Optical component, optical element, and manufacturing method of optical component
AssigneeCanon Kabushiki Kaisha
InventorsTOMOYUKI AOYAGI, MASATSUGU KOYAMA
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Abstract
An optical component made of a solid material that transmits light of a used wavelength includes a diffraction grating and a plurality of lenses. The diffraction grating includes a plurality of grooves that extend in a second direction, and disposed on a first optical surface of the optical component on which the light of the used wavelength is incident. The plurality of lenses are arranged in the second direction and provided on a second optical surface of the optical component from which the light of the used wavelength incident from the first optical surface is emitted.
Claims16
An optical component made of a solid material that transmits light of a used wavelength, the optical component comprising:
- a diffraction grating including a plurality of grooves that extend in a second direction, and disposed on a first optical surface of the optical component on which the light of the used wavelength is incident;
- and
- a plurality of lenses arranged in the second direction and provided on a second optical surface of the optical component from which the light of the used wavelength incident from the first optical surface is emitted.
A manufacturing method of an optical component, the manufacturing method comprising:
- a step of preparing a base material made of a solid material that transmits light of a used wavelength;
- a step of forming a plurality of grooves, the plurality of grooves being arranged in a longitudinal direction of the base material on a first surface of the base material;
- a step of forming a plurality of lenses, the plurality of lenses being arranged in the longitudinal direction of the base material on a second surface opposite to the first surface;
- and
- a step of forming a light scattering portion, the light scattering portion extending in a traverse direction of the base material and having a surface roughness higher than a surface roughness of optical surface of the plurality of lenses at a boundary portion between adjacent lenses among the plurality of lenses.
Dependencies are inferred from the claim text.