Tiltable Optics Carrier Body for Electro-Optical Measuring Device
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Solution Overview
Problem
Electro-optical measuring devices, such as hand-held laser range finders, face inaccuracies and measurement errors due to misalignment of the optical axis during manufacture or assembly, which cannot be corrected in prior art devices as the optics carrier body cannot be readjusted relative to the housing, especially due to thermal or mechanical deformations.
Innovation Solution
The optics carrier body is designed to be tiltable by a few degrees, allowing adjustment of its optical axis relative to the measuring device housing, with features like pins and an adjusting screw for precise alignment, and can be made of lightweight yet stable materials like magnesium or aluminum alloys, enabling intuitive targeting and precise measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the optics carrier body is made fixed and stable for manufacturing, then manufacturing precision is improved, but adaptability deteriorates because the optical axis cannot be readjusted after assembly
Solution Approach 1:
The optics carrier body is designed with a tiltable mounting mechanism that allows dynamic adjustment of the optical axis relative to the housing. The carrier body can be tilted by a few degrees about a pivot axis, enabling post-assembly readjustment while maintaining operational stability. This transforms the static fixed mounting into a dynamically adjustable system.
2Adaptability or versatility
If the optics carrier body is made tiltable for adjustment, then adaptability is improved, but stability deteriorates due to potential misalignment
Solution Approach 1:
The tilting mechanism is designed with localized adjustment capability - the optics carrier body can be tilted as a unit while all optical components maintain their relative positions to each other. The adjustment is constrained to a specific degree of freedom (tilting about a pivot axis) rather than allowing arbitrary movement, preserving local stability while enabling global adjustment.
3Measurement precision
If manual adjustment mechanisms are added for optical axis alignment, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The adjustment mechanism changes the mounting parameters of the optics carrier body - specifically the tilt angle relative to the housing. By providing controlled adjustability in this geometric parameter, the system achieves precise optical axis alignment without requiring complex active control systems, maintaining simplicity while improving precision.
Data Source
Figure 1~2
Figure 3~4
AI summary
The device has an optical transmission path with an optical transmitter (21) for transmitting measuring signals. A receiving path has a receiving lens for focusing the measuring signals in a direction to a receiver. A single-piece optic-carrier body (10) with an optical axis accommodates electronic components of the transmission and receiving paths. The body is marginally arranged relative to a measuring device housing (5) in an inclined manner so that the optical axis is adjusted and readjusted in a plane relative to the housing. The body is partially lined by form-flexible foam rubber.