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PROBLEM TO BE SOLVED: To improve water repellency by a method in which the optical characteristics of a transparent member are kept, and the contact angle between the surface and a water droplet adherent to the surface is made greater than that between a conventional even surface and a water droplet...
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| creator | TOMOTA MASAOKI SUZUKI TETSUO |
| description | PROBLEM TO BE SOLVED: To improve water repellency by a method in which the optical characteristics of a transparent member are kept, and the contact angle between the surface and a water droplet adherent to the surface is made greater than that between a conventional even surface and a water droplet. SOLUTION: Unevenness 13 is formed on the surface of a substrate 11 by etching. Since a water repellent monomolecular membrane 15 is formed on the unevenness 13, the surface of the membrane 15 is made uneven. When a water droplet 17 is put on the surface 15a of the membrane 15, the contact area between the surface 15a and the droplet 17 is decreased to increase the contact area between the droplet 17 and the air. Therefore, the droplet 17 becomes spherical due to surface tension to increase the contact angle θ. In a comparative example, since the surface 100 of a lens is not etched, the contact area between the surface 100 and the droplet 17 is much greater than that of an example so that the contact angle θx is smaller than the contact angle θof the example. |
| format | Patent |
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SOLUTION: Unevenness 13 is formed on the surface of a substrate 11 by etching. Since a water repellent monomolecular membrane 15 is formed on the unevenness 13, the surface of the membrane 15 is made uneven. When a water droplet 17 is put on the surface 15a of the membrane 15, the contact area between the surface 15a and the droplet 17 is decreased to increase the contact area between the droplet 17 and the air. Therefore, the droplet 17 becomes spherical due to surface tension to increase the contact angle θ. In a comparative example, since the surface 100 of a lens is not etched, the contact area between the surface 100 and the droplet 17 is much greater than that of an example so that the contact angle θx is smaller than the contact angle θof the example.</description><edition>6</edition><language>eng</language><subject>ADHESIVES ; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; DYES ; GENERAL PROCESSES OF COMPOUNDING ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES ; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE ; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NANOTECHNOLOGY ; NATURAL RESINS ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAINTS ; PERFORMING OPERATIONS ; PHYSICS ; POLISHES ; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; WORKING-UP</subject><creationdate>1999</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19991124&DB=EPODOC&CC=JP&NR=H11320743A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19991124&DB=EPODOC&CC=JP&NR=H11320743A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TOMOTA MASAOKI</creatorcontrib><creatorcontrib>SUZUKI TETSUO</creatorcontrib><title>TRANSPARENT MEMBER</title><description>PROBLEM TO BE SOLVED: To improve water repellency by a method in which the optical characteristics of a transparent member are kept, and the contact angle between the surface and a water droplet adherent to the surface is made greater than that between a conventional even surface and a water droplet. 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SOLUTION: Unevenness 13 is formed on the surface of a substrate 11 by etching. Since a water repellent monomolecular membrane 15 is formed on the unevenness 13, the surface of the membrane 15 is made uneven. When a water droplet 17 is put on the surface 15a of the membrane 15, the contact area between the surface 15a and the droplet 17 is decreased to increase the contact area between the droplet 17 and the air. Therefore, the droplet 17 becomes spherical due to surface tension to increase the contact angle θ. In a comparative example, since the surface 100 of a lens is not etched, the contact area between the surface 100 and the droplet 17 is much greater than that of an example so that the contact angle θx is smaller than the contact angle θof the example.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON DYES GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NANOTECHNOLOGY NATURAL RESINS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS PHYSICS POLISHES SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP |
| title | TRANSPARENT MEMBER |
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