需要我們的協助嗎？
TECHSPEC®組件由愛特蒙特光學設計、指定或製造。進一步瞭解
Aperture Kit for Achromat Prototyping Kit
一對消色差透鏡可在成像應用中提供令人驚訝的效能。藉由此系統，可以實驗不同的焦距變換比率，以取得多種放大倍率與視場。 The camera sensor and object should be placed at the focal length of the image and object achromat, respectively (see diagram). The f/# of the lens can be varied by using different apertures. The aperture is a center spacer that slides (no threads) into place between the achromats. Proper focusing can be attained using C-Mount spacers (coarse) and the Helicoid Barrel (fine). The Achromat Protoyping cell threads directly into the helicoid barrel and retainers are used to fix the relative position of the cell. Only 12.5mm diameter achromats can be used with this system. Achromat prototyping kit (#54-666) includes helicoid barrel, achromat prototyping cell, two retaining rings (15mm, for inside helicoid barrel) and 12.5mm achromat kit. Achromat prototyping cell (#54-719) includes the mounting cell, two retainers (for inside mounting cell) and aperture kit. Aperture kit (#54-720) contains seven apertures of 0.0 (customizable by user), 2.0, 3.0, 4.0, 6.0, 8.0, and 10.6mm diameters.
| Calculating Magnification: Table of PMAG Values [Mag = (Image Achromat F.L.) / (Object Achromat F.L.)] | |||||||||||||
| Object FL | Image Achromat Focal Length | ||||||||||||
| 14.0 | 20.0 | 25.0 | 30.0 | 35.0 | 40.0 | 45.0 | 50.0 | 60.0 | 75.0 | 80.0 | 90.0 | 100.0 | |
| 14.0 | 1.00* | 1.43 | 1.79 | 2.14 | 2.50 | 2.86 | 3.21 | 3.57 | 4.29 | 5.36 | 5.71 | 6.43 | 7.14 |
| 20.0 | 0.70* | 1.00 | 1.25 | 1.50 | 1.75 | 2.00 | 2.25 | 2.50 | 3.00 | 3.75 | 4.00 | 4.50 | 5.00 |
| 25.0 | 0.56* | 0.80 | 1.00 | 1.20 | 1.40 | 1.60 | 1.80 | 2.00 | 2.40 | 3.00 | 3.20 | 3.60 | 4.00 |
| 30.0 | 0.47* | 0.67 | 0.83 | 1.00 | 1.17 | 1.33 | 1.50 | 1.67 | 2.00 | 2.50 | 2.67 | 3.00 | 3.33 |
| 35.0 | 0.40* | 0.57 | 0.71 | 0.86 | 1.00 | 1.14 | 1.29 | 1.43 | 1.71 | 2.14 | 2.29 | 2.57 | 2.86 |
| 40.0 | 0.35* | 0.50 | 0.63 | 0.75 | 0.88 | 1.00 | 1.13 | 1.25 | 1.50 | 1.88 | 2.00 | 2.25 | 2.50 |
| 45.0 | 0.31* | 0.44 | 0.56 | 0.67 | 0.78 | 0.89 | 1.00 | 1.11 | 1.33 | 1.67 | 1.78 | 2.00 | 2.22 |
| 50.0 | 0.28* | 0.40 | 0.50 | 0.60 | 0.70 | 0.80 | 0.90 | 1.00 | 1.20 | 1.50 | 1.60 | 1.80 | 2.00 |
| 60.0 | 0.23* | 0.33 | 0.42 | 0.50 | 0.58 | 0.67 | 0.75 | 0.83 | 1.00 | 1.25 | 1.33 | 1.50 | 1.67 |
| 75.0 | 0.19* | 0.27 | 0.33 | 0.40 | 0.47 | 0.53 | 0.60 | 0.67 | 0.80 | 1.00 | 1.07 | 1.20 | 1.33 |
| 80.0 | 0.18* | 0.25 | 0.31 | 0.38 | 0.44 | 0.50 | 0.56 | 0.63 | 0.75 | 0.94 | 1.00 | 1.13 | 1.25 |
| 90.0 | 0.16* | 0.22 | 0.28 | 0.33 | 0.39 | 0.44 | 0.50 | 0.56 | 0.67 | 0.83 | 0.89 | 1.00 | 1.11 |
| 100.0 | 0.14* | 0.20 | 0.25 | 0.30 | 0.35 | 0.40 | 0.45 | 0.50 | 0.60 | 0.75 | 0.80 | 0.90 | 1.00 |
| *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 Diameter | Image Achromat Focal Length | ||||||||||||
| 14.0 | 20.0 | 25.0 | 30.0 | 35.0 | 40.0 | 45.0 | 50.0 | 60.0 | 75.0 | 80.0 | 90.0 | 100.0 | |
| 10.60 | 1.32 | 1.89 | 2.36 | 2.83 | 3.30 | 3.77 | 4.25 | 4.72 | 5.66 | 7.08 | 7.55 | 8.49 | 9.43 |
| 8.00 | 1.75 | 2.50 | 3.13 | 3.75 | 4.38 | 5.00 | 5.63 | 6.25 | 7.50 | 9.38 | 10.00 | 11.25 | 12.50 |
| 6.00 | 2.33 | 3.33 | 4.17 | 5.00 | 5.83 | 6.67 | 7.50 | 8.33 | 10.00 | 12.50 | 13.33 | 15.00 | 16.67 |
| 4.00 | 3.50 | 5.00 | 6.25 | 7.50 | 8.75 | 10.00 | 11.25 | 12.50 | 15.00 | 18.75 | 20.00 | 22.50 | 25.00 |
| 3.00 | 4.67 | 6.67 | 8.33 | 10.00 | 11.67 | 13.33 | 15.00 | 16.67 | 20.00 | 25.00 | 26.67 | 30.00 | 33.33 |
| 2.00 | 7.00 | 10.00 | 12.50 | 15.00 | 17.50 | 20.00 | 22.50 | 25.00 | 30.00 | 37.50 | 40.00 | 45.00 | 50.00 |
| 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. | |||||||||||||
 |
|||||||||||||
EO Spec Sheet
1-800-363-1992
or view regional numbers
QUOTE TOOL
enter stock numbers to begin
Copyright 2025, Edmund Optics Inc., 14F., No.83, Sec. 4, Wenxin Road, Beitun District , Taichung City 406, Taiwan (R.O.C.)
California Consumer Privacy Act (CCPA): Do Not Sell My Information