. They can be made by point-contact contouring to roughly the right form which is then polished to its final shape. In other designs, such as the Schmidt systems, the aspheric corrector plate can be made by using a vacuum to distort an optically parallel plate into a curve which is then polished “flat” on one side. Aspheric surfaces can also be made by polishing with a small tool with a compliant surface that conforms to the optic, although precise control of the surface form and quality is difficult, and the results may change as the tool wears.
Product Parameters
| Place of Origin: | Jiangsu,China, 2 hours by car from Shanghai |
| Brand Name: | DG Optics |
| Material | BK7 ,Fused silica, Sapphire ,CaF2, ZnSe, Si, Ge |
| Coating | UV, IR , SWIR, NIR ,VIS |
| Structure: | ASPHERICAL |
| Surface Quality: | 40/20, 20/10, 5/0 |
| Diameter | 0.5-600mm |
| Clear Aperture | Over 90% |
| Chamfer | 0.1-0.3 mm*45 degree |
| Focal Length Tolerance | +/-1% |
| Irregularity (P-V) @ 632.8nm: | λ/4 |
Coating as your quired
Production process
Optical design centre
Applications
Other lens types :
Product detail pictures:
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we can offer high quality products, competitive price and best customer service. Our destination is "You come here with difficulty and we give you a smile to take away" for China Cheap price Bk7 Plano Convex Spherical Lenses - Precision Polished Aspheric Lenses – DG , The product will supply to all over the world, such as: Spain, Johannesburg, Yemen, We supply skilled service, prompt reply, timely delivery, excellent quality and best price to our customers. Satisfaction and good credit to every customer is our priority. We focus on every detail of order processing for customers till they have received safe and sound items with good logistics service and economical cost. Depending on this, our products and solutions are sold very well in the countries in Africa, the Mid-East and Southeast Asia. Adhering to the business philosophy of ??customer first, forge ahead', we sincerely welcome clients from at home and abroad to cooperate with us.
By Klemen Hrovat from Lahore - 2017.12.09 14:01
Timely delivery, strict implementation of the contract provisions of the goods, encountered special circumstances, but also actively cooperate, a trustworthy company!
By Penny from Georgia - 2018.06.09 12:42
