Claims
- 1. A wide-angle zoom lens system comprising a front lens group consisting of a first negative lens component having a surface with a small radius of curvature on the image side, a second negative lens component and a third positive lens component, and a rear lens group consisting of a fourth positive lens component, a fifth positive lens component having a surface with a small radius of curvature on the object side, a sixth negative lens component having a surface with a small radius of curvature on the image side and a seventh positive lens component, said zoom lens system being so adapted as to perform the zooming operation by varying the airspace reserved between said front lens group and rear lens group, and having the following numerical data:
- ______________________________________r.sub.1 = 42.3913d.sub.1 = 2.090 n.sub.1 = 1.63854 .nu..sub.1 = 55.4r.sub.2 = 23.5091d.sub.2 = 8.100r.sub.3 = 442.1958d.sub.3 = 1.990 n.sub.2 = 1.63854 .nu..sub.2 = 55.4r.sub.4 = 34.7672d.sub.4 = 4.479r.sub.5 = 32.2910d.sub.5 = 4.280 n.sub.3 = 1.68893 .nu..sub.3 = 31.1r.sub.6 = 73.6646d.sub.6 = 36.741 .about. 0.550r.sub.7 = 41.0666d.sub.7 = 3.380 n.sub.4 = 1.65160 .nu..sub.4 = 58.7r.sub.8 = -186.3587d.sub.8 = 0.150r.sub.9 = 24.5146d.sub.9 = 3.590 n.sub.5 = 1.65830 .nu..sub.5 = 57.3r.sub.10 = 146.4997d.sub.10 = 4.207r.sub.11 = -86.5398d.sub.11 = 4.147 n.sub.6 = 1.80518 .nu..sub.6 = 25.4r.sub.12 = 20.7628d.sub.12 = 5.332r.sub.13 = 246.8300d.sub.13 = 3.443 n.sub.7 = 1.63980 .nu..sub.7 = 34.5r.sub.14 = -30.4106f = 36.0 .about. 68.5f.sub.M = -64.742f.sub.1 = -86.381 .vertline.f.sub.1 /f.sub.M .vertline. = 1.334f.sub.2 = -59.207 .vertline.f.sub.2 /f.sub.M .vertline. = 0.914f.sub.3 = 80.074 .vertline.f.sub.3 /f.sub.M .vertline. = 1.237r.sub.9 /f.sub.w = 0.681r.sub.12 /f.sub.w = 0.578r.sub.7 /r.sub.9 = 1.675f.sub.u = 42.415, f.sub.4 = 51.948, f.sub.5 = 44.207f.sub.7 = 42.524, f.sub.45 = 24.238, f.sub.5 /f.sub.4 = 0.851f.sub.45 /f.sub. 7 = 0.570, f.sub.7 /f.sub.u = 1.003, r.sub.1 /f.sub.w = 1.178r.sub.4 /f.sub.w = 0.966, r.sub.5 /f.sub.w = 0.897, d.sub.4 /f.sub.w = 0.124(d.sub.10 + d.sub.12)/f.sub.w = 0.265______________________________________
- wherein the reference symbols r.sub.1 through r.sub.14 represent radii of curvature on the surfaces of the respective lens elements, the reference symbols d.sub.1 through d.sub.13 designate thicknesses of the respective lens elements and airspaces reserved therebetween, the reference symbols n.sub.1 through n.sub.7 denote refractive indices of the respective lens elements, the reference symbols .nu..sub.1 through .nu..sub.7 represent Abbe's numbers of the respective lens elements, the reference symbol f designates focal length of the zoom lens system as a whole, the reference symbol f.sub.m represents focal length of said front lens group, and the reference symbols f.sub.1, f.sub.2 and f.sub.3 designate focal lengths of said first, second and third lens components respectively.
- 2. A wide-angle zoom lens system comprising a front lens group consisting of a first negative lens component having a surface with a small radius of curvature on the image side, a second negative lens component and a third positive lens component, and a rear lens group consisting of a fourth positive lens component, a fifth positive lens component having a surface with a small radius of curvature on the object side, a sixth negative lens component having a surface with a small radius of curvature on the image side and a seventh positive lens component, said zoom lens system being so adapted as to perform the zooming operation by varying the airspace reserved between said front lens group and rear lens group, and having the following numerical data:
- ______________________________________r.sub.1 = 41.6846 d.sub.1 = 2.1 n.sub.1 = 1.63854 .nu..sub.1 = 55.4r.sub.2 = 22.5467 d.sub.2 = 8.424r.sub.3 = -428.99 d.sub.3 = 2 n.sub.2 = 1.63854 .nu..sub.2 = 55.4r.sub.4 = 49.2969 d.sub.4 = 4.039r.sub.5 = 35.6905 d.sub.5 = 4.5 n.sub.3 = 1.72151 .nu..sub.3 = 29.2r.sub.6 = 75.984 d.sub.6 = 36.36.about.0.809r.sub.7 = 36.7093 d.sub.7 = 3.858 n.sub.4 = 1.6516 .nu..sub.4 = 58.7r.sub.8 = -142.8056 d.sub.8 = 0.374r.sub.9 = 23.8535 d.sub.9 = 3.431 n.sub.5 = 1.6516 .nu..sub.5 = 58.7r.sub.10 = 74.4075 d.sub.10 = 3.666r.sub.11 = -158.9446 d.sub.11 = 6.245 n.sub.6 = 1.80518 .nu..sub.6 = 25.4r.sub.12 = 19.0457 d.sub.12 = 4.813r.sub.13 = 79.6154 d.sub.13 = 4.503 n.sub.7 = 1.63636 .nu..sub.7 = 35.4r.sub.14 = -41.3063f.sub. = 36.0.about.68.5f.sub.M = -65.0f.sub.1 = -80.344 .vertline.f.sub.1 /f.sub.M .vertline. = 1.236f.sub.2 = -69.133 .vertline.f.sub.2 /f.sub.M .vertline. = 1.064f.sub.3 = 89.288 .vertline.f.sub.3 /f.sub.M .vertline. = 1.374r.sub.9 /f.sub.w = 0.663r.sub.12 /f.sub.w = 0.529r.sub.7 /r.sub.9 = 1.539f.sub.u = 41.498, f.sub.4 = 45.200, f.sub.5 = 52.476f.sub.7 = 43.365, f.sub.45 = 24.609, f.sub.5 /f.sub.4 = 1.163f.sub.45 /f.sub.7 = 0.568, f.sub.7 /f.sub.u = 1.045, r.sub.1 /f.sub.w = 1.158r.sub.4 /f.sub.w = 1.369, r.sub.5 /f.sub.w = 0.991, d.sub.4 /f.sub.w = 0.112(d.sub.10 + d.sub.12)/f.sub.w = 0.236______________________________________
- wherein the reference symbols r.sub.1 through r.sub.14 represent radii of curvature on the surfaces of the respective lens elements, the reference symbols d.sub.1 through d.sub.13 designate thicknesses of the respective lens elements and airspaces reserved therebetween, the reference symbols n.sub.1 through n.sub.7 denote refractive indices of the respective lens elements, the reference symbols .nu..sub.1 through .nu..sub.7 represent Abbe's numbers of the respective lens elements, the reference symbol f designates focal length of the zoom lens system as a whole, the reference symbol f.sub.M represents focal length of said front lens group, and the reference symbols f.sub.1, f.sub.2 and f.sub.3 designate focal lengths of said first, second and third lens components respectively.
- 3. A wide-angle zoom lens system comprising a front lens group consisting of a first negative lens component having a surface with a small radius of curvature on the image side, a second negative lens component and a third positive lens component, and a rear lens group consisting of a fourth positive lens component, a fifth positive lens component having a surface with a small radius of curvature on the object side, a sixth negative lens component having a surface with a small radius of curvature on the image side and a seventh positive lens component, said zoom lens system being so adapted as to perform the zooming operation by varying the airspace reserved between said front lens group and rear lens group, and having the following numerical data:
- ______________________________________r.sub.1 = 40.7425 d.sub.1 = 2.04 n.sub.1 = 1.63854 .nu..sub.1 = 55.4r.sub.2 = 21.204 d.sub.2 = 8.035r.sub.3 = -420.9044 d.sub.3 = 1.94 n.sub.2 = 1.63854 .nu..sub.2 = 55.4r.sub.4 = 46.1762 d.sub.4 = 3.921r.sub.5 = 34.6606 d.sub.5 = 4.17 n.sub.3 = 1.72342 .nu..sub.3 = 38.0r.sub.6 = 84.0243 d.sub.6 = 36.249.about.1.792r.sub.7 = 47.5549 d.sub.7 = 6.345 n.sub.4 = 1.6583 .nu..sub.4 = 53.4r.sub.8 = -86.9323 d.sub.8 = 1.38r.sub.9 = 24.9887 d.sub.9 = 3.521 n.sub.5 = 1.6583 .nu..sub. 5 = 53.4r.sub.10 = 97.9338 d.sub.10 = 3.835r.sub.11 = -77.1075 d.sub.11 = 6.447 n.sub.6 = 1.80518 .nu..sub.6 = 25.4r.sub.12 = 23.2424 d.sub.12 = 3.108r.sub.13 = -693.5659 d.sub.13 = 2.845 n.sub.7 = 1.64769 .nu..sub.7 = 33.8r.sub.14 = -28.6171f = 36.0.about.68.5f.sub.M = -63.0f.sub.1 = -72.182 .vertline.f.sub.1 /f.sub.M .vertline. = 1.146f.sub.2 = -65.061 .vertline.f.sub.2 /f.sub.M .vertline. = 1.033f.sub.3 = 78.761 .vertline.f.sub.3 /f.sub.M .vertline. = 1.250r.sub.9 /f.sub.w = 0.694r.sub.12 /f.sub.w = 0.646r.sub.7 /r.sub.9 = 1.903f.sub.u = 41.500, f.sub.4 = 47.586, f.sub.5 = 50.005f.sub.7 = 46.007, f.sub.45 = 25.206, f.sub.5 /f.sub.4 = 1.051f.sub.45 /f.sub.7 = 0.548, f.sub.7 /f.sub.u = 1.109, r.sub.1 /f.sub.w = 1.132r.sub.4 /f.sub.w = 1.283, r.sub.5 /f.sub.w + 0.963, d.sub.4 /f.sub.4 = 0.109(d.sub.10 + d.sub.12)/f.sub.w = 0.193______________________________________
- wherein the reference symbols r.sub.1 through r.sub.14 represent radii of curvature on the surfaces of the respective lens elements, the reference symbols d.sub.1 through d.sub.13 designate thicknesses of the respective lens elements and airspaces reserved therebetween, the reference symbols n.sub.1 through n.sub.7 denote refractive indices of the respective lens elements, the reference symbols .nu..sub.1 through .nu..sub.7 represent Abbe's numbers of the respective lens elements, the reference symbol f designates focal length of the zoom lens system as a whole, the reference symbol f.sub.M represents focal length of said front lens group, and the reference symbols f.sub.1, f.sub.2 and f.sub.3 designate focal lengths of said first, second and third lens components respectively.
- 4. A wide-angle zoom lens system comprising a front lens group consisting of a first negative lens component having a surface with a small radius of curvature on the image side, a second negative lens component and a third positive lens component, and a rear lens group consisting of a fourth positive lens component, a fifth positive lens component having a surface with a small radius of curvature on the object side, a sixth negative lens component having a surface with a small radius of curvature on the image side and a seventh positive lens component, said zoom lens system being so adapted as to perform the zooming operation by varying the airspace reserved between said front lens group and rear lens group, and having the following numerical data:
- ______________________________________r.sub.1 = 43.7155 d.sub.1 = 2.24 n.sub.1 = 1.6228 .nu..sub.1 = 57.1r.sub.2 = 23.0467 d.sub.2 = 8.014r.sub.3 = 583.0754 d.sub.3 = 2.14 n.sub.2 = 1.6228 .nu..sub.2 = 57.1r.sub.4 = 37.4587 d.sub.4 = 4.698r.sub.5 = 32.383 d.sub.5 = 4.23 n.sub.3 = 1.6398 .nu..sub.3 = 34.5r.sub.6 = 74.6168 d.sub.6 = 36.743.about.0.599r.sub.7 = 52.9675 d.sub.7 = 3.498 n.sub.4 = 1.691 .nu..sub.4 = 54.8r.sub.8 = -127.281 d.sub.8 = 0.202r.sub.9 = 23.6257 d.sub.9 = 3.652 n.sub.5 = 1.641 .nu..sub.5 = 56.9r.sub.10 = 10.5906 d.sub.10 = 5.191r.sub.11 = -81.9425 d.sub.11 = 2.989 n.sub.6 = 1.80518 .nu..sub.6 = 25.4r.sub.12 = 21.7018 d.sub.12 = 5.257r.sub.13 = 196.271 d.sub.13 = 4.241 n.sub.7 = 1.60342 .nu..sub.7 = 38.0r.sub.14 = -28.1096f = 36.0.about.68.0f.sub.M = -64.038f.sub.1 = -81.664 .vertline.f.sub.1 /f.sub.M .vertline. = 1.275f.sub.2 = -64.372 .vertline.f.sub.2 /f.sub.M .vertline. = 1.005f.sub.3 = 86.06 .vertline.f.sub.3 /f.sub.M .vertline. = 1.344r.sub.9 /f.sub.w = 0.656r.sub.12 /f.sub.w = 0.603r.sub.7 /r.sub.9 = 2.242f.sub.u = 43.177, f.sub.4 = 54.651, f.sub.5 = 46.632f.sub.7 = 41.040, f.sub.45 = 25.406, f.sub.5 /f.sub.4 = 0.855f.sub.45 /f.sub.7 = 0.619, f.sub.7 /f.sub.u = 0.951, r.sub.1 /f.sub.w = 1.214r.sub.4 /f.sub.w = 1.041, r.sub.5 /f.sub.w = 0.900 d.sub.4 /f.sub.w = 0.131(d.sub.10 + d.sub.12)/f.sub.w = 0.290______________________________________
- wherein the reference symbols r.sub.1 through r.sub.14 represent radii of curvature on the surfaces of the respective lens elements, the reference symbols d.sub.1 through d.sub.13 designate thicknesses of the respective lens elements and airspaces reserved therebetween, the reference symbols n.sub.1 through n.sub.7 denote refractive indices of the respective lens elements, the reference symbols .nu..sub.1 through .nu..sub.7 represent Abbe's numbers of the respective lens elements, the reference symbol f designates focal length of the zoom lens system as a whole, the reference symbol f.sub.M represents focal length of said front lens group, and the reference symbols f.sub.1, f.sub.2 and f.sub.3 designate focal lengths of said first, second and third lens components respectively.
- 5. A wide-angle zoom lens system comprising a front lens group consisting of a first negative lens component having a surface with a small radius of curvature on the image side, a second negative lens component and a third positive lens component, and a rear lens group consisting of a fourth positive lens component, a fifth positive lens component having a surface with a small radius of curvature on the object side, a sixth negative lens component having a surface with a small radius of curvature on the image side and a seventh positive lens component, said zoom lens system being so adapted as to perform the zooming operation by varying the airspace reserved between said front lens group and rear lens group, and having the following numerical data:
- ______________________________________r.sub.1 = 45.2632 d.sub.1 = 2.24 n.sub.1 = 1.6228 .nu..sub.1 = 57.1r.sub.2 = 23.6043 d.sub.2 = 8.01r.sub.3 = 373.8232 d.sub.3 = 2.14 n.sub.2 = 1.6228 .nu..sub.2 = 57.1r.sub.4 = 35.669 d.sub.4 = 4.763r.sub.5 = 32.1537 d.sub.5 = 4.23 n.sub.3 = 1.64769 .nu..sub.3 = 33.8r.sub.6 = 72.9747 d.sub.6 = 36.911.about.0.767r.sub.7 = 42.6462 d.sub.7 = 3.441 n.sub.4 = 1.6583 .nu..sub.4 = 53.4r.sub.8 = -155.773 d.sub.8 = 0.152r.sub.9 = 25.6664 d.sub.9 = 3.65 n.sub.5 = 1.6583 .nu..sub.5 = 53.4r.sub.10 = 161.4985 d.sub.10 = 4.267r.sub.11 = -75.8712 d.sub.11 = 4.204 n.sub.6 = 1.80518 .nu..sub.6 = 25.4r.sub.12 = 21.7747 d.sub.12 = 5.598r.sub.13 = 340.309 d.sub.13 = 3.877 n.sub.7 = 1.62606 .nu..sub.7 = 39.1r.sub.14 = -28.7092f = 36.0.about.68.0f.sub.M = -64.038f.sub.1 = -82.479 .vertline.f.sub.1 /f.sub.M .vertline. = 1.288f.sub.2 = -63.467 .vertline.f.sub.2 /f.sub.M .vertline. = 0.991f.sub.3 = 85.273 .vertline.f.sub.3 /f.sub.M .vertline. = 1.332r.sub.9 /f.sub.w = 0.713r.sub.12 /f.sub.w = 0.605r.sub.7 /r.sub.9 = 1.662f.sub.u = 43.178, f.sub.4 = 51.211, f.sub.5 = 45.867f.sub.7 = 42.461, f.sub.45 = 24.545, f.sub.5 /f.sub.4 = 0.896f.sub.45 /f.sub.7 = 0.578, f.sub.7 /f.sub.u = 0.983, r.sub.1 /f.sub.w = 1.257r.sub.4 /f.sub.w = 0.991, r.sub.5 /f.sub.w = 0.893, d.sub.4 /f.sub.w = 0.132(d.sub.10 + d.sub.12)/f.sub.w = 0.274______________________________________
- wherein the reference symbols r.sub.1 through r.sub.14 represent radii of curvature on the surfaces of the respective lens elements, the reference symbols d.sub.1 through d.sub.13 designate thicknesses of the respective lens elements and airspaces reserved therebetween, the reference symbols n.sub.1 through n.sub.7 denote refractive indices of the respective lens elements, the reference symbols .nu..sub.1 through .nu..sub.7 represent Abbe's numbers of the respective lens elements, the reference symbol f designates focal length of the zoom lens system as a whole, the reference symbol f.sub.M represents focal length of said front lens group, and the reference symbols f.sub.1, f.sub.2 and f.sub.3 designate focal lengths of said first, second and third lens components respectively.
