DE-ICING OR DEFOGGING SYSTEM FOR OPTICAL INSTRUMENT AND IMAGE ACQUISITION DEVICE PROVIDED WITH SAID SYSTEM
First Claim
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1. A defogging or de-icing system for an optical instrument having a protective casing, characterized in that it comprises:
- a porthole (2) covered on at least one of its faces with a heat conducting film (7) placed at the edge of the useful area of said porthole (2), said porthole being designed to be mounted on said protective casing (1),heating elements (8) designed to be placed in contact with said film in order to heat said film, andan electrical supply circuit (9, 10) for said heating elements (8).
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Abstract
The disclosed embodiments relate to a defogging or de-icing system for an optical instrument including a protection housing. According to the disclosed embodiments, the system includes: a porthole covered on at least one face thereof with a heat conducting film provided at the edge of the useful area of said porthole, the porthole being mounted on the protection housing, heating members placed in contact with the film for heating said film, and a power supply circuit for the heating members.
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Citations
10 Claims
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1. A defogging or de-icing system for an optical instrument having a protective casing, characterized in that it comprises:
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a porthole (2) covered on at least one of its faces with a heat conducting film (7) placed at the edge of the useful area of said porthole (2), said porthole being designed to be mounted on said protective casing (1), heating elements (8) designed to be placed in contact with said film in order to heat said film, and an electrical supply circuit (9, 10) for said heating elements (8). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification