Laser Distance Meter Exit Opening Positioning
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Solution Overview
Problem
Existing laser distance measuring devices face challenges in stability during measurements, especially on uneven ground, and are limited in measuring small distances due to their design, where the exit opening for the laser beam is typically on the front of the housing, leading to instability and restricted accessibility.
Innovation Solution
The laser device repositions the exit opening for the laser beam to the upper side, underside, or side surfaces of the housing, utilizing these surfaces as reference marks, and provides multiple exit openings to allow for stable measurements from various angles and directions, enabling distance calculations in cramped conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the exit opening for the laser beam is arranged on the front of the housing, then the device structure is simple, but the device becomes unstable on uneven ground and cannot measure small distances
Solution Approach 1:
The patent moves the exit opening from the front surface to the upper or lower surface of the housing, changing the spatial dimension of the laser beam emission. This allows the device to utilize its own housing surfaces as stable reference marks, enabling measurements on uneven ground and for small distances that were previously impossible with front-mounted exit openings.
2Adaptability or versatility
If the exit opening is positioned on the front surface, then the device design is conventional, but accessibility to difficult-to-reach targets is restricted
Solution Approach 1:
By positioning exit openings on the upper and lower surfaces of the housing in addition to the front surface, the patent enables the device to measure distances to targets that are difficult to reach from the front, such as targets above or below the device level, thereby improving accessibility without excessive structural complexity.
Solution Approach 2:
The patent divides the housing into multiple surfaces (front, upper, lower) with separate exit openings, allowing the device to selectively use different exit openings based on the measurement scenario, thereby improving adaptability to various measurement conditions.
3Adaptability or versatility
If multiple exit openings are provided for stable measurements from various angles, then measurement versatility is improved, but device complexity increases
Solution Approach 1:
The patent segments the housing into multiple functional surfaces with dedicated exit openings for different measurement scenarios. Each exit opening serves a specific purpose (front for general measurements, upper/lower for difficult-to-reach targets), allowing the device to handle various measurement angles and positions while maintaining a relatively simple overall structure.
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 configuration ensures a stable stand for the device, allows for precise positioning of the laser beam, and enables measurement of small distances and distances between difficult-to-reach targets, enhancing operational comfort and versatility.
Implementation Method 1
The light from the laser beam reflected or scattered by the surface of the target object, referred to below as the received beam, is detected by the laser distance measuring device
Implementation Method 2
The light from the laser beam reflected or scattered by the surface of the target object
Implementation Method 3
The evaluation device determines the distance value to the target object from the time difference between the laser beam emitted by the beam source and the received beam detected by the detector
Data Source
Figure 1a
Figure 1b
Figure 2
AI summary
The device (40) has a measuring device (41) determining distance values from receiving rays (51) that are emitted from a target object (4). Exit openings (46) are provided for decoupling a laser beam from a housing (9). A display device (6) displays distance values, and a control device (7) is provided for controlling the laser device and for initialization of the distance measurement. The display and control devices are arranged on an upper side (10) of the housing. The exit openings are arranged in the upper side, lower side (11) or side surfaces (14, 15) of the housing.