Optical Detecting Assembly Light Guide Merging Sensors
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Solution Overview
Problem
Existing optical detecting assemblies require multiple sets of optical sensors, converting circuits, and comparators, making them costly and complex in structure.
Innovation Solution
An optical detecting assembly that uses a light guide member to direct optical signals to a single photosensitive element, simplifying the structure and reducing manufacturing costs by eliminating the need for multiple sets of sensors and circuits, and includes additional components like signal processing, amplifying, and filtering circuits for improved signal processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sets of optical sensors, converting circuits, amplifying circuits, and comparators are used to detect light beams at different positions, then the detection function is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges multiple detection functions into a single photosensitive element by using a light guide member with multiple light receiving portions. Instead of using separate optical sensors, converting circuits, amplifying circuits, and comparators for each detection position, the invention combines all these functions into one integrated detection system where the light guide member directs light from different positions to a single photosensitive element, thereby reducing device complexity while maintaining detection capability
Solution Approach 2:
The light guide member serves multiple functions simultaneously: it acts as a light transmitting member to guide light from different positions, and it provides multiple light receiving portions that can detect light beams at different spatial locations. This multi-functional design eliminates the need for separate detection systems for each position, reducing overall system complexity
2Measurement precision
If multiple sets of optical sensors and circuits are used to detect light beams at different positions, then the detection accuracy is improved, but the manufacturing cost increases
Solution Approach 1:
The invention combines multiple detection functions into a single photosensitive element, eliminating the need to manufacture and assemble multiple separate optical sensors, converting circuits, amplifying circuits, and comparators. This single-integration approach significantly reduces manufacturing cost while maintaining the ability to detect light beams at different positions through the multiple light receiving portions of the light guide member
3Difficulty of detecting and measuring
If independent receiving circuits are used for each detection position, then the signal processing capability is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple independent receiving circuits into a single signal processing path. Instead of having separate converting circuits, amplifying circuits, and comparators for each detection position, the invention uses one photosensitive element with one set of signal processing circuits that handles signals from all light receiving portions of the light guide member, thereby reducing circuit complexity while maintaining signal processing capability
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 optical detecting assembly effectively processes optical signals at different positions using a single set of photosensitive members, simplifying the structure and reducing costs while maintaining accurate signal processing and interference immunity.
Implementation Method 1
a photosensitive element configured to receive an optical signal and convert it into an electrical signal
Implementation Method 2
a light guide member comprising a first portion for receiving a light beam and guiding the light beam to the photosensitive element
Data Source
AI summary
An optical detecting assembly includes: a photosensitive element configured to receive an optical signal and convert it into an electrical signal; and a light guide member comprising a first portion for receiving a first light beam from a rotating light source at a first time point and guiding the first light beam to the photosensitive element and a second portion for receiving a second light beam from the rotating light source at a second time point and guiding the second light beam to the photosensitive element. A distance between the optical detecting assembly and the rotating light source is calculated based on a distance between the first portion and the second portion, a time difference between the first time point and the second time point, and a rotating speed of the rotating light source.