Laser Distance Measuring Device Light Splitting Array
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Solution Overview
Problem
Existing laser distance measuring devices face challenges with slow response times and the need for multiple feedback adjustments when measuring short distances, leading to inefficiencies in high-speed and high-accuracy measurements.
Innovation Solution
A laser distance measuring device that employs a light splitting array of spectroscopes to split and attenuate light signals, allowing for simultaneous reception and selection of light signals, thereby reducing the need for multiple feedbacks and enabling quick measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the laser distance measuring device uses traditional feedback adjustment method to measure short distance targets, then the photoelectric receiver can collect data within effective measuring range, but the measurement process becomes time-consuming and slow
Solution Approach 1:
The patent divides the single light signal path into multiple parallel paths using a light splitting array consisting of multiple spectroscopes. Each spectroscope splits the returning light signal into multiple copies that are simultaneously received by different photoelectric receivers. This segmentation allows parallel processing of the same measurement task, eliminating the need for sequential feedback adjustments and significantly reducing measurement time while maintaining accuracy.
Solution Approach 2:
The patent pre-establishes multiple light signal paths through the light splitting array before measurement is needed. The spectroscopes are pre-positioned and configured to split light signals at specific ratios. When a measurement is taken, the system immediately has multiple reception channels ready, eliminating the need for real-time feedback adjustments and enabling instant parallel measurement.
2Illumination intensity
If the laser distance measuring device emits high energy light signal for short distance measurement, then the signal strength is sufficient, but the photoelectric receiver becomes saturated and cannot measure accurately
Solution Approach 1:
The patent segments the high energy returning light signal into multiple lower energy copies using the light splitting array. Each spectroscope divides the intense light signal into several beams with reduced energy levels, which are then simultaneously received by multiple photoelectric receivers. This prevents receiver saturation while maintaining sufficient signal strength for accurate measurement.
Solution Approach 2:
The patent uses partial action by splitting the light signal such that each photoelectric receiver gets only a portion of the total light energy. The light splitting ratios are configured so that each receiver receives enough light for accurate measurement without exceeding its saturation threshold. This partial distribution of light energy solves the saturation problem while maintaining measurement accuracy.
3Measurement precision
If the laser distance measuring device uses multiple feedback adjustments to achieve effective measurement, then accurate measurement is possible, but the device complexity and operation time increase
Solution Approach 1:
The patent combines multiple light signal reception functions into a single integrated light splitting array structure. Instead of having separate adjustment mechanisms for each receiver, the spectroscopes are combined in series to form a unified system that simultaneously directs multiple light copies to multiple receivers. This merging reduces operational complexity while maintaining the ability to perform accurate simultaneous measurements.
Solution Approach 2:
The light splitting array serves multiple functions simultaneously: it splits light signals, attenuates energy levels, distributes signals to multiple receivers, and enables parallel measurement. This multi-functional design eliminates the need for separate feedback adjustment mechanisms for each receiver, reducing overall system complexity while maintaining measurement 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
This approach allows for a wider measurement range and faster data acquisition, eliminating the need for multiple adjustments and significantly reducing operating time.
Implementation Method 1
the returning light signal is split by the spectroscope nearest to the receiving lens into a penetrating light signal penetrating through the spectroscope and a reflected light signal reflected by the spectroscope according to a light splitting ratio
Implementation Method 2
a photoelectric conversion element converts the light signal into an electric signal for processing
Data Source
AI summary
A laser distance measuring device and a method of use thereof are described. The laser distance measuring device can include an emitting unit (4), a reflecting mirror (3), an emitting lens (2), a receiving lens (1), and a receiving unit (8); the laser distance measuring device can further include: at least one spectroscope (7) provided between the receiving lens (1) and the receiving unit (8), which is arranged successively on the same optical propagation path; at least one spectrum receiving unit (9) arranged in a one-to-one correspondence with the spectroscope (7). The technical solution has a wider measurement range and is adaptable to measured targets in different distances; a multiplicity of feedbacks and adjustments is not necessary, and the acquirement of the measurement data can be achieved in a short time, therefore the operating time is saved.