Vehicle Lamp LiDAR Range Control for Changing Road Conditions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle lamps with integrated LiDAR apparatuses do not effectively transmit light for detecting objects to an appropriate range based on road conditions, limiting their detection capabilities.
Innovation Solution
A vehicle lamp configuration that includes a LiDAR apparatus with a light source and a light reception element, along with a light control mechanism that adjusts the transmission range of the detection light based on road conditions, using reflection surfaces and actuators to modify the optical path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the LiDAR apparatus transmits light to a fixed detection range, then the device structure is simple, but the detection capability cannot be adapted to different road conditions
Solution Approach 1:
The patent applies the dynamics principle by making the detection range adjustable rather than fixed. The light control mechanism dynamically changes the transmission range of detection light based on road conditions (e.g., straight roads, intersections, curves). This is achieved through actuators that move reflection surfaces to redirect light beams, allowing the system to adapt its detection capability to different driving scenarios while maintaining a relatively compact structure.
2Measurement precision
If the light transmission range is extended to detect distant objects, then the detection capability is improved, but the return light intensity decreases
Solution Approach 1:
The patent applies the local quality principle by using multiple reflection surfaces (first reflection surface and second reflection surface) with different functions. The first reflection surface reflects detection light to a first detection range, while the second reflection surface redirects light to a second detection range. This allows the system to concentrate light energy in specific directions rather than dispersing it uniformly, thereby maintaining return light intensity even when extending detection range to distant objects.
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 transmission of detection light to an appropriate range based on road conditions, enhancing the detection of objects such as preceding vehicles, pedestrians, and bicycles, and allowing for the reception of return light.
Implementation Method 1
light for detecting a detection object (e.g., preceding vehicle, oncoming vehicle, pedestrian, bicycle, and motorcycle) transmitted to a first detection range... return light as reflected light of the light for detecting the detection object reflected by the detection object
Implementation Method 2
a first reflection surface designed to reflect and transmit the light for detecting the detection object emitted from the light source, to a second detection range wider than the first detection range
Implementation Method 3
an optical element disposed on an optical path of the light for detecting the detection object reflected by the first reflection surface and configured to be switched to a first state of allowing the light for detecting the detection object reflected by the first reflection surface to pass therethrough or a second state of reflecting the light for detecting the detection object reflected by the first reflection surface
Data Source
AI summary
There is provided a vehicle lamp that can transmit light for detecting a detection object (e.g., preceding vehicle, oncoming vehicle, pedestrian, bicycle, and motorcycle) transmitted from a LiDAR apparatus to an appropriate range based on a road condition around a vehicle (and receive return light thereof). The vehicle lamp includes: a LiDAR apparatus including a light source configured to emit light for detecting a detection object transmitted to a first detection range, and a light reception element configured to output, in a case where return light as reflected light of the light for detecting the detection object reflected by the detection object enters the light reception element, an electric signal corresponding to intensity of the return light; and a light control mechanism configured to control a transmission range of the light for detecting the detection object, based on a road condition around a vehicle.