Light protection apparatus comprising an electrically...

Details Light protection apparatus comprising an electrically... Light protection apparatus comprising an electrically...

A - Human Necessities

61

F

A61F 9/06 (2006.01)

Patent

CA 2076777

- 18 - ABSTRACT OF THE DISCLOSURE The invention provides a light protection apparatus, particularly for welder's protective helmets, welder's protec- tive eyeglasses or welder's protective shields. It comprises a light protection filter element, the optical transmission thereof being electrically controllable, and a control box connected to the light protection filter element to control the optical transmission of the light protection filter element. The control box comprises one or several light sensitive sensor to control the light transmission of the light protection fil- ter element in dependence of the light falling onto the sensor or sensors, respectively. The light protection filter element is provided with shield elements adapted to shield the sensor against interfering light falling onto the sensor in at least one preselected direction.

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