- 6. A wide-angle zoom lens system comprising a front lens group consisting of a first negative lens component having a surface with a small radius of curvature on the image side, a second negative lens component and a third positive lens component, and a rear lens group consisting of a fourth positive lens component, a fifth positive lens component having a surface with a small radius of curvature on the object side, a sixth negative lens component having a surface with a small radius of curvature on the image side and a seventh positive lens component, said zoom lens system being so adapted as to perform the zooming operation by varying the airspace reserved between said front lens group and rear lens group, and having the following numerical data:
- ______________________________________r.sub.1 = 47.226 d.sub.1 = 2.1 n.sub.1 = 1.6228 .nu..sub.1 = 57.1r.sub.2 = 22.7022 d.sub.2 = 7.878r.sub.3 = -456.3736 d.sub.3 = 2 n.sub.2 = 1.6228 .nu..sub.2 = 57.1r.sub.4 = 40.3657 d.sub.4 = 3.944r.sub.5 = 35.5408 d.sub.5 = 4.17 n.sub.3 = 1.72342 .nu..sub.3 = 38.0r.sub.6 = 104.6907 d.sub.6 = 35.706.about.0.052r.sub.7 = 52.7644 d.sub.7 = 6.343 n.sub.4 = 1.6583 .nu..sub.4 = 57.3r.sub.8 = -102.0611 d.sub.8 = 2.009r.sub.9 = 26.2833 d.sub.9 = 3.63 n.sub.5 = 1.6583 .nu..sub.5 = 57.3r.sub.10 = 107.5007 d.sub.10 = 3.93r.sub.11 = -73.0658 d.sub.11 = 6.64 n.sub.6 = 1.80518 .nu..sub.6 = 25.4r.sub.12 = 25.2538 d.sub.12 = 3.394r.sub.13 = 318.6274 d.sub.13 = 3.282 n.sub.7 = 1.64760 .nu..sub.7 = 33.8r.sub.14 = -28.9424f = 36.0.about.68.5f.sub.M = -63.0f.sub.1 = -72.581 .vertline.f.sub.1 /f.sub.M .vertline. = 1.152f.sub.2 = -59.455 .vertline.f.sub.2 /f.sub.M .vertline. = 0.944f.sub.3 = 72.543 .vertline.f.sub.3 /f.sub.M .vertline. = 1.151r.sub.9 /f.sub.w = 0.73r.sub.12 /f.sub.w = 0.701r.sub.7 /r.sub.9 = 2.008f.sub.u = 42.941, f.sub.4 = 53.710, f.sub.5 = 51.925f.sub.7 = 41.117, f.sub.45 = 27.407, f.sub.5 /f.sub.4 = 0.967f.sub.45 /f.sub.7 = 0.667, f.sub.7 /f.sub.u = 0.958, r.sub.1 /f.sub.w = 1.312r.sub.4 /f.sub.w = 1.121, r.sub.5 /f.sub.w = 0.987, d.sub.4 /f.sub.w = 0.110(d.sub.10 + d.sub.12)/f.sub.w = 0.204______________________________________
- wherein the reference symbols r.sub.1 through r.sub.14 represent radii of curvature on the surfaces of the respective lens elements, the reference symbols d.sub.1 through d.sub.13 designate thicknesses of the respective lens elements and airspaces reserved therebetween, the reference symbols n.sub.1 through n.sub.7 denotes refractive indices of the respective lens elements, the reference symbols .nu..sub.1 through .nu..sub.7 represent Abbe's numbers of the respective lens elements, the reference symbol f designates focal length of the zoom lens system as a whole, the reference symbol f.sub.M represents focal length of said front lens group, and the reference symbols f.sub.1, f.sub.2 and f.sub.3 designate focal lengths of said first, second and third lens components respectively.
Priority Claims (1)
Number |
Date |
Country |
Kind |
54-119830 |
Sep 1979 |
JPX |
|
Parent Case Info
This is a continuation of application Ser. No. 187,448, filed Sept. 15, 1980 now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4074931 |
Okudaira |
Feb 1978 |
|
4323302 |
Kimura |
Apr 1982 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
187448 |
Sep 1980 |
|