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US 2012/0057071 A1Published application
Imaging device and mobile information terminal
AssigneeFUJIFILM Corporation
InventorsKazuya YONEYAMA, Yoshikazu SHINOHARA, Takayuki NODA, Tatsuyuki OGINO, Ryoko TOMIOKA
Life of this patent
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Abstract
An imaging device with a short length and small aberration is provided. A total length D of an image-forming optical system is less than 3.6 mm. A maximum incidence angle of a principle ray on an image forming plane exceeds 33°. Conditions f/fL<−1.50 or f/fL<−0.9, and D/f<1.10 are satisfied where f denotes a focal length of the entire image-forming optical system and fL denotes a focal length of a last lens.
Claims15
An imaging device comprising:
- an image-forming optical system composed of two or more lenses;
- and
- a solid state image sensor for capturing an image formed on an image forming plane of the image-forming optical system;
- wherein, a distance between a forwardmost plane and the image forming plane of the image-forming optical system is less than 3.6 mm, and a maximum incidence angle of a principal ray incident on the image forming plane exceeds 33°.
1 more element
An imaging device comprising:
- an image-forming optical system composed of two or more lenses;
- and
- a solid state image sensor for capturing an image formed on an image forming plane of the image-forming optical system;
- wherein, a distance D between a forwardmost plane and the image forming plane of the image-forming optical system is less than 3.6 mm, and D/f<1.10 is satisfied where f denotes a focal length of the entire image-forming optical system.
1 more element
An imaging device comprising:
- an image-forming optical system composed of two or more lenses;
- and
- a solid state image sensor for capturing an image formed on an image forming plane of the image-forming optical system;
- wherein, f/fL <−1.5 and D/f<1.10 are satisfied where D denotes a distance between a forwardmost plane and the image forming plane of the image-forming optical system, and f denotes a focal length of the entire image-forming optical system, and fL denotes a focal length of a last lens.
1 more element
Dependencies are inferred from the claim text.