Vehicle mirror

• US 10,859,745 B2
• Filed: 03/23/2018
• Issued: 12/08/2020
• Est. Priority Date: 09/30/2015
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Taguchi, Takao, Oki, Kazuhiro, Ichihashi, Mitsuyoshi
• Primary Examiner(s): Shafer, Ricky D
• Application Number:
  US15/933,590
• Publication Number:
  US 20180210124A1
• Time in Patent Office: 991 Days
• Field of Search: 35948907, 359833, 359883
• CPC Class Codes: B32B 17/10064 comprising at least two glass sheets, only one of which being an outer layer
• CPC Class Codes: B32B 17/10678 comprising UV absorbers or stabilizers, e.g. antioxidants
• CPC Class Codes: B32B 17/10743 containing acrylate (co)polymers or salts thereof
• CPC Class Codes: B60R 1/04 mounted inside vehicle B60R1/025, B60R1/08 take precedence
• CPC Class Codes: B60R 1/088 using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
• CPC Class Codes: C08J 5/18 Manufacture of films or sheets
• CPC Class Codes: G02B 5/08 Mirrors vehicle mirrors involving special optical features B60R1/08
• CPC Class Codes: G02B 5/0808 having a single reflecting layer G02B5/0883, G02B5/0891 take precedence
• CPC Class Codes: G02B 5/0825 the reflecting layers comprising dielectric materials only
• CPC Class Codes: G02B 5/26 Reflecting filters G02B5/28 takes precedence
• CPC Class Codes: G02B 5/28 Interference filters
• CPC Class Codes: G02B 5/30 Polarising elements light-modulating devices with active elements G02F1/00
• CPC Class Codes: G02B 5/3083 Birefringent or phase retarding elements G02B5/3008, G02B5/3016 take precedence; systems for polarisation control G02B27/286; manufacturing phase modulating patterns by lithographic processes G03F7/001

Abstract

The vehicle mirror includes a high-Re retardation film and a reflective layer. The high-Re retardation film has a front retardation of 5,000 nm or more, and the reflective layer is a reflective layer that is reflective in an unpolarized manner, such as a reflective metal layer. The vehicle mirror may be a vehicle mirror further including an image display device, wherein the high-Re retardation film, the reflective layer, and the image display device are disposed in this order, and the reflective layer is transflective.

Claims

1. A rear-view mirror of a vehicle comprising:

a high-Re retardation film; and

a reflective layer, the high-Re retardation film and the reflective layer being disposed in this order from a viewer side,

wherein the rear-view mirror is an internal mirror,

the high-Re retardation film has a front retardation of 5,000 nm or more,

the reflective layer is reflective in an unpolarized manner, and

the light reflectance of the reflective layer is at least 60% in terms of an average over an entire visible light region.

2. The rear-view mirror of the vehicle according to claim 1, wherein the reflective layer is a reflective metal layer or a dielectric multilayer film.

3. The rear-view mirror of the vehicle according to claim 2, wherein the reflective metal layer includes aluminum or silver.

4. The rear-view mirror of the vehicle according to claim 3, wherein the reflective metal layer is a vapor-deposited layer.

5. The rear-view mirror of the vehicle according to claim 4, wherein the reflective metal layer includes aluminum, and the high-Re retardation film includes polyethylene terephthalate.

6. The rear-view mirror of the vehicle according to claim 2, wherein the reflective metal layer includes aluminum.

7. The rear-view mirror of the vehicle according to claim 6, wherein the reflective metal layer is a vapor-deposited layer.

8. The rear-view mirror of the vehicle according to claim 7, wherein the reflective metal layer includes aluminum, and the high-Re retardation film includes polyethylene terephthalate.

9. The rear-view mirror of the vehicle according to claim 6, wherein the reflective metal layer includes aluminum, and the high-Re retardation film includes polyethylene terephthalate.

10. The rear-view mirror of the vehicle according to claim 2, wherein the reflective metal layer is a vapor-deposited layer.

11. The rear-view mirror of the vehicle according to claim 10, wherein the reflective metal layer includes aluminum, and the high-Re retardation film includes polyethylene terephthalate.

12. The rear-view mirror of the vehicle according to claim 2, wherein the reflective metal layer includes aluminum, and the high-Re retardation film includes polyethylene terephthalate.

13. The rear-view mirror of the vehicle according to claim 3, wherein the reflective metal layer includes aluminum, and the high-Re retardation film includes polyethylene terephthalate.

14. The rear-view mirror of the vehicle according to claim 1, wherein the front retardation is 7,000 nm or more.

15. The rear-view mirror of the vehicle according to claim 14, wherein the reflective metal layer includes aluminum, and the high-Re retardation film includes polyethylene terephthalate.

16. The rear-view mirror of the vehicle according to claim 1, wherein the high-Re retardation film is a polyester film.

17. The rear-view mirror of the vehicle according to claim 1, wherein the high-Re retardation film includes polyethylene terephthalate.

18. The rear-view mirror of the vehicle according to claim 1, wherein the reflective metal layer includes aluminum, and the high-Re retardation film includes polyethylene terephthalate.

19. The rear-view mirror of the vehicle according to claim 1, comprising a front panel,

wherein the front panel is a glass laminate including two glass plates and an interlayer between the two glass plates, and

the interlayer includes the high-Re retardation film.

20. The rear-view mirror of the vehicle according to claim 1, further comprising an image display device,

wherein the high-Re retardation film, the reflective layer, and the image display device are disposed in this order, and the reflective layer is transflective.

21. A vehicle comprising the rear-view mirror of the vehicle according to claim 1 and a rear window pane including tempered glass.