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1. (WO2017149004) LIGHT/VOLTAGE CONVERTER CIRCUIT FOR CONVERTING INTENSITY FLUCTUATIONS OF LIGHT INTO AN ALTERNATING VOLTAGE MEASUREMENT SIGNAL
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Pub. No.: WO/2017/149004 International Application No.: PCT/EP2017/054750
Publication Date: 08.09.2017 International Filing Date: 01.03.2017
IPC:
G01J 1/44 (2006.01) ,G01J 3/44 (2006.01) ,G01J 1/02 (2006.01) ,G01J 1/46 (2006.01)
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1
Photometry, e.g. photographic exposure meter
42
using electric radiation detectors
44
Electric circuits
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
28
Investigating the spectrum
44
Raman spectrometry; Scattering spectrometry
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1
Photometry, e.g. photographic exposure meter
02
Details
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1
Photometry, e.g. photographic exposure meter
42
using electric radiation detectors
44
Electric circuits
46
using a capacitor
Applicants:
LEICA MICROSYSTEMS CMS GMBH [DE/DE]; Ernst-Leitz-Straße 17-37 35578 Wetzlar, DE
Inventors:
KRISHNAMACHARI, Vishnu Vardhan; DE
MRAWEK, Patric; DE
WIDZGOWSKI, Bernd; DE
Agent:
BRADL, Joachim; DE
Priority Data:
9298302.03.2016LU
Title (EN) LIGHT/VOLTAGE CONVERTER CIRCUIT FOR CONVERTING INTENSITY FLUCTUATIONS OF LIGHT INTO AN ALTERNATING VOLTAGE MEASUREMENT SIGNAL
(FR) CIRCUIT DE CONVERSION LUMIÈRE/TENSION POUR CONVERTIR DES VARIATIONS D’INTENSITÉ DE LUMIÈRE EN UN SIGNAL DE MESURE DE TENSION ALTERNATIVE
(DE) Licht-/Spannungs-Wandlerschaltung zur Wandlung von Intensitätsschwankungen von Licht in ein Wechselspannungsmessignal
Abstract:
(EN) The invention relates to a light/voltage converter circuit (100) for converting intensity fluctuations of light (L) into an alternating voltage measurement signal, comprising a photodiode (D) for detecting the light (L); a transformer (T) with a primary coil (T1) and a secondary coil (T2), wherein the primary coil (T1) of the transformer (T) is connected in series to the photodiode (D), and the alternating voltage measurement signal is produced in the secondary coil (T2); and a direct current-blocking and alternating current-conductive electric network (N1) which is connected in parallel to the series circuit of the primary coil (T1) of the transformer (T) and the photodiode (D). The invention also relates to a microscope comprising such a light/voltage converter circuit (100).
(FR) L’invention concerne un circuit de conversion lumière/tension (100), destiné à convertir des variations d’intensité de lumière (L) en un signal de mesure de tension alternative, comprenant une photodiode (D) destinée à détecter la lumière (L), un transformateur (T) comportant un enroulement primaire (T1) et un enroulement secondaire (T2), l'enroulement primaire (Tl) du transformateur (T) étant monté en série avec la photodiode (D), le signal de mesure de tension alternative étant appliqué à l’enroulement secondaire (T2), et un réseau électrique (N1) bloquant le courant continu et laissant passer le courant alternatif, lequel réseau électrique est monté en parallèle avec le circuit série constitué de l’enroulement primaire (T1) du transformateur (T) et la photodiode (D). L’invention concerne également un microscope comportant un tel circuit de conversion lumière/tension (100).
(DE) Die Erfindung betrifft eine Licht-/Spannungs-Wandlerschaltung (100) zur Wandlung von Intensitätsschwankungen von Licht (L) in ein Wechselspannungmesssignal, mit einer Photodiode (D) zum Erfassen des Lichts (L), einem Transformator (T) mit einer Primärwicklung (Tl) und einer Sekundärwicklung (T2), wobei die Primärwicklung (Tl) des Transformators (T) mit der Photodiode (D) in Reihe geschaltet ist und wobei das Wechselspannungmesssignal an der Sekundärwicklung (T2) anliegt, und einem gleichstromsperrenden und wechselstromleitenden elektrischen Netzwerk (Nl), das parallel zu der Reihenschaltung aus der Primärwicklung (Tl) des Transformators (T) und der Photodiode (D) geschaltet ist. Die Erfindung betrifft auch ein Mikroskop mit einer solchen Licht-/Spannungs-Wandlerschaltung (100).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)