FR2003235A1 - - Google Patents

Abstract

Abstract 1,191,414. Supply systems for endoscopic apparatus. MATBURN (HOLDINGS) Ltd. 28 Feb., 1969 [5 March, 1968; 16 Aug., 1968], Nos. 10558/68 and 39315/68. Heading H2H. A supply system for an endoscopic apparatus includes means whereby the light unit of the endoscope is fed with current at a frequency greater than 15 K.Hz. An endoscope 1 is provided with a light unit 2 at one end, the light being supplied from an A.C. source LN by way of a transformer-rectifier combination, a transistor oscillator, the output frequency of which is greater than 15 K.Hz, and a step down transformer T2. A indicating lamp PL1 is provided and the supply current may be adjusted by a variable resistor RV1. In a second embodiment the source of electricity is a battery.

Inventors

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Bibliographic Details