Patent application number | Description | Published |
20080305254 | METHOD OF MANUFACTURING OPTICAL ELEMENT, AND OPTICAL ELEMENT - A method of manufacturing an optical element having a good reflection preventing characteristic is provided in which an irregularity structure having a reflection preventing function can be formed at low temperature. The method includes forming a film on the optical substrate by using a coating liquid containing a metal alkoxide containing at least aluminum, immersing the film in a water-containing liquid, baking the film having been immersed in the water-containing liquid, and subjecting the film having been baked to treatment with warm water to form an aluminum-containing film having a fine irregularity structure. | 12-11-2008 |
20090022954 | FILM AND ANTIREFLECTION FILM HAVING FINE IRREGULARITIES ON SURFACE, PRODUCTION METHOD FOR THE SAME, AND OPTICAL MEMBER USING THE SAME - A transparent antireflection film, including fine irregularities mainly composed of alumina, and a transparent thin film layer supporting the fine irregularities, in which the transparent thin film layer contains at least one selected from the group consisting of zirconia, silica, titania, and zinc oxide. A production method for the aforementioned transparent antireflection film, including: forming a multicomponent film using an application liquid containing at least one compound selected from the group consisting of a zirconium compound, a silicon compound, a titanium compound, and a zinc compound, and at least an aluminum compound; and subjecting the multicomponent film to warm water treatment. | 01-22-2009 |
20090081361 | OPTICAL TRANSPARENT MEMBER AND OPTICAL SYSTEM USING THE SAME - It is an object to provide an optical transparent member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base a layer containing SiO | 03-26-2009 |
20090280335 | METHOD OF MANUFACTURING OPTICAL ELEMENT, AND OPTICAL ELEMENT - A method of manufacturing an optical element having a good reflection preventing characteristic is provided in which an irregularity structure having a reflection preventing function can be formed at low temperature. The method includes forming a film on the optical substrate by using a coating liquid containing a metal alkoxide containing at least aluminum, immersing the film in a water-containing liquid, baking the film having been immersed in the water-containing liquid, and subjecting the film having been baked to treatment with warm water to form an aluminum-containing film having a fine irregularity structure. | 11-12-2009 |
20100255280 | OXIDE FILM, COATING SOLUTION FOR FORMING OXIDE FILM, OPTICAL MEMBER USING THE OXIDE FILM, AND METHOD OF PRODUCING THE OPTICAL MEMBER - Provided is an oxide film including an Si component, in which a relative intensity ratio B/A of an absorption peak intensity B at a wavenumber of 1,000 to 850 cm | 10-07-2010 |
20110189389 | OPTICAL TRANSPARENT MEMBER AND OPTICAL SYSTEM USING THE SAME - It is an object to provide an optical transparent member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base a layer containing SiO | 08-04-2011 |
20130003096 | IMAGING APPARATUS AND IMAGE FORMING APPARATUS - An imaging apparatus for imaging a subject image from a lens on an imaging element through an optical filter has a porous body having pores which three dimensionally communicate with each other at least at a side opposite to the imaging element of the optical filter. | 01-03-2013 |
20130045853 | METHOD OF PRODUCING POROUS GLASS - Provided is a method of producing a porous glass having a high strength by a safe, simple process that does not involve the use of any high-temperature heat treatment or acid treatment step. The method includes: mixing 4 wt % or more to 6.5 wt % or less of sodium oxide, 26 wt % or more to 36 wt % or less of boron oxide, and 60 wt % or more to 68 wt % or less of silicon oxide; heating the mixed materials to melt the materials and cooling the molten materials to obtain a glass body; and a step involving bringing the glass body into contact with water without reheating the glass body to obtain the porous glass. | 02-21-2013 |
20130067957 | METHOD OF PRODUCING GLASS - Provided a method of producing a glass having a silica skeleton with a phase-separated structure, particularly in the case of a phase-separated glass, by selectively removing a compositionally deviated layer on the surface of a phase-separated borosilicate glass. The method of producing a glass includes forming a glass body containing silicon oxide, boron oxide, and an alkali metal oxide; and bringing an alkaline aqueous solution having a viscosity of 5 mPa·s or more to 200 mPa·s or less into contact with a surface of the glass body. | 03-21-2013 |
20130068725 | METHOD OF PRODUCING POROUS GLASS - Provided is a method of producing a porous glass, including selectively etching a phase-separated glass with an acid solution, in which the method allows a processing time to be shortened and suppresses gel-like silica from remaining and being deposited in pores of a porous portion. The method of producing a porous glass includes: immersing the phase-separated glass in a bath containing an acid solution; setting an angle θ, which is formed by a surface to be porosified of the phase-separated glass and a bath liquid surface, to 10° or more to 90° or less; and irradiating the bath with an ultrasonic wave to etch the phase-separated glass, thereby obtaining the porous glass. | 03-21-2013 |
20130074548 | METHOD OF PRODUCING GLASS - Provided is a method of producing porous glass having pores with a uniform pore diameter entirely, particularly in the case of phase-separated glass, including selectively removing a denatured layer formed on the surface of glass easily. The method of producing glass includes: forming phase-separated glass containing silicon oxide, boron oxide, and an alkali metal oxide; bringing an alkaline solution held by a porous supporting member into contact with the denatured layer formed on the surface of the phase-separated glass to remove the denatured layer; and immersing the phase-separated glass with the denatured layer removed therefrom in an acid solution to form pores in the phase-separated glass. | 03-28-2013 |
20130157026 | POROUS GLASS AND OPTICAL MEMBER - The present invention provides a porous glass having excellent antireflection performance for visible light. A porous glass includes a porous layer which is mainly composed of silica and which has pores attributed to spinodal phase separation and pores attributed to binodal phase separation. | 06-20-2013 |
20130192306 | METHOD FOR PRODUCING POROUS GLASS - There is provided a method for producing a porous glass having high porosity and nanosized pores even at a deeper portion in the glass. | 08-01-2013 |
20130194483 | POROUS GLASS, METHOD FOR MANUFACTURING POROUS GLASS, OPTICAL MEMBER, AND IMAGE CAPTURE APPARATUS - A porous glass having high strength and a low refractive index, an optical member by using the porous glass, and a method for manufacturing the porous glass are provided. A method for manufacturing a porous glass includes the steps of heat-treating a glass body, which can be phase-separated through heating and which is formed from a plurality of components, at a first temperature to effect the phase separation, heat-treating the glass body, which has been heat-treated at the first temperature, at a second temperature, higher than the first temperature, to effect the phase separation, and bringing the glass body, which has been heat-treated at the second temperature, into contact with an aqueous solution, wherein the total time of the heat treatment time at the first temperature and the heat treatment time at the second temperature is 7 hours or more. | 08-01-2013 |
20130216775 | OPTICAL MEMBER AND IMAGING APPARATUS - Provided is an optical member having high strength, low reflection, and a high transmittance. The optical member includes: a transparent substrate; and a porous glass layer having a spinodal-type porous structure disposed on the transparent substrate, in which at least one of the average pore diameter of a pore formed in the porous glass layer and the average skeleton diameter of a skeleton of the porous glass layer is set so that the optical member has a transmittance of 50% or more in the wavelength region of 450 nm or more and 650 nm or less. | 08-22-2013 |
20130224494 | POROUS GLASS, METHOD OF MANUFACTURING THE SAME AND OPTICAL ELEMENT - This invention provides a porous glass with a varied porous structure that shows an excellent optical performance. A method of manufacturing a porous glass comprising: a first step of forming a surface layer containing a boron compound and an alkali metal compound as main ingredients on a matrix glass containing a silicon oxide, a boron oxide and an alkali metal oxide; a second step of heat treatment the matrix glass and the surface layer for phase separation to form a phase-separated glass; and a third step of acid treatment the phase-separated glass to form the porous glass having pores. | 08-29-2013 |
20130233018 | METHOD OF MANUFACTURING POROUS GLASS - To provide a method of manufacturing a porous glass in which the porosity decreases as a function of the distance from the surface in the direction of depth. A method of manufacturing a porous glass includes a step of bringing one or more than one ion species selected from silver ion, potassium ion and lithium ion into contact with a matrix glass containing borosilicate glass as main ingredient and heating the matrix glass to form a glass body having an ion concentration distribution with a concentration of the one or more than one ion species decreasing as a function of a distance from a surface in a direction of depth, a step of heating and phase-separating the glass body to form a phase-separated glass, and a step of etching the phase-separated glass to form a porous glass having a porosity decreasing as the function of the distance from the surface in the direction of depth. | 09-12-2013 |
20130333419 | METHOD FOR MANUFACTURING POROUS GLASS, AND METHOD FOR MANUFACTURING OPTICAL ELEMENT - A method for manufacturing a porous glass includes: forming a phase-separated glass by heating at a temperature in a range of 300 to 500 degrees Celsius for 3 to 50 hours for phase separation of a glass body in which the concentration of SiO | 12-19-2013 |
20140293114 | OPTICAL MEMBER, IMAGE PICKUP APPARATUS, AND METHOD FOR MANUFACTURING OPTICAL MEMBER - The present invention provides an optical member including a porous glass film on a base member, wherein a ripple is suppressed. | 10-02-2014 |
20140299573 | METHOD FOR MANUFACTURING OPTICAL MEMBER - The present invention provides a method for producing a porous glass layer easily, wherein a ripple is suppressed. | 10-09-2014 |
20140305166 | METHOD FOR MANUFACTURING OPTICAL MEMBER AND METHOD FOR MANUFACTURING IMAGE PICKUP APPARATUS - The present invention provides an optical member having a high transmittance, wherein a composition change of a phase-separable base material glass film is suppressed. | 10-16-2014 |
20140313391 | IMAGING APPARATUS AND IMAGE FORMING APPARATUS - An imaging apparatus for imaging a subject image from a lens on an imaging element through an optical filter has a porous body having pores which three dimensionally communicate with each other at least at a side opposite to the imaging element of the optical filter. | 10-23-2014 |
20140320728 | OPTICAL MEMBER, IMAGE PICKUP APPARATUS, AND METHOD FOR MANUFACTURING OPTICAL MEMBER - The present invention provides an optical member including a porous glass layer on the base member, wherein a ripple is suppressed. | 10-30-2014 |
20140335346 | OPTICAL MEMBER, IMAGE PICKUP APPARATUS, AND METHOD FOR MANUFACTURING OPTICAL MEMBER - To provide an optical member having a porous glass layer on a substrate and rarely causing ripples. | 11-13-2014 |