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Symmetric-concave lenses, unmounted (N-BK7)
Related Products
![](/out/Graphics/en/00069641_0.jpg)
![](/out/Graphics/en/00068095_0.jpg)
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- Two equal radii of curvature
- Surfaces uncoated
- Tolerances: Focal length f' : ± 2 %, Image distance s' : ± 2 %
-
- Our singlets are also available with the following coatings:
- VIS range (ARB2: R < 0.5 % per surface, AOI = 0°, λ = 450 - 700 nm).
- NIR range (ARB2: R < 0.5 % per surface, AOI = 0°, λ = 725 - 1050 nm).
- Nd:YAG fundamental (ARHS: R < 0.2 % per surface, AOI=0°, center wavelength 1064 nm)
- All singlets can be found in the database of our Optics Software WinLens Ϯ, please look at www.winlens.de.
- ZEMAX files can be downloaded in the document area
- For customized optics and higher volumes please contact our sales team for your individual quotation.
![Symmetric-concave lenses, unmounted (N-BK7)](/out/Graphics/en/00130966_0.jpg)
![Symmetric-concave lenses, unmounted (N-BK7)](/out/Graphics/en/00034138_0.jpg)
f: focal length (object side)
f': focal length (image side)
s: object distance
s': image distance
Ø: lens diameter
dm: center thickness
dr: edge thickness
h: primary vertex
h': sagittal height secondary vertex
F, F': focal points
H, H': principal points
Tolerances:
Focal length f': ±2%
Image distance s': ±2%
![Symmetric-concave lenses, unmounted (N-BK7)](/out/Graphics/en/00128028_0.jpg)
Part Number | Product Description | Price | Available | Quantity | To Cart |
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Symmetric-concave lenses, unmounted (N-BK7)
Part No. | Optic Size (mm) | Focal Length (mm) | Substrate | Optic Centering Accuracy | Surface Quality | Optic Center Thickness (mm) | dm Tolerance (mm) | Optic Edge Thickness (mm) | Ø Tolerance (mm) | h, h' (mm) | s, s'588 nm (mm) | f'546 nm (mm) | f'633 nm (mm) | f'1064 nm (mm) | Radius of Curvature 1 (mm) | Radius of Curvature 2 (mm) | Packaging |
G313210000 | Ø10 | -10 | N-BK7 | 10' | 3 x 0.16 | 1 | ±0.15 | 3.5 | -0.09 | 1.24 | -10.48 | -10.12 | -10.19 | -10.36 | -10.669 | 10.669 | Paper |
G313373000 | Ø12.7 | -20 | N-BK7 | 10' | 3 x 0.16 | 1.5 | ±0.10 | 3.5 | -0.12 | 0.98 | -20.55 | -19.98 | -20.12 | -20.46 | -20.983 | 20.983 | Paper |
G313374000 | Ø12.7 | -50 | N-BK7 | 10' | 3 x 0.16 | 1.5 | ±0.10 | 2.3 | -0.12 | 0.39 | -50.88 | -50.2 | -50.55 | -51.4 | -52.33 | 52.33 | Paper |
G313375000 | Ø12.7 | -100 | N-BK7 | 10' | 3 x 0.16 | 1.5 | ±0.10 | 1.9 | -0.12 | 0.19 | -101.3 | -100.4 | -101.1 | -102.8 | -104.41 | 104.41 | Paper |
G313205000 | Ø22.4 | -20 | N-BK7 | 10' | 3 x 0.25 | 1.5 | ±0.20 | 7.2 | -0.13 | 3.27 | -20.4 | -19.84 | -19.98 | -20.31 | -20.833 | 20.833 | Paper |
G313206000 | Ø22.4 | -30 | N-BK7 | 10' | 3 x 0.25 | 1.5 | ±0.20 | 5.6 | -0.13 | 2.07 | -30.62 | -30.02 | -30.23 | -30.73 | -31.396 | 31.396 | Paper |
G313214000 | Ø22.4 | -40 | N-BK7 | 10' | 3 x 0.25 | 1.5 | ±0.20 | 4.5 | -0.13 | 1.53 | -40.75 | -40.11 | -40.39 | -41.07 | -41.867 | 41.867 | Paper |
G313215000 | Ø22.4 | -50 | N-BK7 | 10' | 3 x 0.25 | 1.5 | ±0.20 | 3.9 | -0.13 | 1.21 | -50.87 | -50.2 | -50.55 | -51.39 | -52.33 | 52.33 | Paper |
G313216000 | Ø22.4 | -100 | N-BK7 | 10' | 3 x 0.25 | 1.5 | ±0.20 | 2.7 | -0.13 | 0.6 | -101.26 | -100.4 | -101.1 | -102.78 | -104.41 | 104.41 | Paper |
G313217000 | Ø22.4 | -150 | N-BK7 | 10' | 3 x 0.25 | 1.5 | ±0.20 | 2.3 | -0.13 | 0.4 | -151.39 | -150.34 | -151.4 | -153.91 | -156.22 | 156.22 | Paper |
G313249000 | Ø40 | -500 | N-BK7 | 10' | 3 x 0.16 | 2 | ±0.20 | 2.8 | -0.16 | 0.38 | -506.62 | -504.08 | -507.64 | -516.06 | -523.3 | 523.3 | Paper |