Patent ID: 8056247

Claim:
A tilt sensor, comprising: a body suitable for tilting in a plurality of tilt directions, comprising: a movement region; a first containing region having a first opening, the first containing region connected with the movement region through the first opening; a second containing region having a second opening, the second containing region connected with the movement region through the second opening; a third containing region having a third opening, the third containing region connected with the movement region through the third opening; a substrate; a housing disposed on the substrate, wherein the housing has a recess structure defining the movement region, the first containing region, the second containing region, and the third containing region; a light emitting device (LED) disposed in the first containing region, the LED suitable for providing a light beam; a first photosensitive device disposed in the second containing region and arranged on a side of the LED; a second photosensitive device opposing to the first photosensitive device and disposed in the third containing region and arranged on another side of the LED; and a reflective moving thin-element disposed in the movement region, wherein when the body tilts toward one of the different tilt directions, the reflective moving thin-element is correspondingly moved toward the tilt direction so that the reflective moving thin-element directly reflects the light beam provided from the LED to at least one of the first photosensitive device or the second photosensitive device, or the reflective moving thin-element shields the light beam provided from the LED from being transmitted to the first photosensitive device and the second photosensitive device.