Watch Cover Slope Design for Uniform LED Illumination
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Solution Overview
Problem
Existing watches with LED illumination for dark environments often suffer from high light emission intensity at certain points, making it difficult to visually recognize time and compromising design aesthetics.
Innovation Solution
The watch incorporates an annular light emitting member and an annular cover member with a slope configuration, including a first linear slope portion and a second curved slope portion, to reflect light in a manner that illuminates the display unit uniformly while hiding the high light emission intensity areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light source is disposed at a position easy for users to directly see, then the illumination intensity is high, but it becomes difficult to visually recognize time and the design aesthetics are impaired
Solution Approach 1:
The patent transitions the light source from a direct vertical illumination arrangement to a lateral arrangement along the outer periphery of the dial. By positioning the light emitting member in the radial direction at the periphery and using a reflector to redirect light, the system moves the light source to a different spatial dimension, achieving both high illumination intensity and proper light distribution for time recognition.
Solution Approach 2:
The patent introduces a reflector as an intermediary component between the light source and the dial. The reflector receives light from the peripherally positioned light emitting member and redirects it toward the dial surface, enabling indirect illumination that maintains design aesthetics while ensuring sufficient light reaches the display area for clear time recognition.
2Illumination intensity
If the light source is disposed at a position easy for users to directly see, then the illumination intensity is high, but the design aesthetics and luxuriousness are impaired
Solution Approach 1:
The patent repositions the light source from a central or top-mounted location to the outer periphery of the dial in the radial direction. This dimensional relocation allows the light emitting member to be positioned in a less visually prominent area, preserving design aesthetics while maintaining the capability for high illumination intensity through the use of a reflector.
Solution Approach 2:
The reflector serves as an intermediary that decouples the visual appearance from the functional light source. By placing the light emitting member at the periphery and using the reflector to redirect light, the actual light source becomes hidden or less visible, preserving design luxury while achieving effective illumination through the reflective intermediary.
3Shape
If the light source is disposed at a position difficult for users to see, then the design aesthetics are maintained, but the illumination uniformity may be compromised
Solution Approach 1:
The reflector acts as an intermediary that ensures uniform light distribution despite the periphery positioning of the light source. The reflector is configured to receive light from the light emitting member and distribute it evenly across the dial surface, maintaining both design aesthetics and illumination uniformity through this mediating optical element.
Solution Approach 2:
By positioning the light source in the radial direction at the periphery and using the reflector to redirect light at various angles, the system achieves uniform illumination across the dial area. The dimensional repositioning combined with reflective redirection ensures that light is distributed evenly without requiring the light source to be centrally located.
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
This configuration ensures sufficient and uniform illumination of the watch display, allowing for clear time recognition in dark environments while maintaining design aesthetics by hiding the high light emission intensity areas.
Implementation Method 1
A watch having a function of illuminating a display unit by a light source such as a light emitting diode (LED)
Implementation Method 2
The cover member has a slope inclined upward as extending inward from an outside of the watch in a lower portion. The slope of the cover member includes a first slope portion and a second slope portion
Data Source
AI summary
A watch includes an annular light emitting member and an annular cover member. At least part of the cover member covers the light emitting member in a planar view from above. The cover member has a slope inclined upward as extending inward from an outside of the watch in a lower portion. The slope of the cover member includes a first slope portion and a second slope portion, in a cross-sectional view from a planar direction orthogonal to a vertical direction. The first slope portion has a linear shape. The second slope portion is located below the first slope portion. The second slope portion has a curved shape.