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US 8,718,458 B2Granted
Imaging unit
AssigneeHoya Corporation
InventorIsao Okuda
Life of this patent
Estimating the term…
Abstract
An imaging unit includes an incident-side reflecting surface provided in a casing and reflects object-emanating light, entering the casing in a thickness direction thereof, along a lengthwise direction of the casing; a movable lens group movable along the lengthwise direction of the casing; an exit-side reflecting surface reflecting the light in the thickness direction of the casing; an image sensor provided in the casing and receiving the light from the exit-side reflecting surface; and a plurality of light shield frames provided in the casing between the movable lens group and the exit-side reflecting surface, the light shield frames being arranged in the lengthwise direction of the casing and moving in the lengthwise direction of the casing when the movable lens group performs a power-varying operation.
Claims9
An imaging unit comprising:
- an incident-side reflecting surface provided in a casing and that reflects light emanating from an object and entering said casing from the outside of said casing in a thickness direction of said casing, so that said light reflected by said incident-side reflecting surface travels along a lengthwise direction of said casing that is orthogonal to said thickness direction of said casing;
- a movable lens group, comprising a plurality of relatively movable lens groups, provided in said casing as a power-varying lens group and allows said light, which is reflected by said incident-side reflecting surface, to pass through said movable lens group, said movable lens group being movable along said lengthwise direction of said casing, one of the plurality of lens groups being positioned closest to an image;
- an exit-side reflecting surface provided in said casing and that reflects said light, which is incident on said exit-side reflecting surface after passing through said movable lens group, so that said light travels from said exit-side reflecting surface in said thickness direction of said casing;
- an image sensor provided in said casing and that receives said light that has traveled from said exit-side reflecting surface;
- and
- a plurality of light shield frames provided in said casing between said one of the lens groups of said plurality of relatively movable lens groups of said movable lens group and said exit-side reflecting surface, said plurality of light shield frames being arranged in said lengthwise direction of said casing and moving in said lengthwise direction of said casing when said movable lens group performs a power-varying operation.
3 more elements
An imaging unit comprising:
- an incident-side reflecting surface provided in a casing and that reflects light emanating from an object and entering said casing from the outside of said casing in a thickness direction of said casing, so that said light reflected by said incident-side reflecting surface travels along a lengthwise direction of said casing that is orthogonal to said thickness direction of said casing;
- a movable lens group provided in said casing as a power-varying lens group and allows said light, which is reflected by said incident-side reflecting surface, to pass through said movable lens group, said movable lens group being movable along said lengthwise direction of said casing;
- an exit-side reflecting surface provided in said casing that reflects said light, which is incident on said exit-side reflecting surface after passing through said movable lens group, so that said light travels from said exit-side reflecting surface and in said thickness direction of said casing;
- an image sensor provided in said casing and that receives said light that has traveled from said exit-side reflecting surface;
- and
- a plurality of light shield frames in said casing between said movable lens group and said exit-side reflecting surface, said plurality of light shield frames being arranged in said lengthwise direction of said casing and moving in said lengthwise direction of said casing when said movable lens group performs a power-varying operation,
- said movable lens group comprising:
- a first movable lens group;
- and
- a second movable lens group positioned closer to said exit-side reflecting surface than said first movable lens group, each of said plurality of light shield frames being positioned closer to said exit side reflecting surface than said second movable lens group,
- a first light shield frame, of said plurality of light shield frames, is supported by a first movable lens frame that supports said first movable lens group, the first light shield frame being supported by a rod fixed to the first movable lens frame;
- and
- a second light shield frame, of said plurality of light shield frames, is supported by a second movable lens frame that supports said second movable lens group, the second light shield frame being supported by an other rod fixed to the second movable lens frame
- each of the first and second movable lens frames being distinct from each of the rods.
11 more elements
Dependencies are inferred from the claim text.