Abstract: A power plug with overloaded display providing users with a function of a warning display for protecting the power plug from over-heated melting and from shorting and catching on fire. The plug includes an embedded positioned block arranged on a periphery of electric metal-pins of the power plug, and a thermochromic film is coated on the surface of the embedded positioned block, and warning characters are printed on the embedded positioned block. The external body of the power plug is made by injection modeling with mixed transparent PVC and thermochromic materials, or the embedded positioned block may be directly injected with thermochromic materials, or connected with a detecting transistor linked by a light emitting diode (LED). When the power plug is over-heated and the temperature of the power plug generally increases, the thermochromic materials or the LED will display a warning message.

Abstract: A lens assembly for evenly distributing light beams includes a body, an input lens and an output lens. The input lens and the output lens are oppositely mounted on the body. The input lens is a convex lens and the output lens is composed of multiple lens units arranged in such a way that a lens group is formed such that a light beam passing through the input lens and into the body is able to be evenly distributed by the output lens.

Abstract: The present invention relates to providing a power plug with overloaded display, which provides users with the function of warning display for protecting the power plug from over-heated melting and from shorting and catching on fire. The character is that an embedded positioned block is arranged on the periphery of the electric metal-pin of said power plug, and a thermochromic film is coated on the surface of said embedded positioned block, and warning characters are printed on said embedded positioned block. The external body of said power plug is made by injection modeling with mixed transparent PVC and thermochromic materials, or the embedded positioned block may be directly injected with thermochromic materials, or connected with a detecting transistor linked by a light emitting diode (LED). When the power plug is over-heated and the temperature of the power plug gradually increases, the thermochromic materials or the LED will display a warning message.

Abstract: The present invention is to provide a safety plug for preventing a short circuit due to PVC material melting at high temperature. The features are: to plant a heat-resistant object in between two pins of the safety plug, and to form the two pins with PVC material by way of shrink; hence movement, deformation and short circuit of the two pins are avoided.

Abstract: An LED (light-emitting diode) signal light comprises a light source composed of a plurality of LEDs mounted on a circuit board and light is cast from a front mantle capable of modulating optically, wherein an external lateral surface of the front mantle is a smooth plane while an internal lateral surface is provided with a plurality of lens cells, which are located oppositely against the LEDs correspondingly. Both the architecture of the cutaway and the cross sections of the lens cell implicate an arcuate curve with an opening oriented a smooth plane. Light cast from an LED will undergo optical modulation of the plurality of lens humps on the lens cell so as to redistribute the light in vertical and horizontal direction and adjust orientation of light to the specified illumination areas.

Abstract: An ellipsometer for measuring the complex refractive index of a sample and thin film thickness according to the invention. The ellipsometer includes a linear polarized light source, a reference analyzer, a polarization analyzer and a light direction controller. The linear polarized light source used to generate a measuring beam for detecting the sample. The phase modulator used to control the phase of the measuring beam thereby to generate a sampling beam. The reference analyzer used to generate a reference beam according to part of the sampling beam thereby to adjust the intensity of the sampling beam. The polarization analyzer used to analyze the phase, polarization and intensity of the sampling beam after the sampling beam is reflected by the sample.

Abstract: An LED (light-emitting diode) signal light comprises a light source composed of a plurality of LEDs mounted on a circuit board and light is cast from a front mantle capable of modulating optically, wherein an external lateral surface of the front mantle is a smooth plane while an internal lateral surface is provided with a plurality of lens cells, which are located oppositely against the LEDs correspondingly. Both the architecture of the cutaway and the cross sections of the lens cell implicate an arcuate curve with an opening oriented a smooth plane. Light cast from an LED will undergo optical modulation of the plurality of lens humps on the lens cell so as to redistribute the light in vertical and horizontal direction and adjust orientation of light to the specified illumination areas.