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Offer
From Non Premium Member |
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Type: |
Sell |
| Subject: |
Achromatic Lenses(Doublets) |
| Description: |
Lenses have many applications in range from the simple collection of the scanning of laser beams to precise imaging and image transferring.
Achromatic (Doublets)Lenses Achromat consists of a positive low-index Crown Glass lens element cemented to a negative high-index Flint Glass lens element. The elements are chosen so as to cancel chromatic aberration at two well-separated wavelengths, usually in the blue and red region of the spectrum. Focal length is constant at those two wavelengths and focal length shifts are virtually eliminated across the visible wavelengths. One frequent use is to achieve diffraction limited focusing of a laser beam. Negative Achromat is typically used when there is a need to eliminate chromatic aberration. In addition to reducing chromatic aberration at the design wavelengths, spherical aberration and coma are greatly reduced.
Specifications:
Material: Grade A optical glass or Fused Silica
Dimension Tolerance: +0.0, -0.1mm
Center Thickness Tolerance: ±0.1mm
Paraxial Focal Length: ±2%
Surface quality: 60/40
Clear Aperture: >85%
Surface Figure: λ/4 @633nm
Centration: 3 arc minutes
Bevel: <0.25mm×45°
Coating: Upon requirement
Typical Sizes
Material N-BK7&N-SF5
ALP001 6.0 15.0 8.831 -6.55 -19.77 2.71 1.0 13.07
ALP002 6.0 20.0 12.36 -8.51 -24.38 2.6 1.0 18.29
ALP003 6.0 25.0 15.70 -10.67 -29.99 2.3 1.0 23.46
ALP004 6.0 30.0 18.88 -12.94 -36.48 1.9 1.0 28.69
ALP005 8.0 25.0 15.60 -10.81 -30.48 2.9 1.0 23.13
ALP006 8.0 30.0 18.88 -12.88 -36.22 2.7 1.0 28.28
ALP101 10.0 20.0 12.32 -9.02 -25.23 3.8 1.0 17.63
ALP102 12.0 25.0 15.35 -11.35 -31.92 4.2 1.3 22.29
ALP103 12.7 30.0 18.54 -13.49 -37.84 4.0 1.3 27.36
ALP104 12.7 40.0 25.23 -17.54 -48.75 3.4 1.3 37.78
ALP105 12.7 50.0 31.26 -21.93 -62.37 3.1 1.3 47.99
ALP106 12.7 60.0 37.33 -26.42 -75.86 2.8 1.3 58.13
ALP107 12.7 75.0 46.77 -32.96 -94.62 2.6 1.3 73.23
ALP108 13.0 40.5 25.41 -18.07 -50.47 3.0 1.3 38.48
ALP109 14.0 44.0 27.54 -19.54 -54.95 3.3 1.3 41.83
ALP110 18.0 40.0 24.27 -18.37 -53.09 5.4 1.5 36.51
ALP111 18.0 50.0 31.69 -22.00 -60.57 4.8 1.5 46.99
ALP112 18.0 60.0 37.84 -26.49 -73.79 4.1 1.5 57.30
ALP201 25.4 60.0 37.33 -27.16 -75.86 7.0 2.0 55.57
ALP202 25.4 120.0 73.28 -54.33 -159.9 4.2 2.0 117.1
ALN101 12.7 -25.0 -15.28 13.37 39.17 1.5 2.5 -26.61
ALN102 12.7 -30.0 -24.72 19.10 56.10 1.5 2.5 -41.56
ALN201 25.4 -40.0 -29.79 26.85 82.41 2.0 4.3 -52.66
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| Placement Date: |
Jan 23, 2012 |
| Expiration Date: |
Jan 21, 2017 |
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