PHOTOCATALYTIC FILTER, DEVICE THEREFOR AND TREATMENT OF LIQUID USING THE SAME

    公开(公告)号:JPH09225262A

    公开(公告)日:1997-09-02

    申请号:JP4138296

    申请日:1996-02-28

    Applicant: HOYA CORP

    Abstract: PROBLEM TO BE SOLVED: To obtain a photocatalytic filter capable of efficiently demonstrating the photocatalytic function by irradiating the photocatalyst directly with light from the inside of a light transmission body carrying the photocatalyst. SOLUTION: A fiber like material is formed as an optical fiber by carrying the photocatalyst 2 corresponding to a clad of an optical fiber on the surface of the light transmission body 1 corresponding to a core. And the light transmission body 1 is made of a material selected from glass, ceramic or the like. And as the photocatalyst 2, titanium oxide or its compound, iron oxide or its compound or the like is used. By irradiating directly the photocatalyst 2 with light from the inside of the light transmission body 1 in a photocatalyst fiber 11 composed of the light transmission body 1 carrying the photocatalyst 2 in this way, the light irradiation is efficiently executed and the photocatalytic reaction is accelerated.

    METHOD FOR PARTIAL COATING OF BASE MATERIAL

    公开(公告)号:JP2000005689A

    公开(公告)日:2000-01-11

    申请号:JP17243798

    申请日:1998-06-19

    Applicant: HOYA CORP

    Abstract: PROBLEM TO BE SOLVED: To provide a method for partial coating of a base material by which only a restricted range of the base material can be simply coated with a specified substance. SOLUTION: After a coating range is set on a base material 1 and temp. of the top end part of the coating range is elevated to a specified temp., a part below the coating range of the base material is immersed into a coating liq. to elevate the coating liq. by a surface tension worked between the base material and the coating liq. and elevation of the coating liq. is stopped at a specified position reaching the specified temp. on the base material 1.

    GAS TREATMENT APPARATUS AND GAS TREATMENT FILTER

    公开(公告)号:JPH11183728A

    公开(公告)日:1999-07-09

    申请号:JP35093997

    申请日:1997-12-19

    Applicant: HOYA CORP

    Abstract: PROBLEM TO BE SOLVED: To obtain a gas treatment apparatus and gas treatment filter which are capable of efficiently developing a photocatalytic reaction and are small in size and high in treatment capacity. SOLUTION: The gas treatment unit 1 has a multiplicity of photocatalytic fibers 3 held between metallic filters 2 as air permeable members in a bundled state. Photocatalytic fiber 3 is formed by depositing a photocatelyst having the refractive index higher than the refractive index of a fiber-like guide body having projections on the surface of the light guide body. The gas to be treated flows through the gaps of the many photocatalyst fibers 3 bundled between the metallic filters 2. On the other hand, the UV rays from a UV light 6 are cast to the end faces of the photocatalystic fibers 3 and leaks out to the photocatalyst on the surface of the light guide bodies while propagating in the photocatalytic fibers 3. At this time, the malodorous components, etc., included in the gas are brought into contact with the photocatalyst excited by the UV rays and are decomposed by the photocatalytic reaction.

    SURFACE COATING METHOD AND FILTER MATERIAL OBTAINED THEREBY

    公开(公告)号:JP2000005691A

    公开(公告)日:2000-01-11

    申请号:JP17194398

    申请日:1998-06-18

    Applicant: HOYA CORP

    Abstract: PROBLEM TO BE SOLVED: To efficiently manufacture a filter material through forming a homogenous coated layer on plural bases simultaneously by blowing air to the bases in such a state that a coating liquid containing a support component is present on the surface of the bases and desorbing the surplus coating liquid and at the same time, drying the coating liquid adhering to the bases. SOLUTION: In order to manufacture the filter material, first a plurality of glass fibers 3 as fibrous materials are accommodated in a jig 4 and a lid 5 is placed on the upper face of the jig 4 and at the same time, a metal plate 6 is arranged on the side face of the jig 4. Next the jig 4 is soaked in a coating liquid 8 containing an adhesive component and a photocatalytic substance which are stored in a container 7, and the coating liquid 8 is applied on the surface of the glass fiber 3. After that, the jig 4 is pulled up from the coating liquid 8 and air is blown off to the entire surface of the glass fiber 3 using an air blow-off device 9 before the pieces of the glass fiber 3 could adhere to each other. In this case, the surplus coating liquid 8 is desorbed by blowing off the air in a zigzag fashion and at the same time, the required coating liquid 8 is dried.

    IR TRANMISSION AND VISIBLE RAY REFLECTION TYPE MIRROR

    公开(公告)号:JPH06167604A

    公开(公告)日:1994-06-14

    申请号:JP32011392

    申请日:1992-11-30

    Abstract: PURPOSE:To provide a cold mirror having high reflectivity in a visible region and the low reflectivity in a near IR region with a small number of layers by using Si for a high-refractive index material and SiO2 or MgF2 for a low- refractive index material. CONSTITUTION:This cold mirror is constituted of a substrate such as optical glass which allows the transmission of IR rays, high-refractive index material Si film layers, and low-refractive index material SiO2 film layers. The high- refractive index material Si film layers and the low-refractive index material SiO2 film layers are alternately laminated. A combination of a large refractive index ratio is obtd. by using the high- and low-refractive index materials in such a manner. The multilayered optical films produced by such combination can be made wide in the width of their reflection band and high in their reflectivity in spite of the lamination of the small number of the layers. In addition, the reflection band of these multilayered optical films is made into a visible light region, by which the cold mirror having sufficient performance is obtd. The similar effect is obtainable even if the MgF2 is used in place of the SiO2 film layer as the low-refractive index material film layers.

    Method for producing filter raw material, method for producing photocatalytic filter raw material, photocatalytic filter, and photocatalytic filter device
    10.
    发明专利
    Method for producing filter raw material, method for producing photocatalytic filter raw material, photocatalytic filter, and photocatalytic filter device 有权
    生产过滤材料的方法,生产光催化过滤器原料的方法,光催化过滤器和光催化过滤装置

    公开(公告)号:JP2003071213A

    公开(公告)日:2003-03-11

    申请号:JP2002180155

    申请日:2002-06-20

    Abstract: PROBLEM TO BE SOLVED: To efficiently mass-produce homogeneous linear products to the peripheries of which lots of granules are adhered. SOLUTION: An adhesion method for making quartz glass balls 3 be adhered to the periphery of each of numbers of glass fibers has a pretreatment process for forming a mixture in which lots of quartz glass balls 3 exist among a plurality of glass fibers 1, and an adhesive 4 exists between the glass fiber 1 and the quartz glass ball 3 and an adhesive curing process for drying or curing the adhesive while the glass fibers 1 are moved relatively to each other by applying acceleration movement such as vibration and swinging to the mixture.

    Abstract translation: 要解决的问题:为了有效地大量生产均匀的线性产品到附着大量颗粒的周边。 解决方案:用于制造石英玻璃球3的粘合方法附着在每个数量的玻璃纤维的周围,具有用于形成多个玻璃纤维1之间存在大量石英玻璃球3的混合物的预处理工艺, 粘合剂4存在于玻璃纤维1和石英玻璃球3之间,并且通过施加诸如振动和摆动的加速度运动使玻璃纤维1彼此相对移动来干燥或固化粘合剂的粘合剂固化方法。

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