Simple method for controlled variation of liquid crystal cell thickness

Eldad Bahat-Treidel; Boris Apter; Uzi Efron

doi:10.1117/1.1810143

Simple method for controlled variation of liquid crystal cell thickness

Eldad Bahat-Treidel, Boris Apter, Uzi Efron

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

3 Scopus citations

Abstract

A simple method of applying mechanical pressure to vary the cell thickness of a liquid crystal cell in a controlled, repeatable manner is presented. Experimental evaluation of several cells subjected to a controlled, mechanical point pressure show the capability of attaining a liquid crystal cell thickness range of 3 to 12μm, at an accuracy of 5%, within a 2- to 6-mm radius around the pressure point, for the 22×25-mm cells studied. Temporal stability tests show no measurable drift in the cell thickness for more than 120 h. The method offers the advantages of simplicity (avoiding the need of multiple liquid crystal cells), accuracy, repeatability, and temporal stability, as well as speedy change of the cell thickness.

Original language	English
Pages (from-to)	3021-3025
Number of pages	5
Journal	Optical Engineering
Volume	43
Issue number	12
DOIs	https://doi.org/10.1117/1.1810143
State	Published - 1 Dec 2004

Keywords

Cell gap thickness
Liquid crystal
Phase modulation
Retardation

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Engineering

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10.1117/1.1810143

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title = "Simple method for controlled variation of liquid crystal cell thickness",

abstract = "A simple method of applying mechanical pressure to vary the cell thickness of a liquid crystal cell in a controlled, repeatable manner is presented. Experimental evaluation of several cells subjected to a controlled, mechanical point pressure show the capability of attaining a liquid crystal cell thickness range of 3 to 12μm, at an accuracy of 5%, within a 2- to 6-mm radius around the pressure point, for the 22×25-mm cells studied. Temporal stability tests show no measurable drift in the cell thickness for more than 120 h. The method offers the advantages of simplicity (avoiding the need of multiple liquid crystal cells), accuracy, repeatability, and temporal stability, as well as speedy change of the cell thickness.",

keywords = "Cell gap thickness, Liquid crystal, Phase modulation, Retardation",

author = "Eldad Bahat-Treidel and Boris Apter and Uzi Efron",

note = "Funding Information: This work was supported in part by the Israel Science Foundation (ISF).",

year = "2004",

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T1 - Simple method for controlled variation of liquid crystal cell thickness

AU - Bahat-Treidel, Eldad

AU - Apter, Boris

AU - Efron, Uzi

N1 - Funding Information: This work was supported in part by the Israel Science Foundation (ISF).

PY - 2004/12/1

Y1 - 2004/12/1

N2 - A simple method of applying mechanical pressure to vary the cell thickness of a liquid crystal cell in a controlled, repeatable manner is presented. Experimental evaluation of several cells subjected to a controlled, mechanical point pressure show the capability of attaining a liquid crystal cell thickness range of 3 to 12μm, at an accuracy of 5%, within a 2- to 6-mm radius around the pressure point, for the 22×25-mm cells studied. Temporal stability tests show no measurable drift in the cell thickness for more than 120 h. The method offers the advantages of simplicity (avoiding the need of multiple liquid crystal cells), accuracy, repeatability, and temporal stability, as well as speedy change of the cell thickness.

AB - A simple method of applying mechanical pressure to vary the cell thickness of a liquid crystal cell in a controlled, repeatable manner is presented. Experimental evaluation of several cells subjected to a controlled, mechanical point pressure show the capability of attaining a liquid crystal cell thickness range of 3 to 12μm, at an accuracy of 5%, within a 2- to 6-mm radius around the pressure point, for the 22×25-mm cells studied. Temporal stability tests show no measurable drift in the cell thickness for more than 120 h. The method offers the advantages of simplicity (avoiding the need of multiple liquid crystal cells), accuracy, repeatability, and temporal stability, as well as speedy change of the cell thickness.

KW - Cell gap thickness

KW - Liquid crystal

KW - Phase modulation

KW - Retardation

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JO - Optical Engineering

JF - Optical Engineering

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Simple method for controlled variation of liquid crystal cell thickness

Abstract

Keywords

ASJC Scopus subject areas

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