Light emitting assembly, time of flight camera module, and mobile terminal

A time of flight camera module, comprising:

• a light emitting assembly;
• and
• a photosensitive assembly,
• wherein the light emitting assembly comprises:
• a substrate;
• a laser light source array, wherein the laser light source array is disposed on the substrate;
• and
• a lens array, wherein the lens array is disposed on a light emitting side of the laser light source array, each lens in the lens array is disposed opposite to at least one laser light source in the laser light source array, a light emitting surface of the each lens is a spherical surface, and at least some laser light sources in the laser light source array are eccentrically arranged with corresponding lenses in the lens array;
• wherein the laser light source array is configured to emit light, and the light emitted from the laser light source array is projected onto a target object through the lens array;
• and
• wherein the photosensitive assembly is configured to receive the light reflected from the target object, and measure a distance to the target object based on a time difference or a phase difference between a time point at which the light is emitted from the light emitting assembly and a time point at which the reflected light is received by the photosensitive assembly,
• wherein the laser light source array forms N light emitting regions, there are at least two laser light sources in each light emitting region of the N light emitting regions, N is an integer greater than 1, and eccentric distances of some laser light sources in every two light emitting regions are equal or eccentric distances of all laser light sources in every two light emitting regions are unequal, and
• wherein each light emitting region of the N light emitting regions has a respective power supply unit of a plurality of power supply units, the respective power supply unit is configured to turn on and turn off all laser light sources in a corresponding light emitting region of the N light emitting regions, and the plurality of power supply units are connected in parallel.

A mobile terminal comprising a time of flight camera module that comprises:

• a light emitting assembly and a photosensitive assembly,
• wherein the light emitting assembly is the light emitting assembly comprises:
• a substrate;
• a laser light source array, wherein the laser light source array is disposed on the substrate;
• and
• a lens array, wherein the lens array is disposed on a light emitting side of the laser light source array, each lens in the lens array is disposed opposite to at least one laser light source in the laser light source array, a light emitting surface of the each lens is a spherical surface, and at least some laser light sources in the laser light source array are eccentrically arranged with corresponding lenses in the lens array;
• wherein the laser light source array is configured to emit light, and the light emitted from the laser light source array is projected onto a target object through the lens array;
• and
• wherein the photosensitive assembly is configured to receive the light reflected from the target object, and measure a distance to the target object based on a time difference or a phase difference between a time point at which the light is emitted from the light emitting assembly and a time point at which the reflected light is received by the photosensitive assembly,
• wherein the laser light source array forms N light emitting regions, there are at least two laser light sources in each light emitting region of the N light emitting regions, N is an integer greater than 1, and eccentric distances of some laser light sources in every two light emitting regions are equal or eccentric distances of all laser light sources in every two light emitting regions are unequal, and
• wherein each light emitting region of the N light emitting regions has a respective power supply unit of a plurality of power supply units, the respective power supply unit is configured to turn on and turn off all laser light sources in a corresponding light emitting region of the N light emitting regions, and the plurality of power supply units are connected in parallel.