Method for manufacturing a diffractive optical element and apparatus for manufacturing a diffractive optical element
AssigneeAlphaLum SA
InventorsCarlos Macias, Robin Kaech, Frédéric Montfort, Jan Dedic
Life of this patent
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Abstract
An apparatus and method for manufacturing a diffractive optical element wherein the method includes providing a master of the diffractive optical element, wherein a layer of a recordation material covers the master, radiating the master with electromagnetic radiation of a reference beam, such that an object beam is generated, and recording an interference pattern of the electromagnetic radiation of the reference beam and an electromagnetic radiation of the object beam by the recordation material.
Claims15
A method for manufacturing a diffractive optical element, comprising the steps of:
- providing master of the diffractive optical element, wherein a layer of a recordation material covers the master,
- radiating the master with electromagnetic radiation of a reference beam, such that an object beam is generated, and
- recording an interference pattern of the electromagnetic radiation of the reference beam and an electromagnetic radiation of the object beam by the recordation material,
- wherein
- the diffractive optical element is a copy of the master.
An apparatus for manufacturing a diffractive optical element, comprising:
- a light source emitting electromagnetic radiation of a reference beam during operation,
- master covered with a layer of a recordation material,
- wherein, during operation:
- the master is radiated with the electromagnetic radiation of the reference beam, such that an object beam is generated, and
- an interference pattern of the electromagnetic radiation of the reference beam and the electromagnetic radiation of the object beam is recorded by the recordation material,
- the diffractive optical element is a copy of the master.
Dependencies are inferred from the claim text.