Optical device, optical apparatus, and method for manufacturing optical device
AssigneeAsahi Glass Company, Limited
InventorKensuke ONO
Life of this patent
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Abstract
An optical device for monotonously reducing light transmittance from a center portion thereof to a peripheral portion thereof. The optical device includes an absorbing material part formed of a material that can absorb light and having a thickness monotonously increasing from the center portion to the peripheral portion, and a transparent material part formed of a material that can transmit light and stacked on the absorbing material part. A value of a refractive index of the absorbing material part and a value of a refractive index of the transparent material part are different.
Claims17
An optical device for monotonously reducing light transmittance from a center portion thereof to a peripheral portion thereof, the optical device comprising:
- an absorbing material part formed of a material that can absorb light and having a thickness monotonously increasing from the center portion to the peripheral portion;
- and
- a transparent material part formed of a material that can transmit light and stacked on the absorbing material part;
- wherein a value of a refractive index of the absorbing material part and a value of a refractive index of the transparent material part are different.
A method for manufacturing an optical device, comprising the steps of:
- forming an absorbing material part including a concave part by applying a droplet of a light absorbing resin in a mold having a convex-shaped center portion and curing the light absorbing resin;
- and
- forming a transparent material part in the concave part by applying a droplet of a transparent resin to the concave part and curing the transparent resin;
- wherein the absorbing material part and the transparent material part are formed of a photo-polymerizable organic material or a thermally polymerizable organic material, and
- wherein a refractive index of the transparent material part is higher than a refractive index of the absorbing material part.
A method for manufacturing an optical device, comprising the steps of:
- forming a transparent material part by applying a droplet of a transparent resin in a mold having a concave-shaped center portion and curing the transparent resin;
- and
- forming an absorbing material part by applying a droplet of a light absorbing resin onto the transparent material part and curing the light absorbing resin;
- wherein the absorbing material part and the transparent material part are formed of a photo-polymerizable organic material or a thermally polymerizable organic material, and
- wherein a refractive index of the transparent material part is lower than a refractive index of the absorbing material part.
Dependencies are inferred from the claim text.