Optical Testing Apparatus Delayed Light Signal Simulation
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Solution Overview
Problem
Conventional distance measuring instruments require extensive testing sites due to the need to maintain a specific expected distance from the measuring object, which is impractical and inefficient.
Innovation Solution
An optical testing apparatus that introduces a light signal with a predetermined delay to the measuring object, mimicking the time it would take for incident light to travel from the instrument to the object and back, allowing for accurate testing in a reduced distance setting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the optical measuring instrument is tested at the expected distance (e.g., 200 m), then the measurement accuracy is validated, but the testing site area becomes excessively large
Solution Approach 1:
The patent creates a virtual copy of the distant measurement scenario by using a light signal providing section that generates light signals with a predetermined delay time. This delay time corresponds to the time it would take for light to travel to the expected distance and back, effectively copying the temporal characteristics of a 200m measurement without requiring the physical space
Solution Approach 2:
The patent changes the temporal parameter (delay time) of the light signal to simulate different measurement distances. By adjusting the delay time in the light signal providing section, the system can simulate measurements at the expected distance while maintaining a short physical distance between the instrument and the light-receiving section, thus resolving the contradiction between measurement precision validation and testing site area
2Area of stationary object
If the instrument is placed close to the measuring object for compact testing, then the testing site area is reduced, but the measurement time characteristics are no longer representative of actual usage
Solution Approach 1:
The patent applies preliminary action by pre-calculating and pre-setting the delay time in the light signal providing section to match the expected light travel time to the measuring object. This preliminary timing adjustment ensures that even though the physical distance is short, the temporal characteristics of the measurement process accurately reflect what would occur at the expected distance, thus preventing loss of time accuracy
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
Enables accurate testing of distance measuring instruments in a smaller space, preventing the need for extensive testing sites and allowing for more efficient validation of measurement capabilities.
Implementation Method 1
an incident light receiving section that receives incident light
Implementation Method 2
a light signal providing section that provides a light signal to the incident object after a predetermined delay time since the incident light receiving section has received the incident light
Implementation Method 3
a reflected light signal due to reflection of the light signal at the incident object
Data Source
AI summary
An optical testing device for use in testing an optical measuring instrument provides incident light from a light source to an incident object and receives reflected light due to reflection of the incident light at the incident object. The optical testing device includes an incident light receiving section that receives incident light, and a light signal providing section. The light signal providing section provides a light signal to the incident object after a predetermined delay time since the incident light receiving section has received the incident light. A reflected light signal due to reflection of the light signal at the incident object is provided to the optical measuring instrument. The delay time is approximately equal to the time between emission of the incident light from the light source and reception of the reflected light by the optical measuring instrument in the case of actually using the optical measuring instrument.