Lighting Device with Switchable Enclosure for Video Projection
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Solution Overview
Problem
Existing lighting devices for decoration require replacing the imaging body with a pattern for video projection, limiting the ability to easily display various videos due to the need for pre-formed, optically transparent imaging bodies with patterns.
Innovation Solution
A lighting device with a lighting unit that includes a light source and a video forming section integrated or separate from the light source, capable of modulating light to project videos onto an enclosure, allowing for easy display of multiple videos by switching the light transmitting section's transparency and controlling the projection direction, and independently managing lighting and video functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an imaging body with a pattern is used for video projection, then video can be displayed on the enclosure, but it requires replacing the imaging body to change videos and limits the ability to easily display various videos
Solution Approach 1:
The imaging body is segmented into two functional layers: a base body made of optically transparent material and a separate pattern layer that can be easily replaced or changed. This allows the pattern layer to be swapped independently without replacing the entire imaging body structure.
Solution Approach 2:
The pattern layer can be changed by altering its optical parameters (transparency, pattern design) while keeping the base body constant. This enables easy switching between different video patterns by changing only the pattern layer's characteristics rather than the entire imaging body.
2Illumination intensity
If light is scattered for lighting function, then illumination is provided, but video visibility is reduced when light is used for lighting
Solution Approach 1:
The light transmitting section periodically switches between transparent state (for video projection) and scattering state (for lighting). This temporal separation allows the same component to serve both functions at different times, ensuring video visibility when needed and providing illumination when required.
Solution Approach 2:
The light transmitting section dynamically changes its optical properties from transparent to scattering based on operational requirements. This dynamic adaptability allows the system to optimize between video display quality and lighting function by adjusting the transparency state in real-time.
3Device complexity
If lighting and video projection functions are integrated, then device compactness is improved, but light from lighting mixes with video light and reduces video visibility
Solution Approach 1:
The lighting function is extracted from the video projection path by directing it through a separate route that does not pass through the imaging body. This separation ensures that lighting light does not mix with video light, maintaining video clarity while keeping the device integrated and compact.
Solution Approach 2:
A separate optical path acts as an intermediary for the lighting function, allowing light to reach the enclosure without passing through the imaging body. This intermediary path prevents contamination of video light by lighting light, ensuring clear video projection while maintaining device integration.
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 clear display of various videos with improved visibility and design flexibility by separating lighting and video projection functions, allowing for different light and video projection directions and easy switching between lighting and video modes.
Implementation Method 1
a light transmitting section provided in a position where the video light from the video forming section is irradiated, a transparent state and a non-transparent state of the light transmitting section being switched according to presence or absence of application of a voltage
Implementation Method 2
a video forming section configured to form video light obtained by modulating, on the basis of video information, light from a light source section for video formation
Implementation Method 3
an enclosure configured to cover a part or all of the periphery of the lighting unit and transmit light from the lighting unit
Data Source
AI summary
A lighting device includes a lighting unit and an enclosure (e.g., a shade) configured to cover a part or all of the periphery of the lighting unit and transmit light from the lighting unit. The lighting unit includes a light source section for lighting configured to radiate light and a video forming section configured to form video light obtained by modulating, on the basis of video information, light from a light source section for video formation configured integrally with or separately from the light source section for lighting and project the video light on the enclosure.