Disclosed is a system for a motor vehicle, including a steering wheel (2) connected to the steering system of the vehicle, the steering wheel including a plurality of optical sensors (7) arranged on the rim (25) of the steering wheel and designed to detect the presence of at least one finger (5) of at least one hand of the driver near or in contact with the rim of the steering wheel, by way of which the system is able to determine the number of fingers near or in contact with the rim of the steering wheel as well as their respective positions on the rim. Also disclosed is a method associated with the device.

In some examples, a first keyboard includes a plurality of light-sensing electrodes, where individual ones of the light-sensing electrodes correspond to individual keys of the first keyboard. The first keyboard includes a microprocessor electrically coupled to individual ones of the light-sensing electrodes. A second keyboard comprised of light-transmitting material may be placed on top of the first keyboard. The second keyboard may include a plurality of keys, with individual keys including a keycap having opaque material attached to a bottom surface and a scissors mechanism to lower the opaque material when a predetermined amount of pressure is applied to the keycap. The microprocessor is configured to perform operations including determining that the opaque material is obstructing light to a first particular light-sensing electrode of the plurality of light-sensing electrodes and sending a signal indicating a selection of a first key corresponding to the first particular light-sensing electrode.

The invention discloses a split type dual optical path key switch and a mechanical keyboard. The key switch comprises a key switch body, an LED emitter and a light receiver disposed on the PCB, wherein the key switch body comprises a housing and a handle disposed on the housing. The LED emitter and the light receiver are separated by a first light blocking component; a first light guiding body is disposed above the LED emitter, and a second light guiding body is disposed above the light receiver. The first guiding body is provided with a light transmitting portion and a first light reflecting portion, the second light guiding body is provided with a second light reflecting portion, and the handle is provided with a second light blocking component. The key switch can not only realize the function of backlight through the LED emitter, but also connect the switch with the help of the light receiver, so that the entire housing can reserve a sufficient space. In addition, transmitting light through the two light guiding bodies improves the stability of transmission, reduces the cost and process requirements of the key switch, and greatly improves the precision and service life of the mechanical keyboard.

A system and method are disclosed for operating a computer device using an interface device. The interface device includes at least one emitter of IR light/radiation with a peak intensity of between 780 nm and 1000 nm and at least one detector sensitive to IR light/radiation with a wavelength of 780 nm to 1000 nm wherein the user interface device is located adjacent to transparent, heat insulating glass. The IR emitter directs IR radiation through the glass, wherein the IR radiation is reflected back through the glass to the IR detector and wherein the IR detector transforms the IR radiation into an electronic signal. The method includes the step of activating the detector from a front side of the glass.

A control device may have a plurality of buttons that may be backlit to multiple levels, such as first, second, and third adjacent buttons positioned in order, and first, second, and third LEDs positioned to illuminate a respective button. The control device may be configured to illuminate the first LED to a first LED illumination intensity to illuminate the respective button to a first surface illumination intensity; illuminate the third LED to a second LED illumination intensity to illuminate the respective button to a second surface illumination intensity; and illuminate the second LED to a third LED illumination intensity to illuminate the respective button to the second surface illumination intensity. The third LED illumination intensity may be less than the second LED illumination intensity, which may be less than the first LED illumination intensity, and the second surface illumination intensity may be less than the first surface illumination intensity.

The present disclosure relates to a display panel and a method for manufacturing the same. The display panel includes an infrared receiver. The infrared receiver is disposed on a substrate and is located on one side of the substrate which is close to a light emitting surface, wherein the infrared receiver is configured to receive infrared light incident through the light emitting surface.

An input device is provided which includes: a first light source which emits light to cause a first design to be displayed on a display region: a second light source which emits light to cause a second design different from the first design to be displayed on the display region; a switch which receives an input from a user; and a control circuit which, according to the input received by the switch, (i) controls displaying of a design on the display region, by controlling a lighting state of the first light source and a lighting state of the second light source, and (ii) outputs a control signal corresponding to the input received by the switch, to an external device.

An adaptive reflected light touch sensor (100, 400) is provided. The adaptive reflected light touch sensor (100, 400) includes an emitter (110) that emits light in a direction that reflects the light (RLI, RLO), a sensor (120, 410) positioned to measure a light amplitude of the reflected light (RLI, RLO), a processor board (150) coupled to the sensor (120, 410), the processor board (150) being configured to calculate a moving average of the measured light amplitude of the reflected light (RLI, RLO) and calculate an assert threshold.

In a base element of a waveguide for a detector system at least one portion of radiation passing via the front side and impinging on a diffractive element in the display region is deflected via the diffractive element according to the selection region. The deflected portion is propagated as coupled-in radiation via reflection to an out-coupling region and impinges on the associated out-coupling section of the out-coupling region. The portion of radiation coupled out by an out-coupling section impinges on an associated sensor section of the sensor unit, which continuously measures the intensity of the impinging radiation and supplies the control unit, wherein, according to a change of intensity, which is dependent on positioning an object in front of the front side of the base element and in front of a selection region of the display region, the control unit determines whether the one selection region has been selected.

An optical detection sensor functions as a proximity detection sensor that includes an optical system and a selectively transmissive structure. Electromagnetic radiation such as laser light can be emitted through a transmissive portion of the selectively transmissive structure. A reflected beam can be detected to determine the presence of an object. The sensor is formed by encapsulating the transmissive structure in a first encapsulant body and encapsulating the optical system in a second encapsulant body. The first and second encapsulant bodies are then joined together. In a wafer scale assembling the structure resulting from the joined encapsulant bodies is diced to form optical detection sensors.