Search International and National Patent Collections

1. (WO2018178537) OPTICAL REFRIGERATOR AND SENSOR INCLUDING SUCH A REFRIGERATOR

Pub. No.:    WO/2018/178537    International Application No.:    PCT/FR2018/050622
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 16 00:59:59 CET 2018
IPC: F25B 23/00
H01S 3/04
Applicants: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
Inventors: NIOT, Jean-Michel
GARDELEIN, Arnaud
Title: OPTICAL REFRIGERATOR AND SENSOR INCLUDING SUCH A REFRIGERATOR
Abstract:
Optical refrigerator, in particular for cooling an infrared detector or sensor, the refrigerator (1) comprising a source (2) of laser radiation, a cooling crystal (3) configured to receive the laser radiation of the source (2) and to get colder, an element (4) to be cooled and a thermal connection (6) in heat exchange relationship on the one hand with the crystal (3) and on the other hand with the element (4) to be cooled, in order to transfer heat from the element (4) to be cooled to the crystal (3), characterized in that the thermal connection comprises two strips (4) having first respective ends in heat exchange relationship with two separate surfaces of the crystal (3), respectively, the two strips (6) having second ends in heat exchange relationship with the element (4) to be cooled. Figure 3 to be reproduced.