3D MEASUREMENT APPARATUS USING DIGITAL HOLOGRAPHY

摘要

A 3D measurement device using digital holography is provided to complement a demerit in measurement speed the existing on-axis method has and a demerit in lateral resolution, thereby satisfying the measurement speed and the lateral resolution. An optical source unit(10) emits light toward a light splitting unit(20). The optical source unit comprises a light source(11), a fixing member(13) and a light source polarizing plate(12). The light source emits laser light of short wavelength. A He-Ne laser is used as a light source. If laser light having short wavelength is emitted, another type laser can be applied.