Spectacle lens and spectacle

• US 7,926,939 B2
• Filed: 06/18/2008
• Issued: 04/19/2011
• Est. Priority Date: 12/28/2005
• Status: Active Grant

• Current Assignee: Tokai Optical Co., Ltd.
• Original Assignee: Tokai Optical Co., Ltd.
• Inventors: Shoji, Hidenori, Kato, Yuji, Fukagawa, Tsuyoshi
• Primary Examiner(s): Sugarman; Scott J
• Application Number:
  US12/141,330
• Publication Number:
  US 20080284976A1
• Time in Patent Office: 1,035 Days
• Field of Search: 351/44, 351/163, 351/164, 351/165
• US Class Current: 351/163
• CPC Class Codes: G02B 1/115 Multilayers
• CPC Class Codes: G02C 7/02 Lenses; Lens systems ; Methods of designing lenses
• CPC Class Codes: G02C 7/10 Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses

Abstract

A spectacle lens is provided with a lens base material and an antireflection film provided on the lens base material (an inner surface and an outer surface seen from a spectacle wearing person). The lens base material is colored with a dye. The antireflection film (antireflection coating layer) is formed by a vapor deposition method such that it slightly reflects incident light in the same color as that presented by the lens base material and transmits all of the remainder. The same color as referred to herein means that the chromaticity coordinate values are equal to each other.

Claims

1. A spectacle lens, which is characterized in that a lens base material is colored with a color within a range of a quadrilateral surrounded by a straight line group of the following equations on an XYZ color system chromaticity diagram of the CIE color system:

y=1.151x−

0.012

y=1.151x+0.007

y=−

2.800x+1.181

y=−

2.800x+1.548

and

that reflected light by an antireflection film presents a color within a range of a quadrilateral surrounded by a straight line group of the following equations on the XYZ color system chromaticity diagram;

y=0.720x+0.095

y=0.720x+0.164

y=−

2.750x+1.205

y=−

2.750x+1.639.

2. A spectacle having the spectacle lens according to claim 1.

3. A spectacle lens, which is characterized in that a lens base material is colored with a color within a range of a quadrilateral surrounded by a straight line group of the following equations on an XYZ color system chromaticity diagram of the CIE color system:

y=0.922x+0.020

y=0.922x+0.044

y=−

5.000x+1.915

y=−

5.000x+2.217

and

that reflected light by an antireflection film presenting a color within a range of a quadrilateral surrounded by a straight line group of the following equations on the XYZ color system chromaticity diagram;

y=0.806x−

0.063

y=0.806x+0.053

y=−

2.727x+1.354

y=−

2.727x+1.792.

4. A spectacle having the spectacle lens according to claim 3.

5. A spectacle lens, which is characterized in that a lens base material is colored with a color within a range of a quadrilateral surrounded by a straight line group of the following equations on an XYZ color system chromaticity diagram of the CIE color system:

y=−

1.250x+0.717

y=−

1.250x+0.731

y=3.333x−

0.717

y=3.333x−

0.772

and

that reflected light by an antireflection film presents a color within a range of a quadrilateral surrounded by a straight line group of the following equations on the XYZ color system chromaticity diagram;

y=0.864x−

0.055

y=0.864x−

0.005

y=−

3.333x+1.087

y=−

3.333x+1.548.

6. A spectacle having the spectacle lens according to claim 5.

7. A spectacle lens, which is characterized in that a lens base material is colored with a color within a range of a quadrilateral surrounded by a straight line group of the following equations on an XYZ color system chromaticity diagram of the CIE color system:

y=0.636x+0.112

y=0.636x+0.127

y=−

7.000x+2.510

y=−

7.000x+2.594

and

that reflected light by an antireflection film presents a color belonging within a range of a quadrilateral surrounded by a straight line group of the following equations on the XYZ color system chromaticity diagram;

y=0.213x+0.048

y=0.213x+0.111

y=−

3.529x+0.684

y=−

3.529x+0.860.

8. A spectacle having the spectacle lens according to claim 7.

9. A spectacle lens, which is characterized in that a lens base material is colored with a color within a range of a quadrilateral surrounded by a straight line group of the following equations on an XYZ color system chromaticity diagram of the CIE color system:

y=0.849x+0.052

y=0.849x+0.069

y=−

5.000x+1.590

y=−

5.000x+1.900

and

that reflected light by an antireflection film presents a color within a range of a quadrilateral surrounded by a straight line group of the following equations on the XYZ color system chromaticity diagram;

y=0.190x+0.119

y=0.190x+0.188

y=35.000x−

5.242

y=35.000x−

6.704.

10. A spectacle having the spectacle lens according to claim 9.

11. A spectacle lens, which is characterized in that a lens base material is colored with a color within a range of a quadrilateral surrounded by a straight line group of the following equations on an XYZ color system chromaticity diagram of the CIE color system:

y=0.417x+0.187

y=0.417x+0.202

y=−

7.000x+2.338

y=−

7.000x+2.516

and

that reflected light by an antireflection film presents a color within a range of a quadrilateral surrounded by a straight line group of the following equations on the XYZ color system chromaticity diagram;

y=−

0.107x+0.253

y=−

0.107x+0.389

y=5.583x−

0.686

y=5.583x−

1.005.

12. A spectacle having the spectacle lens according to claim 11.