Rotatable Dome Camera Cover for Visual Range Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional dome cameras have a fixed semispherical dome cover, limiting the adjustable range of their visual direction, which cannot be adjusted to accommodate varying installation conditions such as ceiling installations requiring upward angles.
Innovation Solution
A dome camera design featuring a base with a tilted cover-support surface, allowing a rotatable dome cover formed by joining a semispherical and partial spherical cover, enabling adjustment of the visual range by rotating the dome cover around a central axis, independent of the camera's pan and tilt mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a semispherical dome cover is used, then the dome cover can be molded easily and manufactured at low cost, but the visual range of the camera is limited to a semispherical range with the vertex direction being the center
Solution Approach 1:
The dome cover is divided into two separate parts: a semispherical cover and a partial spherical cover. The semispherical cover maintains the simple molded structure for easy manufacturing, while the partial spherical cover provides the additional spherical portion needed to extend the visual range. This segmentation allows each part to be manufactured independently using standard molding processes while achieving the enhanced functionality when assembled.
Solution Approach 2:
The dome cover is made rotatable on the base around a rotational axis passing through the spherical center, transforming it from a fixed structure to a dynamic one. This rotatability enables the dome cover to adjust its orientation and accommodate different visual range requirements while maintaining the same physical structure. The rotational capability allows the camera to survey a wider area by rotating the dome cover rather than changing the dome cover's shape.
2Stability of the object's composition
If the dome cover is fixed to the base, then the structure is simple and stable, but the direction of the visual range cannot be adjusted according to installation conditions
Solution Approach 1:
The dome cover is designed to be rotatable on the base around a rotational axis passing through the spherical center, transforming it from a fixed structure to a dynamic one. This rotatability enables the dome cover to adjust its orientation and accommodate different visual range requirements while maintaining the same physical structure. The rotational capability allows the camera to survey a wider area by rotating the dome cover rather than changing the dome cover's shape.
Solution Approach 2:
The rotatable dome cover structure serves multiple functions: it provides structural stability when fixed, enables visual range adjustment when rotated, and maintains optical axis alignment during rotation. This multi-functionality allows the same structural design to address both stability requirements and adaptability requirements depending on the operational needs.
3Adaptability or versatility
If a rotatable dome cover is implemented, then the visual range direction can be adjusted, but the device complexity increases
Solution Approach 1:
The dome cover is divided into two separate parts: a semispherical cover and a partial spherical cover. The semispherical cover maintains the simple molded structure for easy manufacturing, while the partial spherical cover provides the additional spherical portion needed to extend the visual range. This segmentation allows each part to be manufactured independently using standard molding processes while achieving the enhanced functionality when assembled.
Solution Approach 2:
The patent adds rotational freedom around an axis passing through the spherical center, transforming the dome cover from a two-dimensional fixed structure to a three-dimensional rotatable component. This dimensional addition enables visual range adjustment without requiring complex mechanical structures, as the rotation occurs naturally around the spherical center axis.
Data Source
AI summary
A dome camera (1A) includes a camera (2), a base (4A), and a dome cover (5). The base (4A) has a reference surface (P1) and a cover-support surface (P2) tilted relative to the reference surface (P1). A semispherical cover (9) having a semispherical shape and a partial spherical cover (10) having a partial spherical shape are joined together at a joint surface (P3). A cover-supported surface (P4) of the partial spherical cover (10) is supported on the cover-support surface (P2) of the base. The camera (2) is placed so that the optical axis (X1) thereof passes through the spherical center (C). The dome cover (5) is supported so as to be rotatable on the cover-support surface (P2) around a rotational axis (X2) passing through the spherical center (C). Thereby, the direction of the visual range of the camera can be adjusted.