Gradient-Illuminated Mirror Layout to Reduce Dressing Room Shadows
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Solution Overview
Problem
Conventional dressing room lighting, typically overhead fluorescent or halogen bulbs, creates harsh and unflattering conditions that lead to undesirable shadowing and a negative shopping experience, resulting in reduced sales and customer dissatisfaction.
Innovation Solution
A modular lighted mirror system with a gradient or tapered illumination profile, where the highest intensity is focused on the head and torso area with decreasing intensity towards the lower body, using linear arrays of light emitting elements and a power regulation system that adjusts based on user height, ensuring adequate illumination without harsh shadows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional overhead fluorescent or halogen bulbs are used for dressing room lighting, then the room is adequately illuminated, but harsh shadows and unflattering lighting conditions are created
Solution Approach 1:
The lighting system is segmented into multiple independent LED modules arranged in a grid pattern around the mirror. Each module can be controlled independently to create different illumination patterns, allowing the system to provide adequate overall brightness while distributing light sources to minimize harsh shadow formation.
Solution Approach 2:
The system implements local quality control by allowing different regions of the mirror to receive different illumination intensities and color temperatures. The controller can adjust individual LED modules to create soft, flattering light in specific areas while maintaining adequate overall illumination, thereby eliminating harsh shadows in critical viewing zones.
2Illumination intensity
If side-lit mirrors with conventional bulbs are used, then illumination is provided, but the system generates substantial heat and requires high maintenance
Solution Approach 1:
The system replaces conventional incandescent or fluorescent bulb lighting with LED technology. LEDs are solid-state light sources that convert electrical energy directly to light with minimal heat generation, eliminating the substantial heat production associated with traditional bulb-based lighting systems while maintaining adequate mirror illumination.
Solution Approach 2:
The system changes the operational parameters of the lighting by using LEDs that operate at lower temperatures and lower power consumption. This parameter change from high-heat conventional bulbs to low-heat LEDs resolves the heat generation issue while maintaining the required illumination intensity for the mirror.
3Illumination intensity
If conventional side-lit mirrors are installed, then lighting is provided, but the system is bulky and requires architectural integration
Solution Approach 1:
The lighting system is divided into multiple small, modular LED modules that can be independently mounted around the mirror perimeter. This segmentation allows the system to be installed in various configurations without requiring bulky housing or extensive architectural integration, as each module is compact and self-contained.
Solution Approach 2:
The LED module design incorporates multiple functions within a single compact unit: light emission, heat dissipation, and structural mounting capability. This multi-functionality eliminates the need for separate architectural integrations and reduces overall system bulk while maintaining adequate dressing room illumination.
4Area of stationary object
If uniform intensity illumination is provided across the entire mirror, then complete coverage is achieved, but shadowing from below occurs
Solution Approach 1:
The system implements non-uniform illumination by assigning different intensity levels to different regions of the mirror. The lower portions of the mirror receive reduced intensity compared to upper portions, preventing shadowing from below while maintaining adequate overall coverage. This local quality variation allows the system to achieve complete area coverage without the harmful shadowing effect.
Solution Approach 2:
The illumination system is made dynamic through electronic control of individual LED modules. The controller can adjust the intensity of each module independently, allowing the system to adapt the light distribution pattern to eliminate shadowing while maintaining complete coverage. This dynamic adjustment capability enables the system to optimize illumination patterns in real-time.
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 flattering and comfortable viewing experience, enhancing color differentiation and reducing shadowing, thereby improving customer satisfaction and sales in retail environments.
Implementation Method 1
a light source including a linear array of light emitting elements and an arrangement for regulating power to the array whereby the light emitting elements emit light in accordance with a tapered gradient intensity profile
Data Source
AI summary
An illumination system comprising a light source with a linear array of light emitting elements and an arrangement for regulating power to the array whereby the light emitting elements emit light in accordance with a tapered gradient intensity profile. In the illustrative embodiment, the light source includes first and second linear arrays of light emitting elements and a mirror is mounted there between. The tapered profile begins at the waist of a user when a user is standing near and in front of the mirror. In the digital embodiment, a camera is included along with software for detecting the user's waist (or detecting the user's height and inferring therefrom said user's waist) and adjusting the profile based on the detection of the user's height or waist. Any intensity profile, e.g. ramp, Gaussian, etc., may be implemented and one or more such arrays may be used and mounted horizontally, vertically or both. Each array may have a different intensity or luminous profile. In addition, or as an alternative, to the intensity profile, other optical qualities, such as color, may be changed across one or more of the arrays.