A surgical light including a light housing having at least one light source therein and a handle assembly extending from the light housing, with the handle assembly including a knob and a cover. The handle assembly is rotatably connected to the light housing. The cover covers the knob. Engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source. Engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

The invention relates to an access system (200) for a vehicle (3), in particular for activating an electric lock (2) of the vehicle (3), comprising: at least one actuation sensor (30), by means of which a first inductance detection (110) can be performed for the detection of an activation action, at least one information sensor (35), by means of which a second inductance detection (120) can be performed, so that an additional information on the activation action can be determined, whereby the detection of the activation action can be verified.

A proximity sensor or switch having a sensing coil, an oscillator connected to the coil, a comparator connected to the oscillator, a reference voltage module connected to the comparator, and an output driver connected to the comparator. The voltage module may incorporate a resistor having an end connected to a high side of a power source, and a digital potentiometer having a first end connected to another end of the resistor and to the comparator, and having a second end connected to a ground side of the power source. The digital potentiometer may have a resistance that is varied with a signal. A variation of the resistance for the digital potentiometer may result in a change of a voltage from the reference voltage module which further changes a switching distance of the proximity switch to a predetermined value.

A proximity sensor is provided. The proximity sensor has an exposed exterior surface formed of a metal material to improve the aesthetics thereof. The proximity sensor mounted within a vehicle includes a frame formed of a nonconductive material and a metal layer that covers an exterior surface of the frame. A sensor electrode contacts the metal layer and a sensor integrated circuit (IC) connected to the sensor electrode to sense an approach or a contact of a user on the metal layer.

A proximity sensor includes a light source, an optical sensing element, and an integration circuit. The light source is turned on and off several times during a measurement time interval. When the light source is turned on and off, the optical sensing element senses the surrounding light to generate a first current and a second current, respectively. The integration circuit integrates the first current and the second current to generate a first integration signal and a second integration signal respectively for determining whether an object is approaching. When the light source is turned on, the present second integration signal is stored, and a stored first integration signal is used as a starting value to integrate the first current. When the light source is turned off, the present first integration signal is stored, and the stored second integration signal is used as a starting value to integrate the second current.

A capacitive button capable of improving tolerance to electrostatic discharge is provided. The capacitive button includes: a pair of sensor electrodes which are provided side by side; a floating electrode which is arranged on a front side of the pair of sensor electrodes via an insulating layer; and a ground electrode which is arranged so as to surround the floating electrode, and is grounded without being electrically connected with the pair of sensor electrodes and the floating electrode. By providing the configuration, the tolerance to the electrostatic discharge of the capacitive button can be improved.

Systems and methods for providing a replacement touchless button for initiating an action upon proximate detection of a solid object near the top of the touchless button. The action is triggered by determining that the solid object is within a predetermined distance from the top of the button. The action is accomplished by the closing of an electrical circuit within the touchless button, the button being configured to replace a push button without modification of a panel housing the push button. The button contains and supports, within its structure, all electrical and physical components needed to operate a device that can be triggered via a push button. The button serves as a direct replacement for a push button with no modifications to existing systems or controls regularly triggered by a push button.

A device for detecting an object with respect to a detection surface including: a measurement electrode; at least one guard electrode, at the same alternating potential as the measurement electrode; at least one module for measuring a first signal with respect to the capacitance (C.sub.eo), called electrode-object capacitance, formed between said measurement electrode and said object; and
at least one electrode, called polarization electrode, placed opposite the object, and polarized at the ground potential (G) so as to polarize the object by capacitive coupling.

A surgical light including a light housing having at least one light source therein and a handle assembly extending from the light housing, with the handle assembly including a knob and a cover. The handle assembly is rotatably connected to the light housing. The cover covers the knob. Engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source. Engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

This sensor includes: a housing 10 which houses an electronic component in the internal space; a detection unit 40 which has a coil 42 and a core 41 that houses the coil 42 and which is arranged on the end side in the internal space; a substrate 30 which is arranged more inside the internal space than the detection unit 40 and on which a circuit electrically connected to the coil 42 is provided; a first shield 451 at least one portion of which is arranged further on the end side in the internal space than the detection unit 40 and which suppresses the penetration of noise from outside of the housing 10; and a spacer 51 which is positioned between the first shield 451 and the detection unit 40 and which separates the surfaces of the first shield 451 and the detection unit 40 that face each other.