Lidar Optical Alignment for Wider Field of View Detection

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Solution Overview

Problem

The detection capabilities and detection distance of lidar are limited due to the restricted sizes of laser emission and reception apertures, and the field of view of coaxial optical paths are insufficient, leading to complex and costly adjustments and maintenance.

Innovation Solution

A lidar design incorporating a transceiver component with an emitting assembly, beam splitting assembly, and receiving assembly, where the emitting assembly is aligned with a beam splitting assembly and a reflector assembly, and the receiving assembly is aligned with the beam splitting assembly, allowing for independent adjustment and calibration of positions and angles to optimize light signal detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple emitting assemblies and receiving assemblies are used to expand field of view, then detection range is improved, but device complexity and adjustment difficulty increase

Engineering Contradiction:

Improvefield of viewVSAvoidnumber of optical components

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple emitting assemblies and receiving assemblies into a single integrated lidar device, sharing common optical components including beam splitting assemblies, reflector assemblies, and detector assemblies. This merging approach expands the field of view while avoiding the complexity of completely separate systems for each assembly.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent implements universal optical components that serve multiple functions: beam splitting assemblies direct light from multiple emitting assemblies, reflector assemblies reflect light to multiple receiving assemblies, and detector assemblies detect signals from multiple receiving assemblies. This multi-functionality reduces overall device complexity while maintaining expanded field of view capability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple emitting assemblies and receiving assemblies are used to expand field of view, then detection range is improved, but adjustment and calibration difficulty increases

Engineering Contradiction:

Improvefield of viewVSAvoidadjustment and calibration

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent segments the lidar system into modular functional units: emitting assemblies, beam splitting assemblies, reflector assemblies, receiving assemblies, and detector assemblies. Each module can be independently adjusted and calibrated, then integrated as a coordinated system. This segmentation makes adjustment and calibration more manageable compared to a fully integrated non-modular system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent enables preliminary adjustment and calibration of individual modules (emitting assemblies, beam splitting assemblies, reflector assemblies, receiving assemblies) before final system integration. This preliminary action ensures each component is pre-aligned and optimized, reducing the complexity of final system-wide calibration.

Inventive Principle:

Principle #10Preliminary action

3Volume of stationary object

If coaxial optical path with limited aperture sizes is used, then device compactness is maintained, but detection effect and detection distance are limited

Engineering Contradiction:

Improvedevice sizeVSAvoiddetection effect

Core Design Contradiction:

Volume of stationary objectVSMeasurement precision

Solution Approach 1:

The patent transitions from a single coaxial optical path to a multi-dimensional optical architecture using multiple emitting assemblies arranged at different positions and angles, with corresponding receiving assemblies. This spatial dimensionality expansion increases the effective aperture and field of view without proportionally increasing device volume, as components share common optical paths and processing electronics.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 design simplifies the assembly and maintenance process, reduces maintenance costs, and ensures reliable detection performance by aligning optical components to meet detection requirements, enabling larger field of view angles and improved detection efficiency.

Implementation Method 1

The beam splitting assembly may be configured to deflect the reflected light signal

Methodology Applied

Scientific EffectLight reflection: Reflection

Implementation Method 2

an outgoing light signal emitted by the emitting assembly may be reflected by a reflector of the reflector assembly

Methodology Applied

Scientific EffectLight reflection: Reflection

Data Source

PatentUS12487346B2Lidar and adjustment method thereof

Publication Date: 2025.12.02 SUTENG INNOVATION TECHNOLOGY CO LTD

AI summary

A lidar and a lidar adjustment method are provided. The lidar includes at least one transceiver component. The at least one transceiver component includes an emitting assembly, a beam splitting assembly, and a receiving assembly. The emitting assembly is configured to emit an outgoing light signal. The outgoing light signal is emitted, through the beam splitting assembly, towards a detection region and reflected by a target object to form a reflected light signal. The receiving assembly is configured to receive the reflected light signal after being deflected by the beam splitting assembly.