Optical processing apparatus, method for processing an object
AssigneeRicoh Company, Ltd.
InventorAsato Tamura
Life of this patent
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Abstract
An optical processing apparatus includes a light source, a condensing lens, and a light shield. The light source emits a light. The condensing lens converts a light emitted from the light source into a Bessel beam and condenses the light onto a surface of an object. The light shield shields an outer edge portion of the light in a cross section of a direction orthogonal to the optical axis of the light. The light shield may shield the outer edge portion of the light after entering the condensing lens and before condensing onto the surface of the object in the cross section of the direction orthogonal to the optical axis of the light.
Claims14
An optical processing apparatus comprising:
- a light source configured to emit light;
- a condensing lens configured to convert the light emitted from the light source into a Bessel beam and condense the light onto a surface of an object;
- and
- a light shield configured to shield an outer edge portion of the light in a cross section of a direction orthogonal to an optical axis of the light,
- wherein the light shield shields the outer edge portion and an interior portion of the light after entering the condensing lens and before condensing onto the surface of the object in the cross section of the direction orthogonal to the optical axis of the light.
A method for processing an object comprising:
- converting, with a condensing lens, a light emitted from a light source into a Bessel beam and condensing the light onto a surface of an object;
- and
- shielding, with a light shield, an outer edge portion of the light in a cross section of a direction orthogonal to an optical axis of the light,
- wherein the light shield shields the outer edge portion and an interior portion of the light after entering the condensing lens and before condensing onto the surface of the object in the cross section of the direction orthogonal to the optical axis of the light.
Dependencies are inferred from the claim text.