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Active alignment using continuous motion sweeps and temporal interpolation

一种时间、主动的技术，应用在程序控制机械手、仪器、安装等方向，能够解决耗费时间等问题

Active Publication Date: 2015-02-11
AUTOMATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, stepping through all test positions and orientations is time consuming

Method used

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  • Active alignment using continuous motion sweeps and temporal interpolation
  • Active alignment using continuous motion sweeps and temporal interpolation
  • Active alignment using continuous motion sweeps and temporal interpolation

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Embodiment Construction

[0049] According to embodiments of the present invention, methods and apparatus are disclosed for actively aligning a first optical element, such as a lens, with a second optical element, such as an image sensor, using continuous scanning. During scanning, embodiments of the invention collect timed position information about the scanned optical element, and then estimate the position of the scanned optical element, such as by curve fitting for a set of position-time pairs relationship with time. This relationship can then be used to estimate the position of the scanned optical element at the time when image data or other alignment quality indicative data samples were acquired. From this comparison of the alignment quality with the position data, an optimal alignment position can be determined, and the scanned optical element can then be positioned at the determined alignment position.

[0050] Some embodiments utilize a synchronization signal from the image sensor circuitry t...

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Abstract

Methods and apparatus for actively aligning a first optical element, such as a lens, to a second optical element, such as an image sensor, use continuous scans, even absent a synchronization signal from one of the optical elements. During a scan, timed position information about the scanned optical element is collected, and then a relationship between position of the scanned optical element and time is estimated, such as by fitting a curve to a set of position-time pairs. This relationship can then be used to estimate locations of the scanned optical element at times when image data or other alignment quality-indicating data samples are acquired. From this alignment quality versus location data, an optimum alignment position can be determined, and the scanned optical element can then be positioned at the determined alignment position.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of US Provisional Patent Application No. 61 / 623,932, filed April 13, 2012, entitled "Active Alignment Using Continuous Motion Scanning and Temporal Interpolation." technical field [0003] The present invention relates to automatic robotic alignment of optical components during manufacturing or testing, and more particularly to apparatus and methods involving continuous motion scanning of optical components through possible alignment positions to optimize placement of optical components. Background technique [0004] Robots are used in many precision manufacturing processes. For example, robots are used to precisely align lenses in front of digital camera sensors, such as in the manufacture of cell phones and automobiles' backup cameras. In other examples, robots align the ends of optical fibers ahead of lasers or light sensors in the manufacture of telecommunications and computer ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/00G02B13/00G02B27/62
CPCG02B13/001G02B7/005Y10S901/47B25J9/1697G02B27/62
Inventor 安德烈·比
Owner AUTOMATION ENG