Title:
FILM-EQUIPPED BASE MATERIAL AND MANUFACTURING METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2023/008123
Kind Code:
A1
Abstract:
Provided is a film-equipped base material that can effectively increase infrared transmittance when used in an infrared-transmitting lens. The film-equipped base material 1 has a multilayer film 3 provided on a base material 2. The multilayer film 3 comprises: a first layer 4, which is a tightly adhering layer provided on a main surface 2a of the base material 2; a second layer 5 having, provided on the first layer 4, a low refractive index film 7 having a relatively low refractive index and a high refractive index film 8 having a relatively high refractive index; and a third layer 6, which is an outermost layer provided on the second layer 5. The low refractive index film 7 is constituted from at least one of YF3 and YbF3, and the high refractive index film 8 is constituted from Ge.
Inventors:
YAMAGUCHI YOSHIMASA (JP)
Application Number:
PCT/JP2022/026833
Publication Date:
February 02, 2023
Filing Date:
July 06, 2022
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
G02B1/115; C23C14/06; C23C14/14; G02B5/26; G02B5/28
Domestic Patent References:
| WO2021112144A1 | 2021-06-10 |
Foreign References:
| JP2008268277A | 2008-11-06 | |||
| JPH11281801A | 1999-10-15 | |||
| JP2009086533A | 2009-04-23 | |||
| JP2003149406A | 2003-05-21 | |||
| JPS6415703A | 1989-01-19 | |||
| JP2017151408A | 2017-08-31 | |||
| JP2020516941A | 2020-06-11 | |||
| JP2021081878A | 2021-05-27 | |||
| JP2017214607A | 2017-12-07 | |||
| JP2010103405A | 2010-05-06 |
Attorney, Agent or Firm:
OSAKA FRONT (JP)
Download PDF: