波長板Retardation Plate

１/２波長板は、可視域（４００－７００nm）対応品です。入射する光を１/２波長の位相差を生じさせます。θ°で入射した場合、直線偏光化された光線は出射時にも同じ角度で光源が再現されます。また１/４波長板は、可視域（４００－７００nm）において、直線偏光面のなる角度が４５°の場合、円偏光に変化させます。４５°以外の入射光は楕円偏光となります。
＊接合後の面精度については、λの保証は致しかねます。ご了承下さい。
Retardation Plates (1/2 and 1/4 Wave Plates) are elements primarily used in the synthesis and analysis of light in various states of polarization.
1/2 Wave Retardation Plate: The plane of polarization of the beam can be rotated at will without rotating the laser .The plane of polarization is essentially reflected in a plane containing the crystalline optic axis and the output plane rotates at twice the angle rate of the retarder.
1/4 Wave Retardation Plate: The transformation from linenarly to circularly
polarized light , which occures when the angle between the plane of linear polarization and the crystalline optic axis is exactly 45 degrees, is shown.For other angles the transformation is from linear to elliptical.