Illumination Apparatus Holder Segmentation for Code Readers
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Solution Overview
Problem
Existing camera-based code readers face challenges in achieving a homogeneous and adaptable illumination across varying distances, as current solutions require complex and costly mechanisms that are slow and effort-demanding to adjust.
Innovation Solution
An illumination apparatus that adjusts the relative position of the optical transmission system's holder and light transmitter using a setting device, with a fixed point of fixation, allowing for quick and simple movement of low mass to achieve desired light distribution, including a ring-like configuration with multiple lenses and a star-like holder design for flexible adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual component groups such as lenses are made displacable along the optical axis to adapt illumination, then illumination adaptability is improved, but device complexity and cost increase
Solution Approach 1:
The optical transmission system is segmented into a holder that can be independently displaced along the optical axis, separating the illumination adaptation function from the fixed housing structure. This allows the holder to be moved to different positions to adapt the illumination focus without requiring complex mechanisms to move entire component groups.
Solution Approach 2:
The holder is designed to be dynamically displacable along the optical axis while maintaining a fixed point of fixation on the housing. This dynamic positioning capability allows the illumination to be adapted to different distances without requiring the entire optical system to be moved, thereby reducing mechanism complexity.
2Adaptability or versatility
If the optical transmission system is made displacable to adapt illumination focus, then illumination adaptability is improved, but adjustment speed decreases
Solution Approach 1:
By segmenting the optical transmission system into a movable holder, only the lightweight holder needs to be displaced rather than moving entire component groups. This segmentation enables faster adjustment speeds while maintaining illumination adaptability, as the holder can be quickly repositioned along the optical axis.
3Adaptability or versatility
If a large mass is moved to adjust the optical transmission system, then illumination adaptation is achieved, but effort and cost increase
Solution Approach 1:
The optical transmission system is segmented into a lightweight holder that can be independently moved. This segmentation ensures that only the small mass of the holder is displaced during adjustment, rather than moving large component groups, thereby reducing the effort and cost required for illumination adaptation.
Solution Approach 2:
The holder is extracted as a separate, movable component from the fixed housing structure. This extraction allows the holder to be easily displaced along the optical axis with minimal mass, while the fixed housing and other components remain stationary, significantly reducing the effort required for adjustment.
4Ease of manufacture
If fixed illumination is used, then manufacturing simplicity is maintained, but illumination homogeneity over large distances deteriorates
Solution Approach 1:
The illumination system incorporates a dynamically displacable holder that can be positioned to adapt the illumination focus to different distances. This dynamic capability allows the system to maintain illumination homogeneity over large distances by adjusting the holder position, while the overall structure remains simple and easy to manufacture with a fixed housing and light transmitter.
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
Ensures homogeneous illumination over large distances, enables rapid adjustment in the millisecond range with minimal force, and maintains cost-effectiveness, allowing for various illumination scenarios and a large depth of field without the need for alignment or additional mounting steps.
Implementation Method 1
a light transmitter (12) and an optical transmission system (14) held by a holder (24)
Data Source
AI summary
An illumination apparatus (10) for the generation of an illuminated region for a camera-based code reader (100) is provided which comprises at least one light transmitter (12), an optical transmission system (14), a holder (24) for the optical transmission system (14) and a setting device (28), by means of which the holder (24) can be moved whereby the illuminated region can be focused at a working distance and/or be adapted in its dimensions. In this connection the holder (24) is fixed at at least one point of fixation (26) so that the holder (24) is moved relative to the light transmitter (12) in a compulsory guided manner on actuation of the setting device (28), however, maintains its relative position with respect to the light transmitter (12) at the point of fixation.