Two-Stage Optical Deflection for Inclined Vehicle Lamp Axes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional light beam adjusting devices for vehicle lamps are inflexible and have stiff requirements on space and component arrangement, making it difficult to achieve desired light beam adjustments when the light emitting axis is inclined, limiting the style and design of vehicle lamps.
Innovation Solution
A light beam adjusting device comprising two optical deflection units with arrays of prisms and light distribution protrusions, allowing for two-stage deflection of the light beam to achieve the desired deflection direction, even when the light emitting axis is inclined, through a compact structure that includes a first optical deflection unit and a second optical deflection unit with prisms and light distribution protrusions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single-function light beam adjusting device is used, then the structure is simple, but the adaptability to inclined light emitting axes and design flexibility are poor
Solution Approach 1:
The light beam adjusting device is divided into two separate optical deflection units: a first optical deflection unit for initial beam deflection and a second optical deflection unit for further deflection and intensity distribution adjustment. This segmentation allows each unit to be optimized for specific functions, enabling the system to handle inclined light emitting axes effectively while maintaining manageable structural complexity through modular design
Solution Approach 2:
The second optical deflection unit serves multiple functions: it deflects the light beam at a second deflection angle and simultaneously adjusts the intensity distribution of the light beam through its array of prisms. This multi-functionality reduces the need for additional separate components, achieving high adaptability without proportionally increasing device complexity
2Adaptability or versatility
If the light emitting axis is inclined with respect to the light emitting direction, then design flexibility is improved, but the difficulty of achieving desired light beam adjustment increases
Solution Approach 1:
The adjustment process is segmented into two stages: the first optical deflection unit handles the initial deflection to align the inclined light emitting axis with the optical path, while the second optical deflection unit performs the final positioning and intensity distribution adjustment. This segmentation simplifies the overall adjustment difficulty by breaking down the complex single-step adjustment into two manageable steps
Solution Approach 2:
The first optical deflection unit acts as an intermediary between the inclined light emitting axis and the second optical deflection unit. It pre-aligns the light beam from the inclined source, making the subsequent adjustment in the second unit more straightforward and reducing the complexity of achieving the desired final beam direction and intensity distribution
3Adaptability or versatility
If space requirements for components are made flexible, then style design freedom is improved, but the precision of component arrangement becomes more difficult to control
Solution Approach 1:
By dividing the system into two separate optical deflection units with distinct functions, each unit can be positioned more independently within the available space. The first unit handles initial deflection while the second unit handles final positioning and intensity control, allowing greater flexibility in spatial arrangement while maintaining manufacturing precision through functional separation
Solution Approach 2:
The array of prisms in the second optical deflection unit automatically adjusts the intensity distribution of the light beam based on its inherent optical properties. This self-service mechanism reduces the need for precise manual adjustment of component positions, as the system inherently compensates for variations in arrangement, thereby maintaining manufacturing precision even with flexible space requirements
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 adjustment of light beam direction and intensity distribution to meet specific vehicle lamp standards, such as Chinese and European standards, by effectively deflecting the light beam along a desired path, even with an inclined light emitting axis, thus enhancing design flexibility and meeting regulatory requirements.
Implementation Method 1
a first optical deflection unit (10) having a first light incidence face (11) and a first light exit face (12), the first optical deflection unit being arranged to deflect a light which is incident from the first light incidence face (11) and exits from the first light exit face (12) at a first deflection angle
Implementation Method 2
a second light incidence face (21) facing the first light exit face (12), and the second light incidence face being provided with an array of prisms which are arranged to deflect the light exiting from the first light exit face (12) at a second deflection angle
Implementation Method 3
the second light exit face (22) being provided with a plurality of light distribution protrusions (24) arranged to adjust a distribution of intensity of the light which is deflected by the second light incidence face (21) and exits from the second light exit face (22)
Data Source
AI summary
A light beam adjusting device includes a first optical deflection unit having a first light incidence face and a first light exit face, the first optical deflection unit being arranged to deflect light which is incident from the first light incidence face and which exits from the first light exit face at a first deflection angle. A second optical deflection unit has a second light incidence face and a second light exit face, the second light incidence face being arranged to face the first light exit face and including an array of prisms arranged to deflect the light exiting from the first light exit face at a second deflection angle. The light beam adjusting device obtains the desired deflection direction of the incident light beam by a compact structure providing two-stages of optical deflection units to achieve the deflection of an incident light beam.