MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202617077302 A) filed by Teknologian Tutkimuskeskus Vtt Oy on June 23, 2026, for Spectroscopic Apparatus Comprising A Pulsed Light Source.

Inventors include Soukkamki, Jussi; and Kriinen, Teemu.

The application for the patent was published on September 18, 2026, under issue no. 38/2026.

Abstract: An apparatus (500) for spectral measurements comprises: - an illuminating unit (110) to form narrowband light pulses (B2t1, B2t2) at different wavelengths (?1,?2) for illuminating an object (OBJ1) with the narrowband light pulses (B2t1, B2t2) - a sensor (SEN1) to detect light (B3) received from the object (OBJ1), - a control unit (CNT1) to control operation of the sensor (SEN1), wherein the illuminating unit (110) comprises: - a broadband light source (LS1) to generate broadband light pulses (B1), - a Fabry-Perot interferometer (FPI1) to form narrowband light pulses (B2) by filtering the broadband light pulses (B1), wherein the broadband light source (LS1) is arranged to generate a first broadband light pulse (B1t1) at a first trigger time (t1), and to generate a second broadband light pulse (B1t2) at a second trigger time (t2), wherein the Fabry-Perot interferometer (FPI1) is tunable by moving a mirror (M2) of the Fabry-Perot interferometer (FPI1), wherein the illuminating unit (110) is arranged to operate such that a movement of the mirror (M2) is not stopped between the first trigger time (t1) and the second trigger time (t2), wherein a start time (tA1) of a first exposure time (?tEX1) of the sensor (SEN1), and a duration of the first exposure time (?tEX1) are controlled such that the illuminating unit (110) forms the first broadband light pulse (B1t1) and the second broadband light pulse (B1t2) during the first exposure time (?tEX1).

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