Distortion in a 2-D scan pattern generated by combining a plane mirror and a regular polygon scanner

Hradaynath, R.; Jaiswal, A. K.

doi:10.1364/ao.22.000615

Cited by 3 publications

(2 citation statements)

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“…Using 1D scanners, 2D systems (polygons plus galvos [26,27] or double galvos [28,29]), 3D systems (by example with a 1D galvo and a 2D Risley scanner [30]) and 4D (with time as the fourth dimension) scanners [31] have been developed, to comply with the most diverse requirements.…”

Section: Introductionmentioning

confidence: 99%

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Polygon mirror scanners in biomedical imaging: a review

Duma

Podoleanu

2013

SPIE Proceedings

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We review briefly the different applications of polygonal mirror (PM) scanning heads in biomedical imaging, with a focus on Optical Coherence Tomography (OCT). This overview of biomedical optical systems that employ PMs include: (i) TD (Time Domain) OCT setups, where PM may be utilized for generating the modulation function of the system without separate translation stages; (ii) FD (Fourier Domain) OCT delay line systems, with PM arrays; (iii) broadband laser sources scanned in frequency, for SS (Swept Source) OCT, with the PM placed in various optical configurations; (iv) OCM (Optical Coherence Microscopy) system with double PMs; (v) 2D PM plus galvanometer-based scanner (GS) for fast lateral scanning (not only in OCT, but also in confocal microscopy). We discuss SSs, for which the various PMbased setups used are compared, in their evolution -from on-axis to off-axis polygons -and in the race to obtain higher scan speeds to achieve real-time in vivo medical imaging. The parameters, advantages and drawbacks of these different configurations are pointed out. A necessary comparison is also made with the much faster Fabry-Perot (FP) based SSs. Our approach on PM-based broadband laser sources scanned in frequency, based on a simple off-axis polygon configuration, is also presented. Some of its characteristic mathematical functions are inferred and evaluated.

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Section: Introductionmentioning

confidence: 99%

“…The development of 2D PM plus GS scanning devices includes early works, with analytical studies of the scan patterns thus produced for different relative positioning of the PM and of the GS[26] -to obtain minimum dispersion of the scanned area in a certain plane. Raster scanning with such a PM plus GS system is convenient for a range of setups that…”

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confidence: 99%

Polygon mirror scanners in biomedical imaging: a review

Duma

Podoleanu

2013

SPIE Proceedings

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System design issues in laser projection displays

McMackin

Galhotra

et al. 2004

Novel Optical Systems Design and Optimization VII

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Comparisons of different 2-D laser beam scanners

Xiang¹,

Ih²

1985

Annual Meeting Optical Society of America

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For many scanning applications, the scan line straightness, linearity, and influence of mechanical wobble and eccentricity on a scanner's performance are important. Some different 2-D scanners are compared on a common specification of a total resolution of 6.25 million pixels. According to our analyses, the polygon-mirror system offers the best straightness but is the most sensitive to mechanical wobble and eccentricity.1 Different holographic 2-D scanners are also investigated, and their performances depends strongly on design parameters and on the configurations. The scan line straightness of the grating scanner’s system is comparable with that of a polygon mirror.2 The scan line linearity of the scanner with an auxiliary reflector3 is the best one. The simplicity and therefore the expected reliability of holographic scanners may influence people to prefer holographic scanners. However many technical problems remain to be solved before holographic scanners can be widely used.

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Distortion in a 2-D scan pattern generated by combining a plane mirror and a regular polygon scanner

Cited by 3 publications

References 0 publications

Polygon mirror scanners in biomedical imaging: a review

Polygon mirror scanners in biomedical imaging: a review

System design issues in laser projection displays

Comparisons of different 2-D laser beam scanners

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