在成像应用中使用一对消色差镜片无疑使性能会提高不少。本套产品可用不同焦距的镜片组合成各种倍率和视场的系统。使用时将CCD放在像方焦点处,呈像物体放在消色差物镜方(具体位置见图表),镜头的f/#可通过调整光栏而变化,光栏是一个中心环,可移动到消色差镜片中间(没有螺纹)。通过C接口的隔圈粗调调焦到适当位置,然后用螺旋镜筒进行细调。消色差镜头单元的螺纹直接安装在螺旋筒上,固定装置用来锁定其相对位置。只有直径为12.5mm直径的消色差透镜可用本产品。消色差系统成套设备(#54-666)包括螺旋筒、消色差镜片,两个固定环(15mm,用在螺旋筒内部)、以及一套直径为12.5mm的消色差透镜。消色差实验单元(#54-719)包括安装结构件、两个固定筒(用于结构件内部)、和一整套光栏。整套光栏(#54-720)包括7个大小规格不同的光栏直径为0.0(由用户调整)、2.0, 3.0, 4.0, 6.0, 8.0,和 10.6mm 等。

技术信息

Calculating Magnification: Table of PMAG Values [Mag = (Image Achromat F.L.) / (Object Achromat F.L.)]
Object FLImage Achromat Focal Length
14.020.025.030.035.040.045.050.060.075.080.090.0100.0
14.01.00*1.431.792.142.502.863.213.574.295.365.716.437.14
20.00.70*1.001.251.501.752.002.252.503.003.754.004.505.00
25.00.56*0.801.001.201.401.601.802.002.403.003.203.604.00
30.00.47*0.670.831.001.171.331.501.672.002.502.673.003.33
35.00.40*0.570.710.861.001.141.291.431.712.142.292.572.86
40.00.35*0.500.630.750.881.001.131.251.501.882.002.252.50
45.00.31*0.440.560.670.780.891.001.111.331.671.782.002.22
50.00.28*0.400.500.600.700.800.901.001.201.501.601.802.00
60.00.23*0.330.420.500.580.670.750.831.001.251.331.501.67
75.00.19*0.270.330.400.470.530.600.670.801.001.071.201.33
80.00.18*0.250.310.380.440.500.560.630.750.941.001.131.25
90.00.16*0.220.280.330.390.440.500.560.670.830.891.001.11
100.00.14*0.200.250.300.350.400.450.500.600.750.800.901.00
*Image FL of 14 is not recommended for C-Mount Cameras


Calculating the f/#: Table of f/# Values [F-Number (f/#) =( Image Achromat F.L.) / Aperture Diameter]
Aperture DiameterImage Achromat Focal Length
14.020.025.030.035.040.045.050.060.075.080.090.0100.0
10.601.321.892.362.833.303.774.254.725.667.087.558.499.43
8.001.752.503.133.754.385.005.636.257.509.3810.0011.2512.50
6.002.333.334.175.005.836.677.508.3310.0012.5013.3315.0016.67
4.003.505.006.257.508.7510.0011.2512.5015.0018.7520.0022.5025.00
3.004.676.678.3310.0011.6713.3315.0016.6720.0025.0026.6730.0033.33
2.007.0010.0012.5015.0017.5020.0022.5025.0030.0037.5040.0045.0050.00
Application Note: Achromat pairs used at moderate f/#s (f/4 - f/8) provide good aberration correction for applications that do not require wide fields of view.

通用规格

Function:

Kit