Claims
- 1. An optical system for a variable focal length lens of large effective aperture, which is focusable over an extended range, having substantially the following specification:
- ______________________________________ SYSTEM EFL HALF ANGLE OF FIELDat W/A=7.22mm (.2835 in.) 27.36.degree.at T/P=43.86mm (1.7268 in.) 4.46.degree.at MID=19.25mm (.7579 in.) 10.02.degree. THICK- NESS SPACINGSLENS RADII (mm.) (mm.) (mm.) N.sub.D V______________________________________1 R.sub.1 32 166.0901 T.sub.1=1.702 1.755 27.6 R.sub.2 =-45.7200 S.sub.1 =02 R.sub.3 =45.7200 T.sub.2 =11.430 R.sub.4 =233.4001 1.623 56.9 S.sub.2 =.10163 R.sub.5 =50.3428 T.sub.3 =7.112 R.sub.6 =-301.7523 1.651 56.2 S.sub.3 =1.4910 at W/A 27.1882 at T/P 17.7851 at MID4 R.sub.7 =70.3580 T.sub.4 =0.800 1.639 55.4 R.sub.8 =-16.8656 S.sub.4 =6.5845 R.sub.9 =-24.0030 T.sub.5 =0.800 1.620 60.3 R.sub.10 =-19.1008 S.sub.5 =06 R.sub.11 =19.1008 T.sub.6 =3.556 1.785 25.7 R.sub.12 =-59.9948 S.sub.6=38.3210 at W/A 2.7508 at T/P 17.1018 at MID7 R.sub.13 =53.9750 T.sub.7 =0.800 1.805 25.4 R.sub.14 =-21.3106 S.sub.7 =08 R.sub.15 =21.3106 T.sub.8 =5.121 1.640 60.2 R.sub.16 =31.6230 R.sub.16 =31.6230 S.sub.8 =.10169 R.sub.17 =23.2664 T.sub.9 =3.150 1.691 54.8 R.sub.18 =-101.5237 S.sub.9=1.7348 at W/A 11.6103 at T/P 6.6573 at MID10 R.sub.19 =-45.5168 T.sub.10 =0.711 1.691 54.8 R.sub.20 =-12.8016 S.sub.10 =2.275811 R.sub.21 =14.6431 T.sub.11 =2.091 1.805 25.4 R.sub.22 =-27.4320 S.sub.11 =10.668 STOP S.sub.12 =3.55612 R.sub.23 =17.2720 T.sub.12 =3.226 1.774 44.8 R.sub.24 =30.4292 S.sub.13 =1.676413 R.sub.25 =-19.3040 T.sub.13 =1.711 1.805 25.4 R.sub.26 =-17.1196 S.sub.14 =.889014 R.sub.27 =173.1519 T.sub.14 =4.496 1.805 25.4 R.sub.28 =-16.5100 S.sub.15 =015 R.sub.29 =16.5100 T.sub.15 =2.794 1.744 44.8 R.sub.30 =21.8034 S.sub.16 =.127016 R.sub.31=14.9758 T.sub.16 =3.023 1.734 51.5 R.sub.32 =-424.1817 S.sub.17 =11.277 BFL______________________________________
- wherein the first column lists the lens elements numerically starting at the ray entrance side of the system; the second column lists the respective base radii R.sub.1 to R.sub.32 ; the third column lists the thicknesses T.sub.1 - T.sub.16 of the respective elements; the fourth column lists the axial spacings S.sub.1 to S.sub.17 between the respective elements, and stop, and the image plane; and the fifth and sixth columns respectively list the index of refraction for the Sodium D line N.sub.D and the dispersive index V of the optical materials of the respective elements.
- 2. An optical system for a variable focal length lens of large effective aperture, which is focusable over an extended range, having substantially the following specification:
- TABLE 2__________________________________________________________________________SYSTEM EFL HALF ANGLE OF FIELDat W/A = 7.61mm ( .2997 in.) 25.35.degree.at MID = 56.98mm (2.2433 in.) 3.31.degree.at MID = 25.67mm (1.0105 in.) 7.58.degree.LENS RADII (mm.) THICKNESS (mm.) SPACINGS (mm) N.sub.D V__________________________________________________________________________1 R.sub.1 T.sub.1 = 1.6510 1.755 27.6 R.sub.2 =- 51.1988 S.sub.1 = 02 R.sub.3 T.sub.2 = 12.7000 1.620 60.4 R.sub.4 = 152.7810 S.sub.2 = .10163 R.sub.5 T.sub.3 = 7.7978 1.651 55.9 R.sub.6 =-139.7000 S.sub.3 = 4.2875 at W/A 29.5554 at T/P 22.3952 at MID4 R.sub.7 T.sub.4 = .8128 1.639 55.4 R.sub.8 =- 16.5100 S.sub.4 = 6.62945 R.sub.9 =- 24.0030 T.sub.5 = .8382 1.620 60.4 R.sub.10 =- 19.1008 S.sub.5 = 06 R.sub.11 = 19.1008 T.sub.6 = 3.5052 1.785 25.8 R.sub.12 =- 59.9948 S.sub.6 = 38.4048 at W/A 2.5857 at T/P 14.2570 at MID7 R.sub.13 = 58.9280 T.sub.7 = .8890 1.805 25.4 R.sub.14 =- 21.7424 S.sub.7 = 08 R.sub.15 = 21.7424 T.sub.8 = 5.6388 1.641 60.1 R.sub.16 = 30.2260 S.sub.8 = .10169 R.sub.17 = 22.7203 T.sub.9 = 3.1496 1.691 54.9 R.sub.18 = 93.1672 s.sub.9 = 1.6002 at W/A 12.1514 at T/P 7.6403 at MID10 R.sub.19 =- 45.5168 T.sub.10 = .7112 1.691 54.9 R.sub.20 =- 12.8016 S.sub.10 = 2.235211 R.sub.21 = 16.6431 T.sub.11 = 2.0574 1.805 25.4 R.sub.22 =- 27.0256 S.sub.11 = 11.0490 STOP S.sub.12 = 3.556012 R.sub.23 = 18.0848 T.sub.12 = 3.6576 1.744 44.8 R.sub.24 = 32.8168 S.sub.13 = 1.600213 R.sub.25 =- 21.9202 T.sub.13 = .7112 1.805 25.4 R.sub.26 =- 16.8656 S.sub.14 = .733614 R.sub.27 = 61.2140 T.sub.14 - 4.3180 1.805 25.4 R.sub.28 = - 14.5288 S.sub.15 = 015 R.sub.29 = 14.5288 T.sub.15 = 3.2512 1.744 44.8 R.sub.30 = 26.9494 S.sub.16 = .127016 R.sub.31 = 14.7320 T.sub.16 = 2.5654 1.734 51.7 R.sub.32 =-463.9259 S.sub.17 = 1.4529__________________________________________________________________________
- wherein the first column lists the lens elements numerically starting at the ray entrance side of the system; the second column lists the respective base radii R.sub.1 to R.sub.32 ; the third column lists the thicknesses T.sub.1 - T.sub.16 of the respective elements; the fourth column lists the axial spacings S.sub.1 to S.sub.17 between the respective elements, and stop, and the image plane; and the fifth and sixth columns respectively list the index of refraction for the Sodium D line N.sub.D and the dispersive index V of the optical materials of the respective elements.
Parent Case Info
This application is a continuation-in-part of Ser. No. 625,965 filed Oct. 28, 1975, and now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3773402 |
Gela et al. |
Nov 1973 |
|
3784285 |
Watanabe |
Jan 1974 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
625965 |
Oct 1975 |
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