Patent ID: 6301005
Filing Date: 2001-10-09
Classification: G01M

Abstract:
A system for producing a high contrast bright field image of features of an ocular optical component under inspection, comprising:a) image sensing means, having a detector and an entrance pupil for sensing light focused through the ocular optical component under inspection;b) means for focussing light through the ocular optical component, wherein the image sensing means has an optical axis which is optically aligned with an optical axis of the means for focussing light and an optical axis of the ocular optical component such that the optical axes of each are substantially coaxial; andc) a source of light,d) said light focusing means focusing light through the ocular optical component under inspection, thereby producing a high contrast bright field image of the features of the ocular optical component;e) wherein the ocular optical component is contained within a cuvette having a transparent bottom portion, the cuvette's bottom portion comprising a convex outer surface and an adjacent concave inner surface, wherein the geometry of the outer surface is selected so that the image of the light which has been focused substantially fills the entrance pupil of the image sensing means.