LED Illuminating Magnifier with Overlapping Conical Beams
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Solution Overview
Problem
Conventional illuminating magnifiers are not environmentally friendly due to mercury-containing fluorescent bulbs, lack sufficient brightness and uniformity, and are ergonomically unfriendly with limited control over light intensity and direction, leading to potential defects in inspection of work-pieces.
Innovation Solution
A die-cast magnifier housing with a central lens and distributed wide-angle light emitting diodes that produce overlapping conical light beams, providing uniform illumination and allowing for ergonomic adjustment and control over light intensity and direction, using a safer 15V DC power source and thermal stanchion pairs for heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If fluorescent bulbs are used to illuminate the lens field of view, then the housing structure is simple, but the light brightness and uniformity are insufficient and mercury pollution occurs
Solution Approach 1:
The patent extracts and removes the harmful fluorescent bulb and mercury-containing components from the magnifier system. Instead, it introduces LED light sources that provide adequate illumination without mercury pollution or high voltage hazards, thus eliminating the harmful factors while maintaining the illumination function.
Solution Approach 2:
The patent changes the illumination parameters by transitioning from fluorescent bulbs to LED sources, altering the spectral characteristics, brightness distribution, and safety parameters. This parameter change achieves both improved illumination quality and elimination of harmful substances.
2Ease of manufacture
If bottle type LEDs with integral lenses are arranged around the lens axis, then the device structure is simple, but the light forms a ring of hot spots at a fixed distance causing non-uniform illumination
Solution Approach 1:
The patent applies local quality by using multiple LED sources distributed around the lens axis, each illuminating a specific zone. This creates overlapping illumination fields that collectively provide uniform coverage across the entire field of view, with each LED optimized for its local illumination task.
Solution Approach 2:
The patent merges multiple LED light sources and their illumination fields into a unified lighting system. By combining the light output from multiple LEDs positioned at different locations, the system achieves uniform illumination across the field of view, overcoming the hot spot problem of single-point sources.
3Ease of operation
If conventional magnifier housing is used, then the manufacturing process is simple, but ergonomic control over light intensity and direction is limited
Solution Approach 1:
The patent introduces dynamic control capabilities to the magnifier housing, allowing the light intensity and direction to be adjusted during operation. This includes variable intensity control of the LED sources and positioning mechanisms that enable ergonomic adjustment of the illumination angle and direction.
Solution Approach 2:
The magnifier housing is designed with multi-functionality, combining illumination, magnification, and ergonomic adjustment features in a single integrated structure. The housing serves not only as a structural support but also as a platform for multiple control functions including light intensity adjustment and directional control.
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 solution provides a more environmentally friendly, ergonomically friendly, and uniformly illuminated workspace that reduces the risk of missing defects during inspection, with adjustable light settings and improved safety.
Implementation Method 1
a plurality of light emitting diodes distributed about that axis at the underside of the housing, each diode, when energized, producing a conical light beam
Implementation Method 2
The first rounded vertical side of the thermal stanchion is narrower (heel) than the second rounded vertical side (toe). Thus, the structure of each of the thermal pedestal pairs is passively adapted to efficiently and quickly dissipate heat from the top surface heel side to the magnifier housing
Data Source
AI summary
An illuminating magnifier has an annular housing with an underside, an inner edge defining an opening and an outer edge. A magnifying lens fills the opening, which lens has an optical axis. Light emitting diodes are distributed about the axis at the underside of the housing, each diode, when energized, producing a relatively wide angle conical light beam with a central hot spot cone which cart illuminate a viewing field below the lens. Special mounting surfaces at the housing underside aim the diodes in the diode array at selected angles relative to the lens axis so that the conical light beams therefrom overlap and all points in the viewing field are illuminated by the light beam from each diode and a center region of that field around the axis is illuminated by the hot spot cones of all the diodes.