Title:
OPTICAL CONTROL METHOD AND OPTICAL CONTROLLER
Document Type and Number:
WIPO Patent Application WO/1997/030372
Kind Code:
A1
Abstract:
A method of, and an apparatus for, extracting with high reproducibility a photo response having sufficient magnitude and sufficient speed from a photo responsive optical element. Control light is emitted from a light source (1) and signal light is emitted from a light source (2). These control light and signal light are converged by a condenser lens (7) and are applied to an optical device (8) to which a photo responsive composition is packed. Only signal light (22) is detected by an optical detector (22) through a light reception lens (9) and a wavelength selection filter (20). A transmittance and/or refractive index reversibly increases or decreases in accordance with ON/OFF of signal light, and intensity modulation of signal light is accomplished. Because the numerical aperture of the light reception lens is set to be substantially smaller than that of the condenser lens, photo response having sufficient magnitude and sufficient speed can be extracted from the optical device comprising a photo responsive composition containing a pigment.
Inventors:
TANAKA NORIO (JP)
TAKARADA SHIGERU (JP)
YANAGIMOTO HIROMITSU (JP)
KAI MASAKATSU (JP)
UENO ICHIRO (JP)
TAKARADA SHIGERU (JP)
YANAGIMOTO HIROMITSU (JP)
KAI MASAKATSU (JP)
UENO ICHIRO (JP)
Application Number:
PCT/JP1996/002687
Publication Date:
August 21, 1997
Filing Date:
September 18, 1996
Export Citation:
Assignee:
DAINICHISEIKA COLOR CHEM (JP)
VICTOR COMPANY OF JAPAN (JP)
TANAKA NORIO (JP)
TAKARADA SHIGERU (JP)
YANAGIMOTO HIROMITSU (JP)
KAI MASAKATSU (JP)
UENO ICHIRO (JP)
VICTOR COMPANY OF JAPAN (JP)
TANAKA NORIO (JP)
TAKARADA SHIGERU (JP)
YANAGIMOTO HIROMITSU (JP)
KAI MASAKATSU (JP)
UENO ICHIRO (JP)
International Classes:
G02F1/01; G02F2/00; (IPC1-7): G02F1/01; C09B47/00; C09B47/12; C09B47/18; C09B47/20; G02F1/17; G02F1/35
Foreign References:
| JPS61129621A | 1986-06-17 |
Other References:
APPL. PHYS. B., Vol. 54, No. 1, 1992, T.H. WEI et al., "Direct Measurements of Nonlinear Absorption and Refraction in Solutions of Phthalocyanines", pages 46-51.
SPRINGER SER. CHEM. PHYS., Vol. 53, 1990, M.M. MARTIN et al., "Fast Change in the Excited State Adsorption Spectrum of TPM Dye Solutions", pages 504-506.
OPT. COMMUN., Vol. 51, No. 2, 1984, F. GRAF A. PENZKOFER, "Excited State Absorption Dynamics of Fast Relaxing Dye No. 5", pages 111-116.
See also references of EP 0881518A4
SPRINGER SER. CHEM. PHYS., Vol. 53, 1990, M.M. MARTIN et al., "Fast Change in the Excited State Adsorption Spectrum of TPM Dye Solutions", pages 504-506.
OPT. COMMUN., Vol. 51, No. 2, 1984, F. GRAF A. PENZKOFER, "Excited State Absorption Dynamics of Fast Relaxing Dye No. 5", pages 111-116.
See also references of EP 0881518A4
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