| 摘要 |
<P>PROBLEM TO BE SOLVED: To dissolve problems in which when a user wears a spectacle lens, reflection of an image occurs by light made incident at some degree of incident angle from backward and in which an antireflection film having such small total number of components that the antireflection film can be film-formed on the spectacle lens lowers in its antireflection characteristic when the incident angle derives from a designed angle, thereby when strong light is made incident thereon, especially a large amount of reflected light enters an eyeball, then, the user feels as if the reflection of the image occurs on a lens surface, which interrupts a visual field. <P>SOLUTION: The spectacle lens has a reflectivity of ≤1.0% within the wavelength range of 420 nm to 720 nm for light having an incident angle of 0° and light having an incident angle of 15° to 30°. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
