To provide an optical element having an excellent anti-reflection function.
The optical element having an anti-reflection function includes: a base having a first main surface and a second main surface; a plurality of structures composed of projections or recesses and arranged on the first main surface at a fine pitch equal to or less than the wavelength of visible light for which the amount of reflection is to be reduced, and a light-absorbing layer that is disposed on the second main surface, wherein the structures are arranged so as to form a plurality of rows of tracks on the first main surface and form a hexagonal lattice pattern, a quasi-hexagonal lattice pattern, a tetragonal lattice pattern, or a quasi-tetragonal lattice pattern, and the structures each has an elliptical cone shape or a truncated elliptical cone shape, the major axis direction of which is a direction in which the tracks extend.
HAYASHIBE KAZUYA
JP2008165207A | 2008-07-17 | |||
JPH0336024A | 1991-02-15 | |||
JP2008304637A | 2008-12-18 | |||
JP2009122216A | 2009-06-04 | |||
JP2008070708A | 2008-03-27 | |||
JP2007528021A | 2007-10-04 |
WO2008023816A1 | 2008-02-28 | |||
WO2008102487A1 | 2008-08-28 |