18492647. LIGHT-PROJECTION DEVICE AND RANGE FINDING APPARATUS THAT USES LIGHT-PROJECTION UNIT simplified abstract (CANON KABUSHIKI KAISHA)
LIGHT-PROJECTION DEVICE AND RANGE FINDING APPARATUS THAT USES LIGHT-PROJECTION UNIT
Organization Name
Inventor(s)
Kohei Okamoto of Kanagawa (JP)
Shunichi Wakashima of Tokyo (JP)
Takashi Hanasaka of Tokyo (JP)
LIGHT-PROJECTION DEVICE AND RANGE FINDING APPARATUS THAT USES LIGHT-PROJECTION UNIT - A simplified explanation of the abstract
This abstract first appeared for US patent application 18492647 titled 'LIGHT-PROJECTION DEVICE AND RANGE FINDING APPARATUS THAT USES LIGHT-PROJECTION UNIT
Simplified Explanation
The patent application describes a light-projection device used for range finding by measuring the time difference between emitting light and detecting reflected light.
- Light-projection device includes a light source array with multiple light-emitting elements arranged in two dimensions.
- Device also includes a light-projection lens to adjust the light projection range.
- A driving device changes the relative positions between the light source array and the light-projection lens.
- A light source control unit switches on the light source array when in different positions.
- Potential Applications
- Distance measurement in surveying and mapping
- Object detection in robotics and automation
- 3D scanning and imaging technologies
- Problems Solved
- Accurate distance measurement without physical contact
- Improved precision in range finding applications
- Enhanced efficiency in object detection processes
- Benefits
- Increased accuracy in distance measurement
- Versatile applications in various industries
- Enhanced automation and efficiency in processes
Original Abstract Submitted
Disclosed is a light-projection device that is used for a range finding apparatus that computes a distance to an object that has reflected light, by measuring a time difference between a time when light is emitted and a time when reflected light is detected. The light-projection device comprises a light source array in which a plurality of light-emitting elements are two-dimensionally arranged and a light-projection lens that adjusts a light projection range of light emitted from the light source array. The light projection device further comprises a driving device that changes relative positions between the light source array and the light-projection lens and a light source control unit that switches on the light source array under conditions where the light source array is in different positions.
