Black coating materials to inhibit internal reflection, black coating films to inhibit internal reflection and optical components.
Patent Information
- Application Number
- TH2001002531
- Authority / Receiving Office
- TH · TH
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-05-10
- Filing Date
- 2020-05-07
- Publication Date
- 2026-08-14
- Estimated Expiration
- 2040-05-06
Abstract
Claims
------31 / 07 / 2020------(OCR)1. A black coating for internal reflection inhibition comprising resin, binder, coal tar, dye, and solvent, where the coal tar contains 20 percent by mass or more of toluene-insoluble content.
2. A black coating for internal reflection inhibition according to claim 1, where the coal tar content is 20 percent by mass or more and 50 percent by mass or less based on the total solid content.
3. A black coating for internal reflection inhibition according to claim 1 or 2, where the dispersion level determined by particle gauge measurement is 5 micrometers or more and 50 micrometers or less.
4. A black coating for internal reflection inhibition according to any one of claims 1 through 3, where the dye has an absorption coefficient of 10 L / (g cm³) or more for light with a wavelength of 555 nanometers.5.Black coatings for internal reflection inhibition under any of the claims 1 to 4, which are further incorporated with fine silica particles at a packing volume of 3 percent by mass or more and 25 percent by mass or less, based on the total solid packing volume; 6. Black coating films for internal reflection inhibition, which are incorporated with: resin, binder, coal tar, tar, and dyes, where the coal tar contains a toluene-insoluble packing volume of 20 percent by mass or more; 7. Optical components incorporating black coating films for internal reflection inhibition under claim 6.