Surveillance Camera Lens Mounting Unit Horizontality Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mega-pixel resolution surveillance cameras experience image blurring due to tilting of the lens mounting unit, as the horizontality between the lens mounting surface and the imaging surface is not precisely maintained, leading to partial image focus issues despite correct back focal length focus.
Innovation Solution
The design incorporates a lens mounting unit with a first and second guide unit, a front cover with protrusions, and an elastic body, featuring screw threads and a control unit to maintain precise horizontality and prevent tilting, allowing for various back focus lengths and focal length control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a mega-pixel resolution imaging device is used, then image quality and resolution are improved, but image blurring occurs due to tilting of the lens mounting unit
Solution Approach 1:
The patent changes the structural parameters of the lens mounting unit by introducing guide units with specific geometries (first guide unit with inclined surface, second guide unit with perpendicular surface) that physically constrain the mounting surface to maintain precise horizontality, thereby preventing image blurring while preserving mega-pixel resolution quality
Solution Approach 2:
The guide units act as intermediary components between the lens mounting unit and the housing, mediating the connection to ensure proper alignment and horizontality of the lens mounting surface, thus preventing tilting-induced blurring in mega-pixel cameras
2Ease of manufacture
If the lens mounting unit is simplified for ease of manufacture, then manufacturing cost and complexity are reduced, but precision horizontality between lens mounting surface and imaging surface cannot be maintained
Solution Approach 1:
The lens mounting unit is segmented into distinct functional components: a first guide unit with an inclined surface for positioning, a second guide unit with a perpendicular surface for horizontal constraint, and a lens mounting portion. This segmentation allows each component to be manufactured separately with standard tolerances while achieving precise overall alignment through their geometric relationships
Solution Approach 2:
The guide units are designed with pre-determined geometric relationships (inclined surface angle, perpendicular surface orientation) that are established during manufacturing. These preliminary geometric configurations ensure that when assembled, the lens mounting surface automatically achieves the required horizontality without requiring post-assembly adjustment
Data Source
AI summary
Provided is a surveillance camera. The surveillance camera includes a main body casing; a front cover that forms a camera housing by being combined with the main body casing; a first protrusion unit that protrudes frontward of the front cover from a front surface of the front cover; a second protrusion unit that is formed on an outer edge of the first protrusion unit by being separated from the first protrusion unit; and a lens mounting unit that combines with the front cover, wherein the lens mounting unit comprises a first guide unit that protrudes toward the front cover and contacts the first protrusion unit and a second guide unit that contacts the second protrusion unit. Accordingly, tilting of the lens mounting unit is effectively prevented.