Light Patterning Device with Segmented Reflective Walls
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Solution Overview
Problem
Conventional light illuminating and signaling apparatuses, such as vehicle lamps, lack the capability to pattern illuminating or signaling light to meet customized requirements for depth of field and information transmission, particularly in forming multilevel three-dimensional optical effects.
Innovation Solution
A light patterning device with reflective and light transmission areas on a reflective wall, where the first reflective wall forms a bright region by transmitting light and the second reflective wall forms a dark region through partial reflection, allowing for the creation of customized patterns by directing light between these areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional light illuminating or signaling apparatus is used, then the structure is simple, but the capability to pattern light and form customized optical effects is lacking
Solution Approach 1:
The reflective wall is segmented into distinct functional areas: a first reflective area for reflecting light towards the light transmission area, and a second reflective area for reflecting light back towards the first reflective area. This segmentation enables the creation of patterned light effects by controlling which segments reflect light and which allow transmission, thereby adding light patterning capability without requiring a completely new device structure.
Solution Approach 2:
Different areas of the reflective wall are assigned different optical properties: the first reflective area has high reflectivity to direct light towards the transmission area, while the second reflective area also has high reflectivity but is oriented to reflect light back towards the first area. The light transmission area has high transmissivity. This local differentiation of optical properties enables precise control over light patterns while using a single integrated component.
2Illumination intensity
If light transmission area is used to form bright region, then light transmission is achieved, but light loss occurs
Solution Approach 1:
The first reflective area acts as an intermediary element that receives light from the light source and redirects it towards the light transmission area. This intermediary reflection ensures that light is efficiently directed to where it is needed for bright region formation, maximizing the utilization of transmitted light and minimizing losses from scattered or undirected light.
3Adaptability or versatility
If multiple reflective areas are used to create patterns, then light patterning capability is improved, but device complexity increases
Solution Approach 1:
Multiple reflective areas with different functions (first reflective area for directing light to transmission area, second reflective area for redirecting light back) are merged into a single integrated reflective wall component. This consolidation achieves complex light patterning functionality while avoiding the complexity of multiple separate components, as all reflective areas are part of one monolithic structure.
Solution Approach 2:
The light patterning is achieved by utilizing the two-dimensional surface of the reflective wall, dividing it into different functional zones (first reflective area, second reflective area, light transmission area) arranged in specific spatial configurations. This approach enables complex light patterns to be created through planar geometric arrangements rather than requiring three-dimensional complex structures.
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 the production of customized light effects with distinct bright and dark regions, enhancing optical efficiency and reducing optical loss, while allowing for the creation of patterns like letters, geometric figures, or codes, which can be used for ornamental or informative purposes.
Implementation Method 1
a first reflective wall adjoining the light incidence portion and extending towards a periphery of the light patterning device from the light incidence portion along the first side of the light patterning device, the first reflective wall having a first reflective area
Implementation Method 2
a light transmission area which is configured to at least partly transmit the light from the light incidence portion or the first reflective area out of the light patterning device so as to form a bright region
Implementation Method 3
a second reflective area which is configured to at least partly reflect the light from the light incidence portion or the first reflective area towards the first reflective area of the first reflective wall so as to form a dark region
Implementation Method 4
the first reflective area of the first reflective wall at least partly reflecting the light from the second reflective area of the second reflective wall towards the second reflective wall
Data Source
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AI summary
A light patterning device and an illuminating and/or signaling apparatus are provided. The light patterning device (100) comprises: a light incidence portion for receiving an incident light (10, 14); a first reflective wall (2) having a first reflective area (21); and a second reflective wall (3) being provided with a light transmission area (32) at least partly transmitting the light from the light incidence portion (1) or the first reflective area (21) out of the light patterning device (100) so as to form a bright region and a second reflective area (31) at least partly reflecting the light towards the first reflective area (21) so as to form a dark region, the first reflective area (21) at least partly reflecting the light from the second reflective area (31) towards the second reflective wall (3).