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US 12,742,991 B2Granted
Dimming device and dimming apparatus
AssigneeGuangyi Intelligent Tech (Suzhou) Co., Ltd.
InventorWeishu Wang
Life of this patent
Estimating the term…
Abstract
A dimming device and a dimming apparatus. The dimming device includes a dimming film. The dimming film includes a first area and a second area, and the second area is arranged surrounding a circumference of the first area. The dimming film includes a preset point O and a preset division line M, where the preset division line M divides the dimming film into a first part and a second part, and the preset point O is located on the preset division line M. The first part satisfies an inequality of A1A2≤OB1−L1, and the second part satisfies an inequality of C1C2≤OD1−L2.
Claims20
A dimming device, comprising:
- a dimming film, comprising a first area and a second area, the second area being arranged surrounding a circumference of the first area;
- wherein the dimming film comprises a preset point O and a preset division line M, the preset division line M divides the dimming film into a first part and a second part, and the preset point O is located on the preset division line M;
- the first part satisfies an inequality of A1A2≤OB1−L1;
- wherein A1 represents a point on an outer contour of the second area that is farthest from the preset point O in the first part, A2 represents an intersection point formed by a line segment OA1 intersected with an outer contour of the first area, B1 represents a point on the outer contour of the second area that is closest to the preset point O in the first part, and L1 represents a maximum vertical distance between the outer contour of the first area and the preset division line M in the first part;
- the second part satisfies an inequality of C1C2≤OD1−L2;
- wherein C1 represents a point on the outer contour of the second area that is farthest from the preset point O in the second part, C2 represents an intersection point formed by a line segment OC1 intersected with the outer contour of the first area, D1 represents a point on the outer contour of the second area that is closest to the preset point O in the second part, and L2 represents a maximum vertical distance between the outer contour of the first area and the preset division line M in the second part.
3 more elements
A dimming apparatus, comprising:
- a dimming device, comprising:
- a dimming film, comprising a first area and a second area, the second area being arranged surrounding a circumference of the first area;
- wherein the dimming film comprises a preset point O and a preset division line M, the preset division line M divides the dimming film into a first part and a second part, and the preset point O is located on the preset division line M;
- the first part satisfies an inequality of A1A2≤OB1−L1;
- wherein A1 represents a point on an outer contour of the second area that is farthest from the preset point O in the first part, A2 represents an intersection point formed by a line segment OA1 intersected with an outer contour of the first area, B1 represents a point on the outer contour of the second area that is closest to the preset point O in the first part, and L1 represents a maximum vertical distance between the outer contour of the first area and the preset division line M in the first part;
- the second part satisfies an inequality of C1C2≤OD1−L2;
- wherein C1 represents a point on the outer contour of the second area that is farthest from the preset point O in the second part, C2 represents an intersection point formed by a line segment OC1 intersected with the outer contour of the first area, D1 represents a point on the outer contour of the second area that is closest to the preset point O in the second part, and L2 represents a maximum vertical distance between the outer contour of the first area and the preset division line M in the second part.
4 more elements
Dependencies are inferred from the claim text.