Invention Application
- Patent Title: WAVELENGTH CONVERSION FILM, LIGHT-EMITTING MEMBER, AUTHENTICATION DEVICE, WRISTBAND TYPE ELECTRONIC APPARATUS AND BIOMETRIC DEVICE
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Application No.: US17420631Application Date: 2020-01-16
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Publication No.: US20220082740A1Publication Date: 2022-03-17
- Inventor: Mio WATANABE , Kenichi TABATA , Ryo NAKABAYASHI , Yasuo MIYATA
- Applicant: Konica Minolta, Inc.
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta, Inc.
- Current Assignee: Konica Minolta, Inc.
- Current Assignee Address: JP Tokyo
- Priority: JP2019-005054 20190116
- International Application: PCT/JP2020/001313 WO 20200116
- Main IPC: G02B5/22
- IPC: G02B5/22 ; G06K9/00 ; G06F1/16 ; H01L51/50
Abstract:
Disclosed is a wavelength conversion film including at least two or more dyes and absorbing irradiation light to emit light at a longer wavelength than that of the irradiation light. The wavelength conversion film includes a first dye having a maximum absorption wavelength in a red light region, and a second dye absorbing excitation energy of the first dye to emit light in a near infrared region.
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