摘要:
An attachment 10 mountable to an electric toothbrush handle 62 having a drive shaft 60 comprises a neck member 16 having an elongated body 40 with a principal axis 42 and a cavity 44; a slide member 12 with an engagement surface 22; a guide sleeve member 14 having a cavity 84, a first outer surface 88 with an engagement opening 90, and a transition surface 92; and a collar member 18. The guide sleeve member, with slide member moveably inserted within the engagement opening, is moveably inserted within the neck member cavity. Insertion of the drive shaft into cavities of the collar member and guide sleeve member from (a) a first radial position along an axis offset and parallel to the principal axis to (b) a second radial position in-line with the principal axis, via the transition surface, results in the drive shaft being held in frictional contact with the engagement surface of the slide member to enable reliable transfer of force/motion from the drive shaft to the neck member.
摘要:
The oral care appliance comprises: a fluid pump (46); a source of liquid (50); and a source of gas (12); wherein the pump is in operative communication with the sources of liquid and gas to produce a series of gas-injected fluid pulses and/or a jet fluid flow using liquid slugs in a selected sequence directed to a nozzle and from there to the teeth, and a control assembly for selecting pulse flow or slug flow with specific set times and sequence directed to a nozzle assembly (80) and from there to the teeth; wherein the pulses have a pulse width within the range of 0.001-0.5 seconds, a pulse height from 0.1-10 Newtons, a rise/fall time range of 0.5-250 ms, a repetition rate in the range of 2 H to 20 Hz, and wherein the gas/liquid mixture range from 40-95% volume to volume gas to liquid, or wherein the fluid slugs in the jet flow have a volume in the range of 0.05-0.5 ml per orifice, a diameter in the range of 0.1-2 mm and a repetition rate within the range of 2 Hz to 20 Hz.
摘要:
A circular user interface (UI) that permits a user to select options and input subjective data (e.g., values and arrays) with a circular gesture-based interaction style in an easy, efficient and fast way. The UI is useful on circular devices that provide a display of, e.g., health and behavior measurements; it uses the circular shape of the device to guide the user and shows guiding animating elements on the display.
摘要:
An oral cavity apparatus includes a body portion (802) having first and second ends (820, 822) and a grip portion situated between the first and second ends; an oral cleaning tool (808) coupled to the first end and including a toothbrush head (814) having a first and second groups of bristles (850, 852) of different firmness. The second group of bristles has an adjustable extension. An actuator (862) is coupled to the second group of bristle (852) and is configured to control an extension of the second group of bristles (852) relative to the first group of bristles (850). At least one touch-sensitive (TS) sensor (104, 106) is mounted upon the body portion and outputs a sensor value indicative of a force applied thereto. In addition, a controller (807) may be configured to compare the sensor value with a threshold value and actuate the actuator (862) to extend the second group of bristles relative to the first group of bristles based upon the results of the determination.
摘要:
A system configured to mitigate axial shocks and rotational vibration in a resonating power toothbrush (10). The system includes a motor mount (70), frame (40), and multi-function coil bobbin (90) that act in concert to absorb axial shocks originating from the motor shaft (60). The mount (70), frame (40), and coil bobbin (90) also act in concert to damp vibrations originating from the motor (50) to the housing (20).
摘要:
An autostereoscopic display comprises a pixelated display panel comprising an array of single color pixels or an array of sub-pixels of different colors and a view forming arrangement comprising an array of lens elements. The pixels form a square (or near square) grid, and the lenses also repeat in a square (or near square) grid. A vector p is defined which relates to a mapping between the pixel grid and the lens grid. Regions in the two dimension space for this vector p are identified which give good or poor banding performance, and the better banding performance regions are selected.
摘要:
An autostereoscopic display uses a beam control system and a pixelated spatial light modulator. Different display modes are provided for the displayed image as a whole or for image portions. These different modes provide different relationships between angular view resolution, spatial resolution and temporal resolution. The different modes make use of different amounts of beam spread produced by the beam control system.
摘要:
A mass sensor for measuring particle mass within an aerosol uses resonance frequency detection to determine a mass of particles. A heating element is used for heating the resonant sensor element and it is controlled during a sensing cycle, with the change in mass of the deposited particles monitored during heating. This enables a low cost device to be able to detect particle concentration as well as provide information about the chemical and/or physical nature of the particles.