Automatic alignment of optical system using shape memory alloy

Minoru Sasaki; Yuji Arai; Kazuhiro Hane

doi:10.1007/s10043-997-0584-1

Automatic alignment of optical system using shape memory alloy

Minoru Sasaki, Yuji Arai, Kazuhiro Hane

ENG - Finemechanics

Research output: Contribution to journal › Article › peer-review

Abstract

Properties of the shape memory alloy of 29 μm thick Ni-Ti foil are investigated as an actuator to align optical elements. Since the intrinsic properties of the Ni-Ti foil are not satisfactory in reproducibility and hysteresis, a simple feedback control is used. A pinhole integrated with a surrounding position sensor is proposed to realize a confocal optical system having an automatic alignment function. Large displacement (∼mm) and precision at the level of the optical wavelength are found to be possible.

Original language	English
Pages (from-to)	584-587
Number of pages	4
Journal	Optical Review
Volume	4
Issue number	5
DOIs	https://doi.org/10.1007/s10043-997-0584-1
Publication status	Published - 1997 Jan 1

Keywords

Alignment
Feedback control
Ni-Ti
Photodetector
Pinhole
Shape memory alloy
Two way shape memory effect

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1007/s10043-997-0584-1

Cite this

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title = "Automatic alignment of optical system using shape memory alloy",

abstract = "Properties of the shape memory alloy of 29 μm thick Ni-Ti foil are investigated as an actuator to align optical elements. Since the intrinsic properties of the Ni-Ti foil are not satisfactory in reproducibility and hysteresis, a simple feedback control is used. A pinhole integrated with a surrounding position sensor is proposed to realize a confocal optical system having an automatic alignment function. Large displacement (∼mm) and precision at the level of the optical wavelength are found to be possible.",

keywords = "Alignment, Feedback control, Ni-Ti, Photodetector, Pinhole, Shape memory alloy, Two way shape memory effect",

author = "Minoru Sasaki and Yuji Arai and Kazuhiro Hane",

year = "1997",

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doi = "10.1007/s10043-997-0584-1",

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TY - JOUR

T1 - Automatic alignment of optical system using shape memory alloy

AU - Sasaki, Minoru

AU - Arai, Yuji

AU - Hane, Kazuhiro

PY - 1997/1/1

Y1 - 1997/1/1

N2 - Properties of the shape memory alloy of 29 μm thick Ni-Ti foil are investigated as an actuator to align optical elements. Since the intrinsic properties of the Ni-Ti foil are not satisfactory in reproducibility and hysteresis, a simple feedback control is used. A pinhole integrated with a surrounding position sensor is proposed to realize a confocal optical system having an automatic alignment function. Large displacement (∼mm) and precision at the level of the optical wavelength are found to be possible.

AB - Properties of the shape memory alloy of 29 μm thick Ni-Ti foil are investigated as an actuator to align optical elements. Since the intrinsic properties of the Ni-Ti foil are not satisfactory in reproducibility and hysteresis, a simple feedback control is used. A pinhole integrated with a surrounding position sensor is proposed to realize a confocal optical system having an automatic alignment function. Large displacement (∼mm) and precision at the level of the optical wavelength are found to be possible.

KW - Alignment

KW - Feedback control

KW - Ni-Ti

KW - Photodetector

KW - Pinhole

KW - Shape memory alloy

KW - Two way shape memory effect

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SN - 1340-6000

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SP - 584

EP - 587

JO - Optical Review

JF - Optical Review

IS - 5

ER -

Automatic alignment of optical system using shape memory alloy

Abstract

Keywords

ASJC Scopus subject areas

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