OPTICAL ELEMENT, SPECTROSCOPIC ELEMENT, OPTICAL UNIT AND OPTICAL DEVICE
First Claim
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1. An optical element comprising:
- a multilayer film which has a first transmittance characteristic in a first wavelength region, and has a second transmittance characteristic in a second wavelength region existing at the side where a wavelength is longer than that of the first wavelength region,wherein the multilayer film has a transmittance characteristic where a first peak with a maximum transmittance exists in the second wavelength region.
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Abstract
An optical element includes a multilayer film which has a first transmittance characteristic in a first wavelength region, and has a second transmittance characteristic in a second wavelength region existing at the side where a wavelength is longer than that of the first wavelength region. The multilayer film has a transmittance characteristic where a first peak with a maximum transmittance exists in the second wavelength region.
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9 Claims
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1. An optical element comprising:
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a multilayer film which has a first transmittance characteristic in a first wavelength region, and has a second transmittance characteristic in a second wavelength region existing at the side where a wavelength is longer than that of the first wavelength region, wherein the multilayer film has a transmittance characteristic where a first peak with a maximum transmittance exists in the second wavelength region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification