China Gold Supplier for Optical Bk7 Glass Hemisphere Dome Lenses - double convex lens – DG
China Gold Supplier for Optical Bk7 Glass Hemisphere Dome Lenses - double convex lens – DG Detail:
Bi-Convex Lenses are the best choice where the object and image are at equal or near equal distance from the lens. When the object and image distance are equal (1:1 magnification), not only is spherical aberration minimized, but also coma, distortion, and chromatic aberration are identically canceled due to the symmetry. Bi-convex lenses function similarly to plano-convex lenses in that they have a positive focal length, and focus parallel rays of light to a point. Both surfaces are spherical and have the same radius of curvature, thereby minimizing spherical aberration. As a guideline, bi-convex lenses perform within minimum aberration at conjugate ratios between 5:1 and 1:5. Outside this magnification range, plano-convex lenses are usually more suitable.
Material for choices :
BK7, fused silica&quartz, and others demanded.
Quick Details
| Place of Origin: | Jiangsu，China | |
| Brand Name: | DG Optics | |
| Usage: | Optical | |
| Material: | Fused silica, Quartz, BK7, and others | |
| Structure: | Double convex | |
| Shape: | Round, square | |
| Surface Quality: | 40/20 ,20/10 | |
| Coating： | MgF2, VIS 0°, VIS-NIR, NIR II, VIS-EXT | |
| Diameter | 0.5-600mm | |
| Tolerance | ± 0.001mm Minimum |
Supply Ability
Supply Ability: 6000000 Piece/Pieces per Month
Packing
Packaging Details
Inner packing——-special protective packing for optical products.
Outer packing——carton, Shock absorption material and bubble wrap
Delivery
Port :Shanghai
Transportation—–International Air Transport (UPS DHL FEDEX SF…)
Delivery Detail——2-25workdays
Product detail pictures:
Related Product Guide:
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By Murray from Dominica - 2017.08.18 11:04
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By Norma from Los Angeles - 2017.11.01 17:04
