Abstract: A physical analysis method, a sample for physical analysis and a preparing method thereof are provided. The preparing method of the sample for physical analysis includes: providing a sample to be inspected; and forming a contrast enhancement layer on a surface of the sample to be inspected. The contrast enhancement layer includes a plurality of first material layers and a plurality of second material layers stacked upon one another. The first material layer and the second material layer are made of different materials. Each one of the first and second material layers has a thickness that does not exceed 0.1 nm. In an image captured by an electron microscope, a difference between an average grayscale value of a surface layer image of the sample to be inspected and an average grayscale value of an image of the contrast enhancement layer is at least 50.

Abstract: A method for manufacturing a color slide for an automobile projection lamp includes: forming a plurality of same color pattern units on a glass substrate, each of the color pattern units being composed of a plurality of color coating layers. The plurality of color coating layers are formed by sequentially depositing materials having different colors on a surface of the glass substrate in accordance with different colors. Finally, the glass substrate is cut and separated in unit of one color pattern unit to form an independent color slide with the color pattern. The color slide can be mounted to an automobile projection lamp system for projecting the color pattern.

Abstract: A light-emitting apparatus for an automobile sunroof with a changing display pattern is provided, comprising: a light-guiding layer, a light-emitting module, and a fixing batten; wherein a coating layer is provided on the first surface of the light-guiding layer, and the coating layer includes a first pattern and the second pattern, the second surface of the light-guiding layer includes a third pattern; the light-emitting module includes a plurality of first light-emitting elements, second light-emitting elements, third light-emitting elements, and limiting blocks; the first light-emitting element emits ultraviolet light to make the first pattern produce a fluorescent reaction; the second light-emitting element emits infrared light to make the second patterns produce a fluorescent reaction; the third light-emitting element emits primary color light to make the third pattern appear through reflection and refraction.

Abstract: A method for manufacturing a color slide for an automobile projection lamp includes: forming a plurality of same color pattern units on a glass substrate, each of the color pattern units being composed of a plurality of color coating layers. The plurality of color coating layers are formed by sequentially depositing materials having different colors on a surface of the glass substrate in accordance with different colors. Finally, the glass substrate is cut and separated in unit of one color pattern unit to form an independent color slide with the color pattern. The color slide can be mounted to an automobile projection lamp system for projecting the color pattern.