Title:
IMPROVEMENTS IN EYEGLASSES WITH SELECTIVELY ADJUSTABLE OPTICAL POWER LENSES
Document Type and Number:
Japanese Patent JP2021119418
Kind Code:
A
Abstract:
To provide a method of fabricating a lens element for an adjustable power lens of a kind comprising two lens elements that are slidable relative to each other in a direction transverse to an optical axis of the lens, and have respective lens surfaces shaped to act together to form a corrective lens, the power of which varies according to the relative disposition of the two lens elements.SOLUTION: A method provided herein comprises: forming a lens puck having two opposite faces shaped to form opposite lens surfaces of one of lens elements of an adjustable power lens, the puck having at least one alignment feature part; and thereafter edging the puck to a desired eye shape with reference to the alignment feature part.SELECTED DRAWING: Figure 17
Inventors:
ROBERT EDWARD STEVENS
ALEX EDGINTON
DANIEL PAUL RHODES
MARTYN FRANCIS KENNEALLY
SIMON PETER HORROCKS
BENJAMIN IAN CURNOW
ALEX EDGINTON
DANIEL PAUL RHODES
MARTYN FRANCIS KENNEALLY
SIMON PETER HORROCKS
BENJAMIN IAN CURNOW
Application Number:
JP2021081586A
Publication Date:
August 12, 2021
Filing Date:
May 13, 2021
Export Citation:
Assignee:
ADLENS LTD
International Classes:
G02C7/06; G02B1/18; G02C7/08
Foreign References:
| WO2013137179A1 | 2013-09-19 | |||
| GB2486212A | 2012-06-13 |
Attorney, Agent or Firm:
Iseki Katsumori
Shuhei Kaneko
Wataru Onishi
Shuhei Kaneko
Wataru Onishi