Patent ID: 6628065
Filing Date: 2003-09-30
Classification: G02B,H01J

Abstract:
An anti-reflection member including a light transmittable substrate and an anti-reflection film formed on said light transmittable substrate, said anti-reflection film comprising:a first film formed from a light transmittable material on a principal plane of said light transmittable substrate, said first film having a thickness set in a range of 70 nm or less; a second film formed from a light absorptive material having an electrical conductivity on said first film, said second film having a thickness set in a range of 30 nm or less in accordance with a specific transmittance of said anti-reflection film; a third film formed from a light transmittable material on said second film, said third film having an optical thickness in a range of about a Â¼-wavelength to a &frac18;-wavelength; a fourth film formed from a light absorptive material having an electrical conductivity on said third film, said fourth film having a thickness set in a range of 30 nm or less in accordance with said specific transmittance of said anti-reflection film; a fifth film formed from a light transmittable material having a high refractive index on said fourth film; and a sixth film formed from a light transmittable material on said fifth film, said sixth film having a refractive index smaller than that of each of said third film and said fifth film and also having an optical thickness which is about a Â¼-wavelength when a wavelength of incident light is about 550 nm.