Abstract: A light-emitting diode includes a substrate, a semiconductor stack layer, a DBR stack structure that includes a first material layer and a second material layer, which are repeatedly stacked. Optical thicknesses of the first material layer and the second material layer are capable of: reflecting light within a first wavelength range and within a first angle range, transmitting a part of light within the first wavelength range and within a second angle range, where the first angle range is less than the second angle range. A reflectivity in response to light with at least one wavelength in a second wavelength range and having an incident angle of 0-10 degrees is ?40%, the DBR stack structure has a color, and wavelengths contained in the second wavelength range are ? a critical wavelength of the color corresponding to the DBR stack structure through which AOI testing passes.

Abstract: A press-type makeup pen includes an outer cover, a button, an inner cover, a middle sheath, and a base assembly that are coaxially arranged. Pushing-pressing members are provided in the button. Hook claws are provided in the inner cover. The middle sheath includes a sleeve and a head assembly connected to the top of the sleeve. Spring pieces are provided on the top of the sleeve and located outside the head assembly. Barbs are provided on the spring pieces. The inner cover is fixed in the outer cover. The button is inserted into the inner cover and can move up and down in the inner cover. The middle sheath is provided in the outer cover, and the head assembly is inserted into the button. The base assembly is inserted into the sleeve of the middle sheath. An elastic member is provided between the button and the middle sheath.