Abstract: A mobile device having a digital camera and an assembling method for a ring is disclosed. The mobile device includes a housing, a digital camera module and the ring, wherein the housing has a through hole which a notch is formed therein. The digital camera module has an arm. The ring is disposed in the through hole. Besides, one side of the ring includes an extended part which is located on the notch and forms a dynamic relationship with the arm.

Abstract: A fixing device for an electronic card is disposed at the inside of the housing of a portable electronic product, and at least includes a sliding element, an elastic element and a blocking element. The sliding element pushes against the electronic card, and when the front end of the sliding element enters or is eject from the portable electronic product through a setting opening, it drives the electronic card to enter or be eject from the portable electronic product through the setting opening. The elastic element pushes the sliding element by its elastic action, and makes the front end of sliding element exposed outside the housing through the setting opening. The blocking element is adjacent to the setting opening.

Abstract: A fixing device for an electronic card is disposed at the inside of the housing of a portable electronic product, and at least includes a sliding element, an elastic element and a blocking element. The sliding element pushes against the electronic card, and when the front end of the sliding element enters or is eject from the portable electronic product through a setting opening, it drives the electronic card to enter or be eject from the portable electronic product through the setting opening. The elastic element pushes the sliding element by its elastic action, and makes the front end of sliding element exposed outside the housing through the setting opening. The blocking element is adjacent to the setting opening.

Abstract: A track formed on a housing of an electronic device provides a space for a sliding element to slide. The housing includes a first stopper and a second stopper formed on a first side of the track for preventing the sliding element from deviating from the track.

Abstract: A track formed on a housing of an electronic device provides a space for a sliding element to slide. The housing includes a first stopper and a second stopper formed on a first side of the track for preventing the sliding element from deviating from the track.

Abstract: A mobile device having a digital camera and an assembling method for a ring is disclosed. The mobile device includes a housing, a digital camera module and the ring, wherein the housing has a through hole which a notch is formed therein. The digital camera module has an arm. The ring is disposed in the through hole. Besides, one side of the ring includes an extended part which is located on the notch and forms a dynamic relationship with the arm.

Abstract: A cover comprises a first guide portion and a second guide portion. A side surface of the cover pivots to a case. When the cover closes, the cover mantles a moving component in a container of the case. The first guide portion is adjacent to a first side surface. When the cover opens, the first guide portion pushes the moving component to depart from a specific position in the container. The second guide portion is adjacent to a second side surface of the cover. When the cover closes, the second guide portion pushes the moving component to the specific position in the container. Moreover, in an electrical apparatus, a moving component is placed in a container thereof. The electrical apparatus includes a cover and a case in which the container is disposed. The cover has a side surface pivoting to the case. When the cover closes, the cover mantles the moving component in the container.

Abstract: An angle adjustable holder comprises a base, a holding element, a first friction element, a second friction element, a springiness element, a bearing element, a first combination element and a second combination element. The base has a first connecting portion and a second connecting portion. The first friction element has a first friction surface, and the second friction element has a second friction surface. The second friction surface and the first friction surface are in contact. The first combination element passes through the first connecting portion, the second connecting portion, the pivotally connecting portion of the holding element, the bearing element, and the springiness element. The second combination element is combined with the first combination element such that the springiness forces the first friction surface to contact the second friction surface for providing a resistance when the holding element is pivotally rotated.

Abstract: A cover comprises a first guide portion and a second guide portion. A side surface of the cover pivots to a case. When the cover closes, the cover mantles a moving component in a container of the case. The first guide portion is adjacent to a first side surface. When the cover opens, the first guide portion pushes the moving component to depart from a specific position in the container. The second guide portion is adjacent to a second side surface of the cover. When the cover closes, the second guide portion pushes the moving component to the specific position in the container. Moreover, in an electrical apparatus, a moving component is placed in a container thereof. The electrical apparatus includes a cover and a case in which the container is disposed. The cover has a side surface pivoting to the case. When the cover closes, the cover mantles the moving component in the container.

Abstract: An optical calibration plate and the assembling method for the same are disclosed. The optical calibration plate is assembled on a cover of an optical apparatus, the cover has a clamping means and the optical calibration plate is locked on the clamping means. The assembling method comprises following steps: (1) clamping one side of the optical calibration plate on a clamping means of a cover of an optical apparatus; and (2) clamping another side of the optical calibration plate on another clamping means of the cover. The optical calibration plate has less contamination because the operator will not touch the optical calibration and the processing time and cost are reduced.