AIR FILTER, LIGHT SOURCE DEVICE, AND METHOD FOR MANUFACTURING AIR FILTER

To provide an air filter capable of securing mountability while achieving thinning, a light source capable of reducing the size, and a method for manufacturing the air filter.SOLUTION: An air filter 4 includes a first urethane part 20 which is formed of a polyurethane foam and has air permeability,...

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Hauptverfasser:	MAEJIMA KOJI, HAKAMADA YASUMASA, MATSUI RYOTARO, MURAYAMA KYOICHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	To provide an air filter capable of securing mountability while achieving thinning, a light source capable of reducing the size, and a method for manufacturing the air filter.SOLUTION: An air filter 4 includes a first urethane part 20 which is formed of a polyurethane foam and has air permeability, and a second urethane part 30 which is formed of a polyurethane foam and is arranged so as to overlap a part 26 of the first urethane part 20. A density of the second urethane part 30 is higher than a density of the first urethane part 20. The first urethane part 20 and the second urethane part 30 are integrated with each other in a state where the second urethane part 30 enters into the part 26 of the first urethane part 20.SELECTED DRAWING: Figure 4 【課題】薄型化を図りつつ取付性を確保することができるエアフィルタ、小型化を図ることができる光源装置、及び、そのようなエアフィルタの製造方法を提供する。【解決手段】エアフィルタ４は、ポリウレタン製の発泡体からなり、通気性を有する第１ウレタン部２０と、ポリウレタン製の発泡体からなり、第１ウレタン部２０の一部２６と重なるように配置された第２ウレタン部３０と、を備える。第２ウレタン部３０の密度は、第１ウレタン部２０の密度よりも高い。第１ウレタン部２０と第２ウレタン部３０とは、第１ウレタン部２０の一部２６に第２ウレタン部３０が入り込んだ状態で、互いに一体化されている。【選択図】図４