Time of flight camera
View Patent ↗The present disclosure provides a time-of-flight camera, comprising a light-emitting module and a light-receiving module. The light-emitting module comprises a light source component, a light-reflecting component, and a light-diffusing component. The light source component emits a first light in a first direction. The light-reflecting component and the light-diffusing component are disposed on the light path of the first light. A second light formed by the first light passes through the light-reflecting component and the light-diffusing component. The second light travels toward a second direction to an object to be measured. The object to be measured reflects the second light. The first direction is intersecting with the second direction. The light-receiving module receives the reflected second light and performs the function of sensing.
1. A time-of-flight camera, comprising:
a light-emitting module comprising a light source component, a light-reflecting component and a light-diffusing component, the light source component emitting a first light in a first direction, the light-reflecting component and the light-diffusing component being disposed on the light path of the first light, a second light formed by the first light passing through the light-reflecting component and the light-diffusing component, the second light traveling toward a second direction to an object to be measured, the object to be measured reflecting the second light, the first direction being intersecting with the second direction; and
a light-receiving module receiving the reflected second light and performing the function of sensing;
wherein the light-diffusing component is disposed between the light source component and the light-reflecting component and corresponds to a light-reflecting surface of the light-reflecting component the first light is reflected by the light-reflecting component to generate the second light traveling in the second direction after passing through the light-diffusing component.
2. The time-of-flight camera according to claim 1 , wherein the light-reflecting component comprises a prism.
3. The time-of-flight camera according to claim 2 , further comprising a light reflection driving mechanism; the light reflection driving mechanism is connected to the light-reflecting component and drives the light-reflecting component to move.
4. The time-of-flight camera according to claim 1 , further comprising a light reflection driving mechanism; the light reflection driving mechanism is connected to the light-reflecting component and drives the light-reflecting component to move.
5. The time-of-flight camera according to claim 4 , wherein the light reflection driving mechanism drives the light-reflecting component to move linearly.
6. The time-of-flight camera according to claim 4 , wherein the light reflection driving mechanism drives the light-reflecting component to rotate.
7. The time-of-flight camera according to claim 1 , wherein the beam angle of the first light is between 22 and 26 degrees.
8. The time-of-flight camera according to claim 7 , wherein the beam angle of the second light is between 45 and 60 degrees.
9. The time-of-flight camera according to claim 1 , wherein the light source component is a vertical-cavity surface-emitting laser.