Optical lens device with chroma enhancement
AssigneeForesight Optical Ltd.
InventorsTien-Shu Wu, Yen-Ting Wu
Life of this patent
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Abstract
An optical lens device includes a lens body, an optical filter and an optical absorbance portion. The lens body has a first lens surface and a second lens surface between which to form the optical filter where is to provide the optical absorbance portion. The optical absorbance portion includes a first main absorbance area having a first absorbance peak portion and a second main absorbance area having a second absorbance peak portion. The first main absorbance area has a first wavelength range between 420 nm and 440 nm formed as a high-energy blue UV absorbance area while the second main absorbance area has a second wavelength range between 580 nm and 610 nm.
Claims20
An optical lens device comprising:
- a lens body having a first lens surface and a second lens surface, with the first lens surface provided at a first side of the lens body, with the second lens surface provided at a second side of the lens body;
- an optical filter provided between the first side and the second side of the lens body;
- and
- an optical absorbance portion provided in the optical filter, with the optical absorbance portion having a first main absorbance area with a first absorbance peak portion and a second main absorbance area with a second absorbance peak portion;
- wherein the first main absorbance area has a first wavelength range between 420 nm and 440 nm formed as a high-energy blue UV absorbance area, with said first main absorbance area having a first maximum absorbance with a wavelength about 432 nm, while the second main absorbance area has a second wavelength range between 580 nm and 610 nm.
An optical lens device comprising:
- a lens body having a first lens surface and a second lens surface, with the first lens surface provided at a first side of the lens body, with the second lens surface provided at a second side of the lens body;
- an optical filter provided between the first side and the second side of the lens body;
- and
- an optical absorbance portion provided in the optical filter, with the optical absorbance portion having a first main absorbance area with a first absorbance peak portion and a second main absorbance area with a second absorbance peak portion;
- wherein the first absorbance peak portion has a first wavelength ranging between 420 nm and 440 nm, with the first main absorbance area formed as a high-energy blue UV absorbance area while the second main absorbance area has a second wavelength range between 580 nm and 610 nm, with said second main absorbance area having a second maximum absorbance with a wavelength about 595 nm.
An optical lens device comprising:
- a lens body having a first lens surface and a second lens surface, with the first lens surface provided at a first side of the lens body, with the second lens surface provided at a second side of the lens body;
- an optical filter provided between the first side and the second side of the lens body;
- and
- an optical absorbance portion provided in the optical filter, with the optical absorbance portion having a first main absorbance area with a first absorbance peak portion and a second main absorbance area with a second absorbance peak portion;
- wherein the first main absorbance area has a first wavelength range between 420 nm and 440 nm formed as a high-energy blue UV absorbance area, with said first main absorbance area having a first maximum absorbance with a wavelength about 432 nm, while the second absorbance peak portion has a second wavelength ranging between 580 nm and 610 nm.
Dependencies are inferred from the claim text.