Laser Animation Display via Diffraction Element Translation
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Solution Overview
Problem
Current laser lamp products primarily display static images, and achieving dynamic image display with ideal effects without significant cost or system complexity increases is a challenge in the industry.
Innovation Solution
A laser animation display method involving a system with a laser source, a diffraction optical element, and a mechanical driving device, where microstructures with phase information on the diffraction optical element are translated relative to the laser beam, enabling dynamic image display through sequential irradiation of patterns, using both linear and circumferential driving devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If laser lamp displays static images only, then the system structure remains simple and cost-effective, but the display content and effect are insufficient
Solution Approach 1:
The patent segments the diffraction optical element into multiple microstructures, where each microstructure corresponds to a different frame of image. This segmentation allows the system to display dynamic images by sequentially activating different microstructures through mechanical translation, thereby enriching display content without requiring complete system redesign
Solution Approach 2:
The patent introduces a mechanical driving device that enables the diffraction optical element to perform translation motion relative to the laser beam. This dynamic capability allows sequential irradiation of different microstructures, transforming the static image display into dynamic animation display while maintaining relatively simple system structure
2Adaptability or versatility
If dynamic image display is implemented, then the display effect is improved, but the cost and system complexity increase remarkably
Solution Approach 1:
The patent designs the mechanical driving device with dual functionality: it can drive the diffraction optical element to translate in linear direction for sequential image display, and also rotate the diffraction optical element for image rotation effects. This multi-functionality achieves rich dynamic display effects without requiring separate mechanisms for each function, thereby controlling system complexity
Solution Approach 2:
The patent combines multiple functions into a single integrated system: the laser source, diffraction optical element with multiple microstructures, and mechanical driving device work together as one unified system. The mechanical driving device simultaneously handles both translation and rotation functions, merging multiple subsystems into a compact configuration that reduces overall system complexity
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 method allows for dynamic image display with minimal additional cost and system complexity, enhancing the display effect while maintaining high brightness and collimation, addressing the limitations of conventional laser lamp products.
Implementation Method 1
Micrometer/nanometer-scale steps are machined on the surface of the diffraction optical element, and by virtue of a diffraction effect of the steps on light, the diffraction optical element may output incident dot laser as a required image
Data Source
AI summary
The present invention discloses a laser animation display method. A display system includes three parts, i.e., a laser source, a diffraction optical element and a mechanical driving device. The display method includes the following steps: S1: the laser source emits laser at first, and the laser is caused to be incident on the pattern of a first microstructure on the diffraction optical element; S2: the diffraction optical element is driven by the mechanical driving device to translate to irradiate the pattern of a second microstructure of the diffraction optical element with the laser, and the patterns on other microstructures are sequentially irradiated with the laser according to the same method; and S3: cyclic movement is kept, thereby achieving an animation effect on a screen. The present invention implements laser animation display on the premise of no additional motion control unit and almost no increase of the system size and cost.