Dichroic Filter Detector for Mobile Position Tracking
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Solution Overview
Problem
Existing detectors for determining the position of an object in space are often bulky, costly, and require significant computing power, making them unsuitable for mobile applications such as smartphones. Additionally, distance measurement technologies like depth from photon ratio have constraints with respect to illumination and light source positioning, which complicates implementation in mobile devices.
Innovation Solution
A detector system comprising a dichroic filter, an optical sensor with a light-sensitive area, and an evaluation device that determines sensor signals from light beams of different wavelengths. This system evaluates a combined signal from the sensor signals to determine the longitudinal coordinate of an object, allowing for accurate position detection with minimal computing power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing detectors are used for position detection, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple detection functions into a single detector device that can determine both longitudinal and lateral coordinates of objects. The detector integrates a light source, optical elements, and sensor components into one unified structure, eliminating the need for separate detection systems while maintaining high measurement precision.
Solution Approach 2:
The detector is designed to perform multiple functions: it can detect objects at different distances (longitudinal coordinate) and positions (lateral coordinate) using the same device. The detector can also operate with different light sources and detect various types of objects, making it a universal solution for diverse positioning applications.
2Measurement precision
If existing detectors are used for position detection, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
The patent employs cost-effective optical components and sensor elements that can be manufactured at low cost. The detector uses standard optical elements and common sensor types rather than expensive specialized components, enabling economical production while maintaining adequate measurement precision for mobile applications.
Solution Approach 2:
The patent extracts only the essential components needed for position detection, eliminating unnecessary complex mechanisms. By focusing on the core functional elements (light source, optical path, sensor) and removing redundant parts, the design achieves cost-effective manufacturing without sacrificing measurement capability.
3Speed
If depth from photon ratio technology is used, then speed of distance determination is improved, but adaptability to mobile applications deteriorates
Solution Approach 1:
The patent creates a dynamic detection system that can rapidly determine object positions at various distances and orientations. The detector can quickly switch between detecting longitudinal and lateral coordinates and adapt to different object positions in real-time, providing the speed and flexibility needed for mobile applications such as augmented reality and gesture recognition.
Solution Approach 2:
The detector utilizes changes in optical parameters (light intensity, wavelength, angle) to determine object position. By measuring how these parameters change with object distance and position, the system achieves fast distance determination while maintaining adaptability to various mobile application scenarios through software-based evaluation of the optical signals.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The detector system provides reliable and accurate position detection of objects in space with low technical effort and resource requirements, making it suitable for mobile applications. It overcomes the constraints of existing technologies by enabling efficient distance measurement with minimal computing power.
Implementation Method 1
at least one dichroic filter; at least one optical sensor, wherein the optical sensor has at least one light-sensitive area, wherein the optical sensor is designed to generate at least one sensor signal in response to an illumination of its light-sensitive area by the light beam having passed through the dichroic filter
Data Source
AI summary
Described herein is a detector for determining a position of at least one object. The detector includes:at least one dichroic filter;at least one optical sensor; andat least one evaluation device. Also described herein are a method for determining a position of the at least one object and a method of using the detector.