Note PC Light Shielding Plates for Lens Isolation
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Solution Overview
Problem
Existing light guiding lens systems fail to achieve selective emission through desired light output portions due to unwanted light transmission between adjacent lenses, despite efforts to minimize this with U-shaped couplers, leading to interference and reduced visibility of lamps in electronic devices.
Innovation Solution
Incorporating light shielding plates with upper edges higher than the light input surfaces of the lenses and U-shaped couplers with thinner bridge portions to prevent direct light transmission between lenses, ensuring light is output through only the desired light output surfaces and minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If light guiding lenses are arranged close to each other to reduce device size, then device compactness is improved, but light transmission interference between adjacent lenses increases
Solution Approach 1:
Light shielding plates are introduced as intermediary elements positioned between adjacent light guiding lenses. These plates selectively block light transmission paths that would cause interference between lenses, while allowing the lenses to remain in close proximity for compact device design.
Solution Approach 2:
The space between adjacent light guiding lenses is segmented by introducing light shielding plates. This segmentation divides the optical path into isolated regions, preventing light from one lens from reaching adjacent lenses, thereby eliminating interference while maintaining compact arrangement.
2Object-generated harmful factors
If U-shaped couplers are used to minimize light transmission to non-target lenses, then light transmission control is improved, but selective emission through desired light output portions cannot be sufficiently realized
Solution Approach 1:
The coupling structure is segmented by introducing light shielding plates between adjacent light guiding lenses. This segmentation isolates the optical paths, ensuring that light coupled through U-shaped couplers remains confined to the intended lens and does not leak to adjacent lenses, thereby achieving reliable selective emission.
Solution Approach 2:
Light shielding plates serve as intermediary elements that work in conjunction with U-shaped couplers. While couplers facilitate controlled light coupling, the shielding plates act as mediators to prevent unwanted light transmission, together achieving both light transmission control and reliable selective emission.
3Volume of moving object
If distance between light input portion and adjacent coupler is kept short to reduce device size, then device compactness is improved, but light transmission to adjacent lenses increases
Solution Approach 1:
Light shielding plates are positioned as intermediary elements between the light input portion and adjacent couplers. Even when the distance is short for compactness, these shielding plates block direct light paths that would otherwise allow light to reach adjacent lenses through nearby couplers.
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 effectively prevents unwanted light transmission between adjacent lenses, allowing for selective lighting and enhanced visibility of lamps by positioning couplers away from light input surfaces and using light shielding plates to conceal lenses from each other, thereby improving the selective emission of light.
Implementation Method 1
Light shielding plates 40 are interposed between light guiding lenses 32
Implementation Method 2
a plurality of light guiding lenses 32, through which lens unit the light emitted from a plurality of light sources is output
Data Source
AI summary
According to one embodiment, a lighting unit incorporated in the housing of a note PC includes a lens unit provided with a plurality of light guiding lenses formed of a transparent resin, and a plurality of couplers coupling the light guiding lenses. A plurality of light shielding plates project from the inner surface of the housing between the light guiding lenses. Each light shielding plate has an upper edge at a level higher than the light input surfaces of the light guiding lenses.