New Arrival China Underwater Coating Dome Lens - 50mm Precision Polished Aspheric Lenses – DG
New Arrival China Underwater Coating Dome Lens - 50mm Precision Polished Aspheric Lenses – DG Detail:
DG Optics specializes in the development, production, and sales of optical products made of any material including BK7,quartz,sapphire etc. The product line covers thousands of categories, such as Dove Prisms, Filters, Rod Lenses, and sapphire watch Windows. Applications include defense and security, aerospace, optical ball covers for underwater cameras, automotive, medical, entertainment and design lighting, electronics and optoelectronics, laser technology, energy and utilities, universities and research, imaging lenses, microscopic inspection, and other industries. Many products and technologies have obtained national patents and software Copyrights, and have been approved by ISO9001 certificate.
Detailed Photos
Product Description
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 |
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"Sincerity, Innovation, Rigorousness, and Efficiency" will be the persistent conception of our company to the long-term to establish together with customers for mutual reciprocity and mutual gain for New Arrival China Underwater Coating Dome Lens - 50mm Precision Polished Aspheric Lenses – DG , The product will supply to all over the world, such as: Botswana, Sri Lanka, Hyderabad, We always insist on the management tenet of "Quality is first, Technology is basis, Honesty and Innovation".We are able to develop new products continuously to a higher level to satisfy different needs of customers.
By Helen from Seychelles - 2017.08.16 13:39
It's really lucky to find such a professional and responsible manufacturer, the product quality is good and delivery is timely, very nice.
By Brook from Eindhoven - 2017.09.26 12:12
