Flashlight Cover Radial Light Dispersion
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Solution Overview
Problem
Existing flashlights lack the ability to easily switch between a focused and a dispersed light beam, limiting user options for illumination, especially in situations requiring a wider field of light without complicating the device or interfering with articulating head motion.
Innovation Solution
A selectively attachable cover for flashlights with a beam intercepting panel and radial slot openings that disperses light emitted from the flashlight head, allowing for a broader field of illumination by blocking and deflecting the light beam radially outwardly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a flashlight projects a focused and concentrated beam of light, then illumination intensity at distance is improved, but field of illumination diameter is reduced
Solution Approach 1:
The cover is divided into multiple radial slot openings that segment the light beam into multiple dispersed paths, transforming the single focused beam into multiple radial beams that illuminate a wider area while maintaining intensity through the slot geometry
2Area of stationary object
If a flashlight is designed to provide wide area illumination in close proximity, then field of illumination diameter is improved, but illumination intensity at distance is reduced
Solution Approach 1:
The cover provides dynamic switching capability between focused and dispersed beam modes, allowing the user to adapt the illumination pattern from a concentrated beam for distance to a dispersed radial pattern for wide area coverage, with the cover being selectively attachable and removable
3Adaptability or versatility
If a device is added to switch between focused and dispersed light beams, then adaptability is improved, but device complexity is increased
Solution Approach 1:
The cover acts as an intermediary optical element that simplifies the switching mechanism - instead of complex internal moving parts or adjustable lenses, a simple attachable cover with radial slots provides beam dispersion, reducing overall device complexity while maintaining versatility
Solution Approach 2:
The cover is designed as a simple, inexpensive, removable accessory rather than an integrated complex mechanism, allowing easy attachment and removal to switch between beam patterns without adding permanent complexity to the flashlight structure
4Area of stationary object
If a cover is added to disperse light radially, then field of illumination diameter is improved, but articulating motion freedom is restricted
Solution Approach 1:
The light dispersing function is extracted into a separate removable cover rather than being integrated into the flashlight head, allowing the cover to be removed when articulating motion is needed without the cover interfering with the rotation mechanism
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 users to switch between focused and dispersed light beams without adding complexity, providing enhanced illumination options while maintaining the articulating motion of the flashlight head.
Implementation Method 1
a light beam emitted from the flashlight head is intercepted by the overlying panel and at least a portion of the light is dispersed radially outwardly through the slot openings
Data Source
AI summary
A light dispersing flashlight cover adapted for selective attachment to a flashlight having an articulating head. The cover includes a platform supported in resilient cantilevered relation such that the platform is disposed in overlying, raised relation to at least a portion of the flashlight lens when the cover is in place. A light beam emitted through the lens is at least partially blocked by the platform and is dispersed radially relative to the lens.