Optical module

The utility model provides an optical module. The optical module comprises a substrate, a tube shell, a wavelength conversion device, a laser chip, a light guiding element and a light receiving lens. A tube shell is arranged on a substrate, a wavelength conversion device is arranged at one end of the tube shell, the tube shell and the wavelength conversion device jointly define a closed space, and a laser chip and a light guide element are arranged in the closed space to guide a light path, so that exciting light emitted by the laser chip irradiates the wavelength conversion device; according to the optical module, due to the fact that the interval is arranged between the wavelength conversion device and the light receiving lens, the size of light spots can be increased in the process that the light rays irradiate the light receiving lens after the light rays are emitted out of the wavelength conversion device, and then the light expansion amount can be increased; and finally, the definition of light emitted