Abstract: An optical lens includes a first lens group and a second lens group. The first lens group has at least two lenses that include at least one aspheric lens, the second lens group has at least four lenses that includes at least one aspheric lens, and a total number of lenses with refractive powers in the optical lens is smaller than nine. The first and the second lens groups include a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens in order from the magnified side to the minified side. The first lens to the sixth lens have respective refractive powers of negative, negative, positive, positive, negative and positive.

Abstract: The present invention relates to an improved thin touch switch that includes a penetrating hole disposed on a plastic body and proximate to an exposed end of a metal component of a terminal and a high heat resisting and waterproof plastic material filled and sealed at the penetrating hole, such that when pins of the metal components of the touch switch are soldered to a printed circuit board, the plastic material used for sealing and combining the metal components and the plastic body can totally block the cleaning solution from entering from the joint that connects the metal components and the plastic body during the soldering process and can prevent possible short circuits to the metal components of the terminal, so as to effectively improve the life expectancy and safety of the touch switch.

Abstract: The present invention relates to an improved thin touch switch that includes a penetrating hole disposed on a plastic body and proximate to an exposed end of a metal component of a terminal and a high heat resisting and waterproof plastic material filled and sealed at the penetrating hole, such that when pins of the metal components of the touch switch are soldered to a printed circuit board, the plastic material used for sealing and combining the metal components and the plastic body can totally block the cleaning solution from entering from the joint that connects the metal components and the plastic body during the soldering process and can prevent possible short circuits to the metal components of the terminal, so as to effectively improve the life expectancy and safety of the touch switch.

Abstract: A foot massaging exercising apparatus includes a base, a pair of upright rocker bars, a pair of foot pedals, and massaging boards. The base has securing seats at a front end thereof and bearing frames at a rear end thereof. The rocker bars are pivotally mounted at the securing seats such that the user may swing them forwardly or rearwardly. The foot pedals are mounted at the bearing frames and are capable of free swinging movement. Two massaging boards, one inclining forwardly, the other inclining rearwardly, are pivotally mounted in the bearing frames below each foot pedal. One side of each foot pedal extends downwardly to form a flange. The flange is connected via a link to the lower portion of the corresponding rocker bar. When the user swings the rocker bars, due to the arrangement of the links, the foot pedals may be caused to swing forwardly and rearwardly therewith in turn.

Abstract: A hula-hoop includes a body having a hollow portion at an inner side thereof, and a plurality of rollers equi-distantly spaced apart and pivotally mounted in the hollow portion of the hula-hoop body. The rollers are covered by a soft outer sleeve and each roller projects slightly from the inner side of the hula-hoop body. When the user turns the hula-hoop at the waist portion, the rollers may enhance the turning of the hula-hoop, and may prevent possible injury to the waist portion. The hula-hoop is easy to dismantle and assemble to facilitate carrying. Additionally, the rollers may massage the waist of the user during play.