Stock D25.4mm F-60 Focus Plano Concave Lens N-BK7 Optical Glass Spherical Lenses for Sale
Stock D25.4mm Focus Plano Concave Lens N-BK7 Optical Glass for Telescope
| Material | Dia | EFL | Dia Tolerance | Thickness Tolerance | Te | Tc | Surface Quality | Flatness | Centration | Coating |
| H-K9L | 25.4 | -30 | +0/-0.1 | +/-0.1 | 7.7 | 2 | 60/40 | L/4 | ±3′ | No |
| H-K9L | 25.4 | -60 | +0/-0.1 | +/-0.1 | 4.2 | 2 | 60/40 | L/4 | ±3′ | No |
| H-K9L | 25.4 | -100 | +0/-0.1 | +/-0.1 | 3.5 | 2 | 60/40 | L/4 | ±3′ | No |
| H-K9L | 25.4 | -150 | +0/-0.1 | +/-0.1 | 3 | 2 | 60/40 | L/4 | ±3′ | No |
Other stock size you may need
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Material |
Dia | EFL | Diameter Tolerance | Thickness Tolerance | Te | TC | Surface Quality | Flatness | Centration | quanlity | Unit price |
| mm | mm | mm | mm | PC | USD/PC | ||||||
| H-K9L | 6 | -10 | +0/0.2 | +/-0.2 | 2.9 | 2 | 40/20 | L/4 | ±1′ | 2 | 10.15 |
| H-K9L | 10 | -15 | ±0.05 | ±0.05 | 3.53 | 2.07 | 60/40 | 5 | ±3′ | 4 | 10.15 |
| H-K9L | 12.7 | -15 | +0/-0.1 | +/-0.1 | 5 | 1.85 | 40/20 | L/4 | ±3′ | 2 | 10.15 |
| H-K9L | 20 | -50 | +0/0.2 | +/-0.2 | 4 | 2 | 40/20 | L/4 | ±1′ | 2 | 12.00 |
| H-K9L | 25.4 | -30 | +0/-0.1 | +/-0.1 | 7.7 | 2 | 60/40 | L/4 | ±3′ | 2 | 9.23 |
| H-K9L | 25.4 | -60 | +0/-0.1 | +/-0.1 | 4.2 | 2 | 60/40 | L/4 | ±3′ | 2 | 9.23 |
| H-K9L | 25.4 | -100 | +0/-0.1 | +/-0.1 | 3.5 | 2 | 60/40 | L/4 | ±3′ | 2 | 9.23 |
| H-K9L | 25.4 | -150 | +0/-0.1 | +/-0.1 | 3 | 2 | 60/40 | L/4 | ±3′ | 2 | 9.23 |
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Our company Bohr Optics Co.,Ltd specialized in optical products with over 10 years industry experience in design, manufacture, inspection and exportation.
Bohr Optics located in Jilin Province, where is the birthplace of optical technology in China, good industry environment helped us always keep in the leadership position. But we don't satisfied with it. Clients different needs inspired us do our best to meet it. On the other hand, stability of trained staff help us make better development and service. In addition, 3 production lines can meets customers large demands, the production facility and inspect keep the goods in required quality.
All above make sure we could offering high quality products like optical prisms, lens, filters, windows and etc. Any comments, feel free contact us.
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