Optical Device Beam Splitter Assembly Structured Light Patterns
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional optical devices for generating structured light patterns lack sufficient density and diversity, limiting their application in precise spatial information calculation and diversification of projected contents.
Innovation Solution
An optical device incorporating a beam splitter assembly with a semi-transmissive semi-reflective structure and total reflection structure increases the number of structured light patterns on a projection surface by splitting the original light into multiple patterns, enhancing resolution and diversity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a conventional structured light generation unit is used, then the device structure is simple, but the density and number of structured light patterns are insufficient
Solution Approach 1:
The beam is segmented into multiple portions using the beam splitter assembly, which includes a semi-transmissive semi-reflective structure and a total reflection structure. This divides the original single structured light pattern into multiple patterns (first structured light pattern and second structured light pattern), increasing the quantity of light patterns without requiring multiple independent light sources.
Solution Approach 2:
The beam splitter assembly acts as an intermediary component between the structured light generation unit and the projection surface. It mediates the light path by selectively transmitting and reflecting different portions of the beam, thereby multiplying the structured light patterns while keeping the overall device structure relatively simple.
2Measurement precision
If a conventional structured light generation unit is used, then the device structure is simple, but the resolution is insufficient
Solution Approach 1:
By segmenting the beam into multiple portions that form overlapping structured light patterns, the system increases the density of light lines on the projection surface. This enhanced density provides more spatial sampling points, thereby improving the precision of spatial information calculation.
Solution Approach 2:
The invention introduces an additional optical dimension by creating a second structured light pattern through reflection and re-transmission. This second pattern can be scaled or positioned differently, adding spatial diversity that enhances measurement precision without simply increasing the complexity of a single pattern.
3Adaptability or versatility
If a conventional structured light generation unit is used, then the device structure is simple, but the projected contents are not diversified
Solution Approach 1:
The beam splitter assembly provides multi-functionality by simultaneously creating multiple structured light patterns with different characteristics (first pattern and second pattern). These patterns can be scaled, positioned, and overlapped in various configurations, enabling diverse projection contents from a single light source and optical path.
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 optical device effectively doubles the number of lines, planes, or grids on the projection surface, enabling precise spatial information calculation and increasing the resolution and diversity of projected contents.
Implementation Method 1
a semi-transmissive semi-reflective structure and a total reflection structure. First portions of plural light beams of the structured light are transmitted through the semi-transmissive semi-reflective structure of the beam splitter assembly and projected on a projection surface
Implementation Method 2
Second portions of the plural light beams of the structured light are reflected by the semi-transmissive semi-reflective structure and the total reflection structure sequentially and projected on the projection surface
Data Source
AI summary
An optical device includes a structured light generation unit and a beam splitter assembly. The structured light generation unit generates a structured light. The beam splitter assembly is arranged in a travelling path of the structured light. The beam splitter assembly includes a semi-transmissive semi-reflective structure. A portion of the structured light is transmitted through the semi-transmissive semi-reflective structure of the beam splitter assembly and projected on a projection surface. Consequently, a first structured light pattern is formed on the projection surface. Another portion of the structured light is reflected by the semi-transmissive semi-reflective structure of the beam splitter assembly and projected on the projection surface along a different path. Consequently, a second structured light pattern different from the first structured light pattern is formed on the projection surface. The number of structured light patterns or the projected area is correspondingly adjusted.