Method for opening doors
A method and device for opening a door in a hygienic manner, is done by positioning a foot or hand in a specific defined area so that a light beam that is directed towards the area is interrupted within a set range of distances such that an automatic opening mechanism for the door is activated.
1. A method for opening a door in a hygienic manner, comprising:
emitting and directing a single light beam from a device contained in a door switch towards a specific defined area on a floor;
placing a foot on the defined area which is a marked spot on the floor in the proximity to a door to be opened;
detecting whether the single light beam is interrupted and also a distance from the device emitting the light beam to where in a path of the single light beam the interruption occurred; and
activating an opening mechanism for the door when the distance is within a set range of distances corresponding only to a particular distance above the marked spot along the path of the single light beam.
2. The method according to claim 1 , wherein in the activating step, the opening mechanism for the door is activated when the single light beam is interrupted for a given length of time, and within the set range of distances along the path of the single light beam.
3. The method according to claim 1 , wherein the marked spot on the floor is configured as a print of a foot.
4. The method according to claim 1 , wherein the marked spot on the floor is placed next to a wall in proximity of a door that is to be opened.
5. The method according to claim 1 , wherein the marked spot on the floor is placed in a natural walking zone 1 to 3 meters from the door to be opened.
6. The method of claim 1 , wherein the marked spot on the floor is raised so that the marked spot on the floor can be felt.
7. A method for opening a door in a hygienic manner, comprising:
emitting and directing a single light beam from a device contained in a door switch towards a specific defined area on a ceiling;
moving a hand above head height towards the defined area which is a marked spot on the ceiling in the proximity to a door to be opened;
detecting whether the single light beam is interrupted and also a distance from the device emitting the light beam to where in a path of the single light beam the interruption occurred; and
activating an opening mechanism for the door when the distance is within a set range of distances corresponding only to a particular distance below the marked spot along the path of the single light beam.
8. The method according to claim 7 , wherein the marked spot on the ceiling is configured as a print of a hand.
9. The method according to claim 7 , wherein the marked spot on the ceiling is placed next to a wall of the door that is to be opened.
10. The method according to claim 7 , wherein the marked spot on the ceiling is placed in a natural walking zone 2 to 5 meters from the door to be opened.