Structure and optical sensor
US-2019377111-A1 · Dec 12, 2019 · US
Infrared transmissive product
US11814495B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11814495-B2 |
| Application number | US-202017022434-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 16, 2020 |
| Priority date | Sep 30, 2019 |
| Publication date | Nov 14, 2023 |
| Grant date | Nov 14, 2023 |
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Abstract
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An infrared transmissive product includes a body. The body is configured to cover a transmitting unit and a receiving unit for infrared rays in an infrared sensor. The body includes a base made of a transparent plastic having an infrared transmissivity, and a coating film layer that is formed on a rear surface of the base in a transmission direction of infrared rays from the transmitting unit and has an infrared transmissivity. The coating film layer includes dispersed aggregates of particles of a pigment.
First claim
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What is claimed is: 1. An infrared transmissive product, comprising: a body configured to cover a transmitting unit and a receiving unit for infrared rays in an infrared sensor, wherein the body includes a base made of a plastic having an infrared transmissivity, and a coating film layer that is formed on a front surface of the base in a transmission direction of infrared rays from the transmitting unit and has an infrared transmissivity, the coating film layer is made of a material including a transparent plastic, the coating film layer includes dispersed aggregates of particles of a pigment, a primary particle size that is a particle size of each of the particles is less than or equal to 50 nm, 30 parts by mass or less of the aggregates is combined with 100 parts by mass of the transparent plastic, and the aggregates have a particle size in a range from 100 nm to 300 nm. 2. The infrared transmissive product according to claim 1 , wherein a metal oxide is used as the pigment. 3. The infrared transmissive product according to claim 1 , wherein a light transmissivity of the infrared transmissive product when a wavelength is 900 nm is 30% or higher, and an L value in a Lab color system of the infrared transmissive product is 30 or greater. 4. The infrared transmissive product according to claim 1 , wherein the primary particle size of each of the particles further is about 35 nm. 5. The infrared transmissive product according to claim 1 , further wherein about 7 parts by mass or more of the aggregates is combined with 100 parts by mass of the transparent plastic.
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- What does patent US11814495B2 cover?
- An infrared transmissive product includes a body. The body is configured to cover a transmitting unit and a receiving unit for infrared rays in an infrared sensor. The body includes a base made of a transparent plastic having an infrared transmissivity, and a coating film layer that is formed on a rear surface of the base in a transmission direction of infrared rays from the transmitting unit a…
- Who is the assignee on this patent?
- Toyoda Gosei Kk
- What technology area does this patent fall under?
- Primary CPC classification C08J7/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 14 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).