Instrument probe having a back-lighted camera

Details Instrument probe having a back-lighted camera Instrument probe having a back-lighted camera

H - Electricity

04

N

H04N 7/18 (2006.01) E21B 47/00 (2006.01) G03B 37/00 (2006.01) H04N 5/225 (2006.01)

Patent

CA 2136545

An instrument probe (10) contains an improved camera and light source arrangement. The light source (18) is positioned behind the camera (22) for providing indirect illumination of a passage being inspected by the camera (22) such as the contents of a bore hole (28) or its casing (36). The light source (18) is physically separated from the camera (22) thus providing insulation to the camera (22) from heat produced by the light source (18). The camera housing comprises a quick connect and disconnect latch (60) which allows for the swift changeover of camera components at the distal end of the instrument probe (10). A parabolic reflector (34) at the light source directs light distally to the instrument body (10). A second reflector (58) is located on the camera body to further reflect light towards the walls of the passageways, thereby enhancing the indirect light funneled to the area being inspected by the camera (22).

Sonde (10) contenant une caméra et une source de lumière selon un agencement perfectionné. La source de lumière (18) est positionnée derrière la caméra (22) de manière à permettre l'éclairage indirect d'un passage contrôlé par la caméra (22), tel que le contenu d'un trou de forage (28) ou son cuvelage (36). La source de lumière (18) est séparée physiquement de la caméra (22), de sorte que cette dernière est isolée de la chaleur dégagée par la source de lumière (18). Le boîtier de la caméra comprend un verrou d'accouplement et désaccouplement rapide (60) permettant le changement aisé des composants de la caméra à l'extrémité distale de l'instrument (10). Un réflecteur parabolique (34) sur la source de lumière dirige la lumière vers la partie distale de la sonde (10). Un deuxième réflecteur (58) est monté sur le boîtier de la caméra pour réfléchir la lumière vers les parois du passage, ce qui améliore l'éclairage indirect de la zone inspectée par la caméra (22).

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