US 6,078,392 A · Direct-to-digital holography and holovision

Abstract

Systems and methods for direct-to-digital holography are described. An apparatus includes a laser; a beamsplitter optically coupled to the laser; a reference beam mirror optically coupled to the beamsplitter; an object optically coupled to the beamsplitter, a focusing lens optically coupled to both the reference beam mirror and the object; and a digital recorder optically coupled to the focusing lens. A reference beam is incident upon the reference beam mirror at a non-normal angle, and the reference beam and an object beam are focused by the focusing lens at a focal plane of the digital recorder to form an image. The systems and methods provide advantages in that computer assisted holographic measurements can be made.

Claims20

Dependent claims

An apparatus to record an off-axis hologram, comprising:

a laser;
a beamsplitter optically coupled to said laser;
a reference beam mirror optically coupled to said beamsplitter;
an object optically coupled to said beamsplitter, a focusing lens optically coupled to both said reference beam mirror and said object;
and a digital recorder optically coupled to said focusing lens,
wherein a reference beam is incident upon said reference beam mirror at a non-normal angle, said reference beam and an object beam are focused by said focusing lens at a focal plane of said digital recorder to form an off-axis hologram, and said object beam and said reference beam constitute a plurality of simultaneous reference and object waves.

3 more elements

Dependencies are inferred from the claim text.

Direct-to-digital holography and holovision

Life of this patent

Direct-to-digital holography and holovision

Life of this patent

Abstract

Claims20