Heat-resistant liquid crystal light modulator containing polymer network for high-power luminaires

Hideo Fujikake; Yoshiaki Tanaka; Saburo Kimura; Hisashi Asakawa; Takemi Tamura; Hiroshi Kita; Kiyofumi Takeuchi; Hiroshi Ogawa; Akio Nagashima; Yozo Utsumi; Kuniharu Takizawa

doi:10.1143/jjap.39.5870

Heat-resistant liquid crystal light modulator containing polymer network for high-power luminaires

Hideo Fujikake, Yoshiaki Tanaka, Saburo Kimura, Hisashi Asakawa, Takemi Tamura, Hiroshi Kita, Kiyofumi Takeuchi, Hiroshi Ogawa, Akio Nagashima, Yozo Utsumi, Kuniharu Takizawa

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

7 Citations (Scopus)

Abstract

This paper describes a heat-resistant liquid crystal light modulator, which contains a 20-μm-thick polymer-dispersed liquid crystal film comprising tolane nematic liquid crystal with a high nematic-isotropic phase-transition temperature of 160°C and a three-dimensional fine polymer network of polyacrylate formed by means of photopolymerization-induced phase separation. The light modulator with an electrically controlled light scattering function can operate in the wide temperature range from room temperature to 120°C with excellent thermal stability. A new light-controllable spot luminaire system using the light modulator and a 575 W high-intensity metal halide lamp is also demonstrated with a high extinction ratio of more than 100 for illumination of television studios and stages.

Original language	English
Pages (from-to)	5870-5874
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	39
Issue number	10
DOIs	https://doi.org/10.1143/jjap.39.5870
Publication status	Published - 2000 Oct
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Fujikake, H., Tanaka, Y., Kimura, S., Asakawa, H., Tamura, T., Kita, H., Takeuchi, K., Ogawa, H., Nagashima, A., Utsumi, Y., & Takizawa, K. (2000). Heat-resistant liquid crystal light modulator containing polymer network for high-power luminaires. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 39(10), 5870-5874. https://doi.org/10.1143/jjap.39.5870

Heat-resistant liquid crystal light modulator containing polymer network for high-power luminaires. / Fujikake, Hideo; Tanaka, Yoshiaki; Kimura, Saburo; Asakawa, Hisashi; Tamura, Takemi; Kita, Hiroshi; Takeuchi, Kiyofumi; Ogawa, Hiroshi; Nagashima, Akio; Utsumi, Yozo; Takizawa, Kuniharu.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 39, No. 10, 10.2000, p. 5870-5874.

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

Fujikake, H, Tanaka, Y, Kimura, S, Asakawa, H, Tamura, T, Kita, H, Takeuchi, K, Ogawa, H, Nagashima, A, Utsumi, Y & Takizawa, K 2000, 'Heat-resistant liquid crystal light modulator containing polymer network for high-power luminaires', Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, vol. 39, no. 10, pp. 5870-5874. https://doi.org/10.1143/jjap.39.5870

Fujikake, Hideo ; Tanaka, Yoshiaki ; Kimura, Saburo ; Asakawa, Hisashi ; Tamura, Takemi ; Kita, Hiroshi ; Takeuchi, Kiyofumi ; Ogawa, Hiroshi ; Nagashima, Akio ; Utsumi, Yozo ; Takizawa, Kuniharu. / Heat-resistant liquid crystal light modulator containing polymer network for high-power luminaires. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2000 ; Vol. 39, No. 10. pp. 5870-5874.

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