Abstract: A vehicle lamp includes a light source, a front cover made of a transparent material to transmit light emitted by the light source, a lamp body forming a lamp housing together with the front cover, and a vibrator configured to vibrate the front cover to generate a vibration sound. The vibrator is supported by the lamp housing such that the vibrator contacts the front cover at a location where, when the vehicle lamp is mounted on a vehicle, the vibrator is not visible from an outside of the vehicle lamp.

Abstract: A device includes a housing and a hammer. A motor is coupled to the hammer to move the hammer away from a side of the housing and release the hammer. A tension spring is coupled to the hammer to cause the hammer to strike the housing after the hammer is moved away from the housing by the motor and released. The housing acts as a sounding device to simulate the sound of gunfire.

Abstract: A precious stone testing apparatus includes a hand held casing receiving a microprocessor therein, a testing head, and an indicating arrangement provided at the hand held casing and electrically linked with the microprocessor. The testing head includes a testing probe for contacting a tested object, a UV light source for UV light generation, and a thermal conduction unit electrically linked to the microprocessor for determining a thermal conductivity of the tested object through the testing probe, wherein the thermal conduction unit and the UV light source are independently operated for evaluating the tested object, The indicating arrangement includes a plurality of indicating lights to be activated in responsive to the corresponding thermal conductivity of the tested object so as to classify the tested object.

Abstract: A manual-operation sound and light emitting device is used in a vehicle, particularly in a bicycle. Moving a movable rod, a gear will rotate. Then steel balls resists against a cover so as to rotate the cover. The rotation of the cover will drive a central rod and a bell body to rotate. Then a coil, a transparent light mask, and a hammer of the bell body displace to touch a block of a seat. By the elasticity of a spring, a hammer will vibrate after passing through the block so as to knock the bell body to emit sounds. A plurality of inclined grooves in the gear and the steel balls cause the bell body to rotate unidirectionally. When the central rod rotates, a coil will be driven. A magnet will cut through positive negative electrode sheets so as to light up LED lights in the bell body.

Abstract: A cushioned sound and flash generator is designed for mounting in a heel of child's shoe. The sound and flash generator has a case having a sound and flash generating unit fixedly mounted therein and a cover vertically movably closed onto the case. Elastic members are positioned in the case above the sound and flash generating unit to normally support the cover at a highest possible position relative to the case. When a child walks or runs and therefore applies a downward pressure on the cushioned sound and flash generators mounted in the shoes, the elastic members are elastically compressed for the covers to elastically descend relative to the cases, preventing the child's heels and ankles from injury.