Compact Surface Shape Determination Device Using Illuminating Line
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Solution Overview
Problem
Existing surface shape determination devices require significant installation space, particularly when used in compact devices like mobile computers and phones, due to their structural height limitations and the need for extensive setup.
Innovation Solution
A compact determination device utilizing an illuminating line directed to a sensor line, where the surface shape is determined by analyzing runtime differences of the illuminating line reflected from the object, with optional features like movable illuminating lines, time-delayed illumination, and pulsed light to enhance scanning capabilities and reduce device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional surface shape determination devices are used, then surface shape can be determined, but the installation space required is large
Solution Approach 1:
The patent segments the sensing function into a one-dimensional sensor line rather than using a full two-dimensional sensor array. This segmentation allows surface shape determination along the line direction while reducing the overall device volume, particularly in the direction perpendicular to the sensor line where structural height is limited
Solution Approach 2:
The patent moves the illumination line in the direction perpendicular to the sensor line arrangement to scan a larger object area. By adding temporal scanning dimension, the system achieves two-dimensional surface coverage using a one-dimensional sensor, effectively trading spatial complexity for temporal operation
2Volume of moving object
If a one-dimensional sensor line is used instead of two-dimensional sensor arrangement, then device size is reduced, but scanning capability is limited
Solution Approach 1:
The patent introduces dynamic movement of the illumination line perpendicular to the sensor line arrangement. This dynamic scanning approach allows a static one-dimensional sensor line to capture surface information from multiple positions, effectively providing two-dimensional scanning capability without requiring a two-dimensional sensor array
Solution Approach 2:
The system uses periodic illumination line movement to scan different sections of the object. By repeatedly moving the illumination line across the object surface and capturing reflected light at different positions, the system builds up complete surface shape information through periodic scanning cycles
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 efficient and compact surface shape determination, allowing for larger area scanning and movement detection, while reducing the device's installation space requirements, and enabling gesture recognition and control signal generation.
Implementation Method 1
illuminating light of the illuminating line reflected by the object is directed to a sensor line
Implementation Method 2
the surface shape is determined from run-time differences of different sections of the illuminating line
Data Source
AI summary
The disclosure relates to a method and a determination device for determining a surface shape of an object. In order to build the determination device as compact as possible, according to the invention, the object is illuminated by an illuminating line and illuminating light reflected by the object is directed to a sensor line of the determination device.