发明名称 |
LENS ARRAY, IMAGING APPARATUS, AND IMAGE READING APPARATUS |
摘要 |
A lens array including: a plurality of imaging portions arrayed in a first direction; wherein each of the plurality of imaging portions includes a first optical system configured to form an intermediate image of an object and a second optical system configured to re-form the intermediate image of the object in a first cross section parallel to the first direction and a direction of optical axes of the imaging portions, and wherein in each of the plurality of imaging portions, an optical flux from an object height at which a light available efficiency becomes 90% is restricted by at least one of a first aperture surface of the first optical system and a second aperture surface of the second optical system, and the optical flux from an object height at which the light available efficiency becomes 10% is restricted by the aperture surface which restricts the optical flux from the object height at which the light available efficiency becomes 90%. |
申请公布号 |
US2014185109(A1) |
申请公布日期 |
2014.07.03 |
申请号 |
US201314139652 |
申请日期 |
2013.12.23 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
Miyajima Yu |
分类号 |
G02B3/00 |
主分类号 |
G02B3/00 |
代理机构 |
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代理人 |
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主权项 |
1. A lens array comprising:
a plurality of imaging portions arrayed in a first direction; wherein each of the plurality of imaging portions includes a first optical system configured to form an intermediate image of an object and a second optical system configured to re-form the intermediate image of the object in a first cross section parallel to the first direction and a direction of optical axes of the imaging portions, and wherein in each of the plurality of imaging portions, an optical flux from an object height at which a light available efficiency becomes 90% is restricted by at least one of a first aperture surface of the first optical system and a second aperture surface of the second optical system, and the optical flux from an object height at which the light available efficiency becomes 10% is restricted by the aperture surface which restricts the optical flux from the object height at which the light available efficiency becomes 90%. |
地址 |
Tokyo JP |