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US 12,071,528 B2Granted
Infrared transmissive product
AssigneeToyoda Gosei Co., Ltd.
InventorsYoshinori Yoshizawa, Shintaro Okawa, Hiroaki Ando, Seiichi Suzuki
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Abstract
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.
Claims5
An infrared transmissive product, comprising:
- a body configured to cover at least one of a transmitting unit and a receiving unit for infrared rays in an infrared sensor, wherein
- 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 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 of the coating film layer, and
- the aggregates have a particle size in a range from 100 nm to 300 nm.
6 more elements
Dependencies are inferred from the claim text.