Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1342/CHENP/2012 A
(19) INDIA
(22) Date of filing of Application :13/02/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : MULTI-SPECTRAL IMAGING
(51) International classification :G01G3/28
(31) Priority Document No :09167624.7
(32) Priority Date :11/08/2009
(33) Name of priority country :EPO
(86) International Application No
Filing Date
(87) International Publication No : NA
(61) Patent of Addition to Application
:NA
Number
:NA
Filing Date
(62) Divisional to Application Number
Filing Date
:PCT/IB2010/053602
:10/08/2010
:NA
:NA
(71)Name of Applicant :
1)KONINKLIJKE PHILIPS ELECTRONICS N.V.
Address of Applicant :GROENEWOUDSEWEG 1
EINDHOVEN 5621 BA NETHERLANDS
(72)Name of Inventor :
1)VLUTTERS Ruud
2)MUIJS Remco Theodorus Johannes
3)SCHMEITZ Harold Agnes Wilhelmus
(57) Abstract :
A multi-spectral camera comprises a blocking element (201) having at least one hole (203) allowing light to pass through. A
dispersive element (205) spreads light from the at least one hole (203) in different wavelength dependent directions and a lens
(207) focuses light from the dispersive element (205) on an image plane (209). A microlens array (211) receives light from the
lens (207) and an image sensor (213) receives the light from the microlens array (211) and generates a pixel value signal which
comprises incident light values for the pixels of the image sensor (213). A processor then generates a multi-spectral image from
the pixel value signal. The approach may allow a single instantaneous sensor measurement to provide a multi-spectral image
comprising at least one spatial dimension and one spectral dimension. The multi-spectral image may be generated by postprocessing
of the sensor output and no physical filtering or moving parts are necessary.
No. of Pages : 34 No. of Claims : 15
The Patent Office Journal 21/06/2013 13757