Abstract: Disclosed are a projection optical path and a projection device. The projection optical path includes a first converged light of a first dual-light source system and a second converged light of a second dual-light source system; a first wavelength light, a second wavelength light, and a third wavelength light are respectively one of red light, green light, and blue light; a fourth wavelength light is within a wavelength range of the red light; the wavelength of the fourth wavelength light is defined as ?1; the wavelength of the one set as the red light among the first wavelength light, the second wavelength light, and the third wavelength light is ?2; ?1 is unequal to ?2; an excitation light source emits an excitation light; and the excitation light is emitted to the first dual-light source system or the second dual-light source system.

Abstract: The projection optical path comprises a triple light source system emitting a first converged light and a single light source system emitting a light with a monochromatic wavelength. The triple light source system comprises a second converged light converged with a light with a first wavelength to form the first converged light. The single light source system comprises a third light source. The light with the first wavelength, the light with the second wavelength, and the light with the third wavelength are respectively one of red light, green light, blue light, a wavelength range of a light with a fourth wavelength is within a wavelength range of the red light. The wavelength of the light with the fourth wavelength is defined as ?1; the wavelength of the red light among the lights with the three wavelengths is ?2, and ?1??2.

Abstract: Disclosed are a projection optical path and a projection device. The projection optical path includes a first converged light of a first dual-light source system and a second converged light of a second dual-light source system; a first wavelength light, a second wavelength light, and a third wavelength light are respectively one of red light, green light, and blue light; a fourth wavelength light is within a wavelength range of the red light; the wavelength of the fourth wavelength light is defined as ?1; the wavelength of the one set as the red light among the first wavelength light, the second wavelength light, and the third wavelength light is ?2; ?1 is unequal to ?2; an excitation light source emits an excitation light; and the excitation light is emitted to the first dual-light source system or the second dual-light source system.

Abstract: The projection optical path comprises: a main optical path; and an auxiliary optical path, a third light source, and a fourth light source, wherein the light with the second wavelength, the light with the third wavelength and the light with the fourth wavelength are sequentially converged into the light with the first wavelength, wherein the light with the first wavelength, the light with the second wavelength and the light with the third wavelength are one of red light, green light, and blue light, respectively, wherein a wavelength range of the light with the fourth wavelength is within a wavelength range of the red light, and a wavelength of the light with the fourth wavelength is defined as ?1, and a wavelength of the red light among the light with the first wavelength, the light with the second wavelength and the light with the third wavelength is defined as ?2, and ?1??2.

Abstract: Disclosed is a waterproof key module, including: a housing with a hollow inner chamber and an opening at an end, comprising a front housing portion and a bottom housing portion secured to each other, and the opening being provided on the front housing portion; a touch component limited in the inner chamber, comprising a touch plate extending out from the opening; and a waterproof adhesive film in a pre-tensioned status and isolating the touch component from the bottom housing portion, an edge of the film being secured to a position where the front housing portion is connected to the bottom housing portion, and the touch component being supported on the film; wherein at least one pressure sensor module is provided between the touch component and the bottom housing portion and configured to generate a pressure signal that represents a pressure degree according to a pressing on the touch component.

Abstract: A waterproof keypad module, comprising a waterproof film (7) which is in a pre-tightened state and which isolates a touch component from a bottom casing (4); an edge of said waterproof film being fixed at the position where a front casing (1) and the bottom casing (4) connect, and said touch component being supported on said waterproof film (7). The edge of said waterproof film is fixed at the position where the front casing (1) and bottom casing (4) connect, wherein the touch component may be completely isolated from the bottom casing (4) by means of the waterproof film (7); thus, even if a gap exists between the touch component and casing, water cannot pass through the waterproof film (7) and enter the bottom casing (4), thus achieving waterproofing of the keypad module.