Filter device and imaging apparatus
AssigneeSony Group Corporation
InventorsTAKUMA TANAE, OSAMU IIDA, AKIHIRO OZAKI
Life of this patent
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Abstract
A filter device includes: a first disk including a first neutral density filter; a second disk that is disposed to face the first disk in an optical axis direction, and includes a second neutral density filter; and a motor that gives a driving force to the first disk to rotate the first disk. In the filter device, an interlocking mechanism that enables the second disk to rotate with rotation of the first disk is provided. In this configuration, the first disk and the second disk are rotated by a single motor, and the filter device and an imaging apparatus can be made smaller in size with the reduced number of components and the simplified structure.
Claims9
A filter device comprising:
- a first disk including a first neutral density filter;
- a second disk that is disposed to face the first disk in an optical axis direction, and includes a second neutral density filter;
- and
- a motor that gives a driving force to the first disk to rotate the first disk, wherein
- an interlocking mechanism that enables the second disk to rotate with rotation of the first disk is provided.
An imaging apparatus comprising:
- an imaging element that converts an optical image into an electrical signal;
- and a filter device that performs luminance adjustment,
- the filter device including:
- a first disk including a first neutral density filter;
- a second disk that is disposed to face the first disk in an optical axis direction, and includes a second neutral density filter;
- and
- a motor that gives a driving force to the first disk to rotate the first disk, in which
- an interlocking mechanism that enables the second disk to rotate with rotation of the first disk is provided.
Dependencies are inferred from the claim text.