A method for assessing the similarity between a power profile of a manufactured optic
device and a nominal power profile upon which the power profile of the manufactured optic …

(57) ABSTRACT A method for measuring the geometrical Structure of an optical component
(2) in transmission, comprises illuminat ing the optical component by means of a first …

A method and system are provided for determining mechanical stress experienced by a film
during fabrication thereof on a substrate positioned in a vacuum deposition chamber. The …

G02B27/4205—Diffraction optics, ie systems including a diffractive element being designed
for providing a diffractive effect having a diffractive optical element [DOE] contributing to …

Methods and systems for measuring asymmetric surface topology are described. In one
aspect, a method includes directing a test beam including a spherical wave front along an …

A system deposits a film on a substrate while determining mechanical stress experienced by
the film. A substrate is provided in a deposition chamber. A support disposed in the chamber …

Apparatus for indicating the departure of a shape of an object from a specified shape is
described. The apparatus includes a light source for directing an incident beam of radiation …

In view of the above, the present invention provides a measuring apparatus and a
measuring method to measure optical characteristics such as a Surface shape and a …

The present invention seeks to provide a non destructive, non-contact method and
apparatus for determin ing mold geometry. The present invention may also provide a non …

An apparatus for measuring the eccentricity of the aspherical surface has a light source unit;
a condenser lens condensing light rays in the proximity of the center of paraxial curvature of …