Dual Magnification Mirror With LED Illumination And Pivotable Frame
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Solution Overview
Problem
Existing dual magnification mirrors lack a reliable internal illumination source that provides uniform lighting without the risk of electrical wire twisting and require a power cord, making them inconvenient for use in dimly lit environments and limited spaces.
Innovation Solution
A dual magnification mirror with back-to-back mirror plates of different magnification factors, powered by batteries within a base, featuring a ring-shaped LED illumination source and a pivotable frame design that ensures continuous rotation without electrical wire twisting, using insulated conductive leads and resilient pivot retention for secure electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a dual magnification mirror includes an internal illumination source, then illumination quality is improved, but the risk of electrical wire twisting and device complexity increase
Solution Approach 1:
The mirror frame is designed with continuous rotation capability around a vertical axis, allowing dynamic adjustment of mirror orientation. The electrical leads are routed through the rotation mechanism in a twist-proof configuration, enabling the frame to rotate freely without twisting or straining the electrical connections, thus maintaining both illumination functionality and mechanical reliability.
Solution Approach 2:
A pivot mechanism with integrated electrical contact serves as an intermediary between the rotating mirror frame and the stationary base. This pivot assembly maintains continuous electrical connection while allowing rotational movement, eliminating the need for long flexible wires that would twist and fail.
2Reliability
If a dual magnification mirror includes a power cord, then power supply reliability is improved, but ease of operation and adaptability worsen
Solution Approach 1:
The power supply system is extracted from the external environment (power cord) and integrated into the mirror structure itself. Batteries are housed within the base, providing self-contained power supply that eliminates the need for external electrical connections, thereby maintaining reliability while significantly improving portability and ease of operation.
Solution Approach 2:
The mirror becomes self-sufficient with its own power source integrated into the base structure. The battery-powered illumination system eliminates dependency on external power outlets, allowing the mirror to be used freely in various locations without requiring electrical connection, thus enhancing both reliability and operational flexibility.
3Adaptability or versatility
If the mirror frame is made continuously rotatable, then adaptability is improved, but device complexity increases
Solution Approach 1:
The rotation mechanism is segmented into simple, discrete components: a pivot pin, bearing cups, and resilient retention elements. This segmented design allows continuous rotation functionality to be achieved through basic mechanical elements rather than a complex integrated system, reducing overall device complexity while maintaining high adaptability.
Solution Approach 2:
The mirror frame incorporates a simple rotational joint that enables continuous rotation around a vertical axis. This dynamic element provides versatile orientation adjustment without requiring complex mechanisms, as the rotation is achieved through a straightforward pivot design that balances flexibility with mechanical simplicity.
4Illumination intensity
If the illumination source is positioned to illuminate both mirror plates equally, then illumination uniformity is improved, but manufacturing precision requirements increase
Solution Approach 1:
The illumination source is positioned asymmetrically relative to the two mirror plates, utilizing the reflective properties and geometric arrangement to achieve uniform illumination distribution. By strategically placing the light source and utilizing the back-to-back configuration of the mirrors, the design achieves balanced illumination without requiring precise symmetric positioning, thereby reducing manufacturing precision requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The mirror provides uniform and equally bright illumination for both magnification settings, allowing continuous rotation and eliminating the need for a power cord, enhancing usability in various grooming tasks and space-constrained environments.
Implementation Method 1
ring-shaped LED illumination source
Implementation Method 2
flexible routing of the insulated conductive leads
Implementation Method 3
resilient pivot retention for secure electrical connections
Data Source
AI summary
A mirror for facilitating appearance related functions includes a circular ring-shaped frame holding therein back-to-back reflective mirror plates having different magnification factors, e.g. 1× and 5×, each plate having a circular central imaging reflective area and an outer concentric light transmissive window area. Continuously rotatable pivot joints support the frame between opposed arms of a yoke protruding upwardly from a stanchion and base for placement on a table, or an arm and wall bracket for mounting on a wall, enabling the frame to be rotated to interchangeably orient 1× and 5× mirror plates in a forward facing use position. A ring-shaped, printed circuit board with circumferentially spaced apart light emitting diodes (LED's) protruding radially outwards of an outer circumferential edge of the board is located between inner facing surfaces of the mirror plates. Illumination of objects in front of the mirror plates is effected by direct LED rays emitted forwardly through the light transmissive windows, and intensified by indirect LED rays reflected from reflective inner facing surfaces of the mirror plates. Electrical power is supplied to the LED's from a battery power supply in the base of the mirror by electrically conductive pins which protrude radially outwards from opposite sides of the frame, the pins being rotatably supported in electrically conductive cups located in opposed arms of the yoke, the cups being connected to the power supply via wires disposed through the yoke arms and stanchion to the power supply.