Process for preparation of optical element, electrolytic solution used for the same and apparatus for preparation of optical element

• Main Author: SHIMIZU KEIJI,OTSU SHIGEMI,TANIDA KAZUTOSHI
• Format: Patent
• Language: English
• Published: 07.02.2007
• Subjects: ADHESIVES; APPARATUS THEREFOR; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; FILLING PASTES; FREQUENCY-CHANGING; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHYSICS; POLISHES; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; USE OF MATERIALS THEREFOR; WOODSTAINS

Disclosed herein are a process for easily preparing an optical element in a form of thin film which contains a functional material whose concentration changes gradationally in an in-plane direction and a thickness direction of a thin film, an electrolytic solution used for the process, and an apparatus for preparing an optical element. The process is designed to form an optical element on an optical element preparing substrate from an electrolytic solution containing a functional material by electrodeposition or photovoltaic electrodeposition. The process includes a step of changing concentration of the functional material in the electrolytic solution in the vicinity of the optical element preparing substrate, so that a resulting thin film changes gradationally in the concentration of the functional material in the in-plane direction and/or the thickness direction of the thin film.