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US 2023/0417967 A1Published application
Optical filter, imaging apparatus, and optical filter manufacturing method
AssigneeNippon Sheet Glass Co., Ltd.
InventorsYuichiro KUBO, Katsuhide SHIMMO
Life of this patent
Estimating the term…
Abstract
An optical filter 1 includes a frame 10 and a light-absorbing film 20. The frame 10 has a through hole 12. The light-absorbing film 20 is disposed to close the through hole 12 and includes a light-absorbing compound. An average Young's modulus of the light-absorbing film 20 measured by continuous stiffness measurement is 2.5 GPa or less.
Claims14
An optical filter comprising:
- a frame having a through hole;
- and
- a light-absorbing film disposed to close the through hole, the light-absorbing film including a light-absorbing compound, wherein
- an average Young's modulus of the light-absorbing film measured by continuous stiffness measurement is 2.5 GPa or less.
1 more element
An optical filter manufacturing method, comprising:
- supplying a light-absorbing composition including a light-absorbing compound to close a through hole of a frame;
- and
- curing the light-absorbing composition to form a light-absorbing film, wherein
- an average Young's modulus of the light-absorbing film measured by continuous stiffness measurement is 2.5 GPa or less.
1 more element
Dependencies are inferred from the claim text.