Rechargeable light curing apparatus
First Claim
1. A rechargeable light curing apparatus in combination with a recharging unit, wherein said rechargeable light curing apparatus comprises:
- at least one hand-operated device with a handle and an on/off switch comprising;
a) a battery pack with at least one accumulator;
b) an electrical contact for recharging said battery pack;
c) a lamp, connected to said battery pack, for emitting light at a defined light emission state when switched on by said on/off switch;
d) light conducting elements positioned in the vicinity of said lamp for receiving and conducting the emitted light;
e) a capacity measuring circuit connected between said battery pack and said lamp for determining a remaining operating period of said battery pack remaining before a recharging of said battery pack is required; and
whereinsaid recharging unit is detachably connected to said hand-operated device, wherein, when said hand-operated device is inserted into said recharging unit, a quick recharging mode is switched on, said recharging unit comprising a control unit for switching from said quick recharging mode to a charge maintaining mode, wherein in said quick recharging mode a pulsed recharging current is used having a characteristic curve adapted to the charge level of said battery pack, and wherein intervals between two pulses of said pulsed recharging current, a terminal voltage, corresponding to the charging level of said battery pack, to be measured during a respective interval is prepared.
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Accused Products
Abstract
A rechargeable light curing apparatus having at least one hand-operated device with a handle and an on/off switch and a recharging unit to which said hand operated device can be mechanically and electrically coupled. The hand-operated device has a battery pack with at least one accumulator and an electrical contact for recharging the battery pack. A lamp is connected to the battery pack and emits light at a defined light emission state when switched on by the on/off switch. Light conducting elements are positioned in the vicinity of the lamp for receiving and conducting the emitted light. A capacity measuring circuit is connected between the battery pack and the lamp for determining a remaining operating period of the battery pack before a recharging of the battery pack is required.
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Citations
32 Claims
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1. A rechargeable light curing apparatus in combination with a recharging unit, wherein said rechargeable light curing apparatus comprises:
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at least one hand-operated device with a handle and an on/off switch comprising; a) a battery pack with at least one accumulator; b) an electrical contact for recharging said battery pack; c) a lamp, connected to said battery pack, for emitting light at a defined light emission state when switched on by said on/off switch; d) light conducting elements positioned in the vicinity of said lamp for receiving and conducting the emitted light; e) a capacity measuring circuit connected between said battery pack and said lamp for determining a remaining operating period of said battery pack remaining before a recharging of said battery pack is required; and
whereinsaid recharging unit is detachably connected to said hand-operated device, wherein, when said hand-operated device is inserted into said recharging unit, a quick recharging mode is switched on, said recharging unit comprising a control unit for switching from said quick recharging mode to a charge maintaining mode, wherein in said quick recharging mode a pulsed recharging current is used having a characteristic curve adapted to the charge level of said battery pack, and wherein intervals between two pulses of said pulsed recharging current, a terminal voltage, corresponding to the charging level of said battery pack, to be measured during a respective interval is prepared. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A rechargeable light curing apparatus comprising:
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at least one hand-operated device with a handle and an on/off switch comprising; a) a battery pack with at least one accumulator; b) an electrical contact for recharging said battery pack; c) a lamp, connected to said battery pack, for emitting light at a defined light emission state when switched on by said on/off switch; d) light conducting elements positioned in the vicinity of said lamp for receiving and conducting the emitted light; e) a capacity measuring circuit connected between said battery pack and said lamp for determining a remaining operating period of said battery pack remaining before a recharging of said battery pack is required; f) a means for generating acoustic signals; wherein, when said hand-operated device is switched on, an acoustic signal is generated by said means for generating acoustic signals after a time interval of 5 to 30 seconds for indicating the lapse of a preset required light emitting period; and wherein said acoustic signal is repeated after a repeated lapse of the preset required light emitting period as many times as the preset required light emitting period has elapsed.
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29. A rechargeable light curing apparatus comprising:
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at least one hand-operated device with a handle and an on/off switch comprising; a) a battery pack with at least one accumulator; b) an electrical contact for recharging said battery pack; c) a lamp, connected to said battery pack, for emitting light at a defined light emission state when switched on by said on/off switch; d) light conducting elements positioned in the vicinity of said lamp for receiving and conducting the emitted light; e) a capacity measuring circuit connected between said battery pack and said lamp for determining a remaining operating period of said battery pack remaining before a recharging of said battery pack is required; f) a means for gradually increasing voltage; and wherein upon switching on said lamp with said on/off switch the voltage supplied to said lamp is gradually increased within an initial interval of 0.5 to 3 seconds. - View Dependent Claims (30)
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31. A rechargeable light curing apparatus comprising:
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at least one hand-operated device with a handle and an on/off switch comprising; a) a battery pack with at least one accumulator; b) an electrical contact for recharging said battery pack; c) a lamp, connected to said battery pack, for emitting light at a defined light emission state when switched on by said on/off switch; d) light conducting elements positioned in the vicinity of said lamp for receiving and conducting the emitted light; e) a capacity measuring circuit connected between said batten pack and said lamp for determining a remaining operating period of said battery pack remaining before a recharging of said battery pack is required; and wherein said hand-operated device further comprises a cooling fan with a temperature sensor for said lamp and a switch for switching on said cooling fan, said cooling fan switched on simultaneously with said lamp, said temperature sensor controlling the operating duration of said cooling fan after said lamp has been switched off. - View Dependent Claims (32)
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Specification