continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6566/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :29/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "POLARIZING OPTICAL ELEMENT COMPRISING A POLARIZING FILM AND METHOD FOR
MANUFACTURING SUCH ELEMENT"
(51) International classification :G02B 5/30 (71)Name of Applicant :
(31) Priority Document No :06 01608
1)ESSILOR INTERNATIONAL (COMPAGNIE
(32) Priority Date :23/02/2006 GENERALE D'OPTIQUE)
(33) Name of priority country :France
Address of Applicant :147,REU DE PARIS,F-94220
(86) International Application No :PCT/FR2007/000312 CHARENTON-LE-PONT,FRANCE. France
Filing Date
:21/02/2007 (72)Name of Inventor :
(87) International Publication No :WO 2007/096521 1)BEGON,CEDRIC
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
2)ROOS, ALEXANDRA
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
A polarizing optical element comprises a transparent optical base element (I) and a layered structure (2) that incorporates a polarizing
film (2a). The polarizing film is of the dichroic dye type and is oriented uniaxially. The layered structure is bonded to the optical base
element by means of a layered structure (3) that includes at least one layer of a pressure-sensitive adhesive. Thanks to the use of
pressure-sensitive adhesive, the polarizing film (2a) during the bonding operation maintains a high polarization efficiency and an
optical quality compatible with many applications of the optical element, especially ophthalmic application.
No. of Pages : 37 No. of Claims : 34
The Patent Office Journal 24/10/2008 26001