Integrated Low Beam Optical Module for Region III Illumination
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Solution Overview
Problem
Existing low beam optical modules for vehicles require additional space and materials due to separate arrangements of light-shielding sheets and light concentrating structures, affecting the low beam shape and weight efficiency.
Innovation Solution
A low beam optical module integrating a light-shielding sheet with a transparent front and rear surface and a light concentrating portion, where the light-shielding sheet includes a low beam cutoff line structure, and the light concentrating portion is connected to the rear end of the sheet, forming an integrated optical element that refracts light to create the low beam region III beam shape without affecting the original low beam shape, achieving weight reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a non-transparent light-shielding sheet and a primary optical element are arranged separately, then the low beam cutoff line structure can be formed, but the space occupation increases and weight increases
Solution Approach 1:
The patent combines the light-shielding sheet and the primary optical element into a single integrated optical element. The light-shielding sheet body with transparent front and rear surfaces is integrated with light concentrating portions, eliminating the need for separate arrangement of non-transparent light-shielding sheets and primary optical elements, thus reducing space occupation and weight while maintaining the low beam cutoff line formation capability
2Shape
If a non-transparent light-shielding sheet is used, then the low beam cutoff line can be formed, but light cannot pass through to form region III beam shape
Solution Approach 1:
The patent makes the front surface and rear surface of the light-shielding sheet body transparent in specific regions, allowing light to pass through these localized transparent portions to form the region III beam shape, while maintaining the light-shielding property in other regions to preserve the low beam cutoff line formation capability
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
The integrated module allows for efficient light projection forming the low beam region III beam shape without impacting the original low beam shape, reducing material usage and space occupation, aligning with the industry's trend towards lighter vehicle lamps.
Implementation Method 1
the light-shielding sheet body can receive emitted light of the light concentrating portion and refract the light from the front end surface to the lens
Data Source
AI summary
A low beam optical module includes a lens, a light-shielding sheet and at least one light concentrating portion. The light-shielding sheet includes a light-shielding sheet body. An upper edge of a front end of the light-shielding sheet body comprises a low beam cutoff line structure. A front end surface and the rear end surface of the light-shielding sheet body are transparent. The light concentrating portion is connected to a rear end of the light-shielding sheet. The lens is arranged in front of the light-shielding sheet, and an outer contour surface of the at least one light concentrating portion is engaged with a lower surface of the light-shielding sheet body—the light-shielding sheet body can receive emitted light of the light concentrating portion and refract the light from the front end surface to the lens. The projected light forms a low beam region III beam shape. A low beam illumination module, a vehicle lamp and a vehicle includes the low beam optical module.