Abstract: A lamp device includes a light emitting unit and a reflecting unit including first and second reflecting modules. The first reflecting module reflects light towards the second reflecting module and has a reflectivity substantially over 70% for light of wavelength ranging from 550 nm to 800 nm. The second reflecting module reflects light towards the first reflecting module and has a reflectivity that substantially ranges from 50% to 75% for light of wavelength ranging from 460 nm to 700 nm. The light emitting unit emits light toward the reflecting unit such that at least a part of the light emitted by the light emitting unit is reflected from one of the first reflecting module and the second reflecting module.

Abstract: A lamp cover adapted for mounting to a vehicle lamp having an optical axis includes a light-transmissible cover body, an electrically-conductive film being light-transmissible and being formed on the cover body, and an electrode unit being electrically connected to the electrically-conductive film. The electrically-conductive film is adapted for converting electrical energy provided by the electrode unit into thermal energy to heat the cover body.

Abstract: A high-reflection multilayer coating, which includes a baseplate, a reflecting layer and a composite reflecting layer, in which the reflecting layer is contiguously disposed between the baseplate and the composite reflecting layer, and the composite reflecting layer is provided with a first structure layer and a second structure layer. Moreover, the first structure is mutually contiguously disposed on the reflecting layer. Accordingly, the present invention is able to achieve 95˜100% high light reflectivity over a wavelength range of 400˜800 nanometers, thus increasing light reflectivity and extending the range of reflection. The present invention is able to increase the degree of illumination, brightness and uniformity when used in various types of lamps.