Rotary Lighting Apparatus with Pivot Connection and Extraction
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Solution Overview
Problem
Existing rotary illuminating electrical devices fixed on walls or ceilings face challenges in achieving full 360-degree rotation due to electrical connection wires, which limits the orientation of the light flux and can cause eye irritation from direct light streams.
Innovation Solution
A rotary illuminating device with a pivot connection mechanism allowing infinite rotation around an orthogonal axis, featuring a movable part with a reflector and collimating optics, and a micro-spherical structure on the cover to homogenize light, eliminating the need for mechanical stops and reducing direct light exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the movable part is rotated to change light orientation, then the orientation flexibility is improved, but the electrical wires suffer mechanical stress and degradation
Solution Approach 1:
The patent extracts the light source from its fixed mounting position and places it on a movable part that can rotate independently. The electrical connection is separated from the rotating assembly, with wires fixed to the stationary housing rather than the movable component. This extraction allows the light source to rotate freely without dragging electrical wires, eliminating mechanical stress on the wiring while maintaining full orientation flexibility.
2Reliability
If movement stops are placed to protect electrical wires, then the electrical mechanism reliability is improved, but the rotation amplitude is limited
Solution Approach 1:
The patent removes the need for movement stops by extracting the electrical connection from the rotating assembly. Since the light source rotates on a pivot without electrical wires attached to the movable part, there is no mechanical stress on wiring to protect, eliminating the need for limiting stops and enabling unlimited 360-degree rotation in both directions.
3Illumination intensity
If the light source is directly oriented towards users, then the illumination intensity is improved, but eye irritation occurs
Solution Approach 1:
The patent inverts the direct light path by introducing a reflector positioned behind the light source. Instead of light traveling directly from the source to the target area, the reflector captures light from the rear of the source and redirects it forward through the movable part. This inversion allows the light source to be oriented away from users while still providing intense illumination in the desired direction, eliminating direct exposure to the bulb that causes eye irritation.
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
Enables easy and reliable orientation of the light flux without mechanical constraints, providing uniform and comfortable illumination by allowing endless rotation and dispersing light evenly, reducing eye fatigue.
Implementation Method 1
at least one means for connecting the movable part to the fixed part so that the movable part is rotatable relative to the fixed part at its base
Implementation Method 2
the mobile part having a reflector
Implementation Method 3
one lens and means for directing the light beam(s) towards the lens
Implementation Method 4
a micro-spherical structure on the cover to homogenize light
Data Source
Figure 1a
Figure 1b
Figure 2
AI summary
The apparatus has a fixed part and a movable part (3). The fixed part is intended to be fastened to a wall, and includes an electrical switchgear mechanism, and an LED for generating a light flux. The moving part includes a base (7), an optical unit (8), and a reflector for directing the flow of light to the optical unit. A connecting unit (9) connects the movable part to the fixed part so that the movable part is rotatable relative to the fixed part at its base. The connecting unit includes a ring (10) forming a pivot connection with a cover (15) of the fixed part. An independent claim is also included for an assembly of an electric lighting apparatus and a recessed housing.