Device for hardening nail varnish by radiation

Patent metadata

Field	Value
Publication number	US-10231526-B2
Application number	US-201414908232-A
Country	US
Kind code	B2
Filing date	Jul 31, 2014
Priority date	Jul 31, 2013
Publication date	Mar 19, 2019
Grant date	Mar 19, 2019

Abstract

The invention relates to a device for hardening nail varnish by ultraviolet radiation. The device comprises:
a bearing surface ( 26 ) intended to support the hands or the feet of the user, radiation sources ( 38 ) able to emit a radiation to harden nail varnish in the form of a light beam to illuminate the nails of the user.

The beams define on the bearing surface ( 26 ) at least six illuminated portions ( 42 ) separated from each other by a non-illuminated portion, with the number of illuminated portions ( 42 ) being less than nine.

First claim

The invention claimed is:

1. A device for hardening nail varnish by ultraviolet radiation, wherein the device comprises:
a bearing surface intended to support the hands or the feet of a user,
radiation sources able to emit a radiation to harden nail varnish in the form of a light beam to illuminate the nails of the user, with the beams defining on the bearing surface at least six illuminated portions separated from each other by a non-illuminated portion, with the number of illuminated portions being less than nine,
wherein the device further comprises a case provided with walls delimiting an inner space comprising a first space able to receive the distal phalanges of the fingers of the hands or of the feet of the user and a second space able to receive the other portions of the hands or the other portions of the feet of the user,
a first presence sensor able to emit a presence signal in the presence of an element at a predefined location, wherein the first presence sensor comprises an active mode in which the first presence sensor is able to emit a presence signal in the presence of an element in the first space and an inactive mode in which the first presence sensor does not emit a presence signal, the first presence sensor being able to switch from the active mode to the inactive mode during the turning on of one of the radiation sources,
a control circuit able to control the radiation sources,
with the predefined location being the first space and the control circuit being able to control the radiation sources depending on the presence signal of the first presence sensor, and
a second presence sensor able to emit a presence signal in the presence of an element in the second space, with the control circuit being able to control the radiation sources depending on the signal of the second presence sensor,
the control circuit being able to turn on the radiation sources when the two presence sensors emit a presence signal simultaneously and being able to close the radiation sources when the second presence sensor does not emit a presence signal for a predetermined time.

2. The device according to claim 1 , in which the number of illuminated portions is equal to seven.

3. The device according to claim 2 , wherein the device further comprises:
a control circuit able to control the radiation sources according to a control law,
each light beam delimiting on the bearing surface an illuminated portion,
with the control law depending on the position of the portion illuminated by the beam of the radiation source.

4. The device according to claim 1 , wherein the device further comprises:
a control circuit able to control the radiation sources according to a control law,
each light beam delimiting on the bearing surface an illuminated portion,
with the control law depending on the position of the portion illuminated on the bearing surface by the beam of the radiation source.

5. The device according to claim 4 , in which the control law comprises a first control law for a first plurality of radiation sources and a second control law for a second plurality of radiation sources, with the second law being adjustable independently of the first law, with the beams emitted by the first plurality of radiation sources-delimiting first illuminated portions on the bearing surface, with the beams emitted by the second plurality of radiation sources delimiting second illuminated portions on the bearing surface, with the first illuminated portions being distinct from the second illuminated portions.

6. The device according to claim 5 , in which the control law also comprises a third control law for a third plurality of radiation sources, with the third control law being adjustable independently of the first control law and of the second control law, with the beams emitted by the third plurality of radiation sources delimiting third illuminated portions on the bearing surface, the third illuminated portions being distinct from the first illuminated portions and second illuminated portions.

7. The device according to claim 6 , in which the third plurality of radiation sources comprises three radiation sources.

8. The device according to claim 7 , in which the control circuit comprises a respective current generator for each plurality of radiation sources.

9. The device according to claim 6 , in which the control circuit comprises a respective current generator for each plurality of radiation sources.

10. The device according to claim 5 , in which the control circuit comprises a respective current generator for each plurality of radiation sources.

11. A method for applying a varnish on the nails of the hands of a user comprising the steps of:
introducing into a device for hardening nail varnish by ultraviolet radiation according to claim 1 of a hand of the user in an irradiation position
introducing into the device of the other hand of the user in an irradiation position,
with the irradiation positions of the hands having common portions, and controlling radiation sources of the device by the following steps:
detecting distal phalanges of the fingers of the hands or of the feet of the user by the first presence sensor,
emitting a presence signal by the first presence sensor,
detecting distal phalanges of the fingers of the hands or of the feet of the user by the second presence sensor,
emitting a presence signal by the second presence sensor and
turning on of the radiation sources when the two presence sensors emit a presence signal simultaneously, and wherein the method further comprises the following steps of:
stopping of the emitting of a presence signal by the second presence sensor for a predetermined time, and at which time
closing the radiation sources.

12. The method for applying a varnish on the nails of the hands of a user according to claim 11 wherein the hands have at least three common portions.

Assignees

• Oreal

Inventors

• Duru Nicolas
• Bonningue Philippe

Classifications

• A45D29/00 Primary

  Manicuring or pedicuring implements · CPC title

• A45D29/18

  Manicure or pedicure sets, e.g. combinations without case, etui, or the like (combined with or on sheath of scissors B26B13/22, B26B29/04) · CPC title

• A45D31/00

  Artificial nails · CPC title

• H05B45/10

  Controlling the intensity of the light · CPC title

• H05B33/0854

  Electricity · mapped topic