申请人:Nippon Shokubai Co., Ltd.
公开号:EP1375600A1
公开(公告)日:2004-01-02
A phthalocyanine compound (1) of a specific structure excelling in ability to absorb near infrared, ability to effect selective absorption of near infrared radiation particularly in a wavelength range exceeding 920 nm and falling short of 1050 nm, solubility in a solvent as well, compatibility with resin, and in such characteristic properties as heat resistance, light resistance, and weatherability, and a near infrared absorbing filter characterized by using the phthalocyanine compound (1) and phthalocyanine compound (2) having a maximum absorption wavelength at least in the range of 800 - 920 nm are provided. It enjoys a long service life and permits extensive use without selecting a substrate.
一种具有特殊结构的酞菁化合物(1),它在吸收近红外的能力、对近红外辐射的选择性吸收(特别是在波长超过920 nm、小于1050 nm的范围内)、在溶剂中的溶解性、与树脂的相容性、耐热性、耐光性和耐候性等特性方面表现出色、以及耐热性、耐光性和耐候性等特性,提供了一种近红外吸收滤光片,其特征在于使用了最大吸收波长至少在 800 - 920 nm 范围内的酞菁化合物 (1) 和酞菁化合物 (2)。该滤光片使用寿命长,无需选择基底即可广泛使用。