The KIF-PU is an interferometer system for analyzing the transmitted wavefront aberration of optical components. This system is optimal for evaluation of objective lenses or collimated lenses, particularly on the optical pickup production line.

1. Stable measurement maintained irrespective of difference in operators' skills
   Standard equipment with the auto-alignment mechanism with a piezoelectric drive stage and dedicated software reduces measurement variations due to alignment errors. This function demonstrates its performance in transmitted wavefront measurement of optical pickup lenses.

2. Available for measurement of 405nm-band and 650nm-band lenses
   This system is standard-equipped with two-wavelength light sources of 405nm and 658nm which can be switched in a simple operation, thereby allowing evaluation of optical components with either wavelength.

3. Capable of switching between linear and circular polarized light
   To measure a polarization-dependent test substance to be used for an optical pickup component, switching between linear and circular polarized light is needed. This system is optimal for transmitted wavefront measurement of birefringent components such as a plastic and crystal.

4. Compact and high-rigidity
   The compact and high-rigidity main unit takes up less space in view of the operating environments on the shop floor, thus supporting quick quality inspections.

5. Capable of OK/NG judgment
   The dedicated software allows easy OK/NG judgment on a production line with the OK/NG judgment setup function according to arbitrarily settable tolerances.