Digicame-info found patents for Sony 150-400mm f/4 OSS and 70-200mm f/2.8 lenses.
- Applicant: Sony Group Corporation
Publication number: P2023039817
Application number: P 2021147121
Publication date: 2023-03-22Title
of invention: Zoom lens and imaging device - An object of the present invention is to make it possible to satisfactorily correct various aberrations while being lightweight.
- In order to improve the image quality of a telephoto zoom lens, it is important to correct various aberrations such as axial chromatic aberration, lateral chromatic aberration, spherical aberration, and curvature of field due to zooming. .
- In the first or second zoom lens or the first or second imaging device according to an embodiment of the present disclosure, each lens is configured so that it is possible to satisfactorily correct various aberrations while being lightweight. Optimization of group composition is attempted.
Example 1 (150-400mm F4 OSS) *L53 and L54 in the diagram are the anti-vibration lens group
focal length 154.53 238.80 387.86
F number 4.12 4.12 4.12
Total angle of view 15.94 10.36 6.39
Image height 21.64 21.65 21.64
Overall length 339.98 339.98 339.98
Example 2 (70-200mm F2.8)
Focal length 72.14 120.82 193.95
F number 2.88 2.88 2.88
Total angle of view 33.40 20.30 12.73
Image height 21.64 21.63 21.63
Overall length 215.07 215.07 215.07
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