Global Patent Index - EP 1098178 A2

EP 1098178 A2 2001-05-09 - Controlling luminance of illuminated surface

Title (en)

Controlling luminance of illuminated surface

Title (de)

Leuchtdichtenregelung einer beleuchteten Fläche

Title (fr)

Régulation de la luminance d'une surface illuminée

Publication

EP 1098178 A2 (EN)

Application

EP 00660192 A

Priority

FI 19992386 A

Abstract (en)

A method and equipment for controlling the luminance of an illuminated surface, the method comprising the step of controlling the luminance of the illuminated surface (1). The method also comprises the steps of defining the brightness of the environment of the illuminated surface (1) to produce a reference brightness, and controlling the luminance of the illuminated surface with an illuminating element (5) depending on the level of the reference brightness. <IMAGE>

IPC 1-7 (main, further and additional classification)

G01J 1/32; G05D 25/02

IPC 8 full level (invention and additional information)

G05D 25/02 (2006.01)

CPC (invention and additional information)

H05B 37/0209 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1098178 A2 20010509; EP 1098178 A3 20040317; FI 111302 B 20030630; FI 19992386 A 20010505; NO 20005569 A 20010507; NO 20005569 D0 20001103; PL 343658 A1 20010507

INPADOC legal status


2006-09-20 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20060404

2004-12-08 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2004-10-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040820

2004-09-15 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20040720

2004-03-17 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2004-03-17 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL LT LV MK RO SI

2004-03-17 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7G 01J 1/32 A

2004-03-17 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7G 05D 25/02 B

2001-05-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-05-09 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI