| 摘要 |
<p>Disclosed is a thin achromatizing lens with high chromatic aberration correction capability. The achromatizing lens comprises at least a first substrate (L11), a second substrate (L12) joined to the first substrate (L11), a third substrate (L13) joined to the second substrate (L12) on the side opposite to the first substrate (L11), and a transparent fourth substrate (L14) joined to the third substrate (L13) on the side opposite to the second substrate (L12), wherein the second substrate (L12) is a positive lens and the third substrate (L13) is a negative lens, the refractive indices of the first substrate (L11) and the second substrate (L12) are different for at least one wavelength, the Abbe numbers of the second substrate (L12) and the third substrate (L13) are different, the refractive indices of the third substrate (L13) and the fourth substrate (L14) are different for at least one wavelength, and the second substrate (L12) and the third substrate (L13) are an energy-curable resin.</p> |
