Dual-Axis Lighting Device for IP Protection and Orientation
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Solution Overview
Problem
Existing outdoor lighting devices have limited orientation capabilities, which conflict with the need for high IP protection and mobility, and lack a compact, aesthetically pleasing design.
Innovation Solution
A lighting device with a dual-axis rotation system allowing 360° orientation of the light beam, combined with a compact and sealed structure using geometric couplings and sealing rings for IP protection, and a shade with a glass plate for additional protection and reduced component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lighting source is made movable to allow orientation adjustment, then the orientation flexibility is improved, but the IP protection level deteriorates
Solution Approach 1:
The device is divided into separate functional modules: a fixed sealed housing containing the lighting source, and a separate adjustable optical system (reflector/lens assembly) that can be rotated independently. This segmentation allows the housing to maintain IP protection while the optical components provide orientation flexibility.
Solution Approach 2:
A sealed bearing or rotary joint mechanism acts as an intermediary between the fixed housing and the movable optical assembly. This intermediary component enables rotational movement while maintaining the seal integrity, allowing the lighting source to change orientation without compromising IP protection.
2Reliability
If the structure is made compact and sealed for outdoor use, then the IP protection and durability are improved, but the orientation capability deteriorates
Solution Approach 1:
The patent combines a sealed housing structure with an integrated adjustable optical system. The reflector and lens are merged into a single adjustable assembly that rotates as one unit, allowing compact design while maintaining full orientation capability through the combined mechanical advantage of both components.
Solution Approach 2:
The optical system is designed with dynamic adjustment capabilities through a rotation mechanism that allows the sealed housing to orient the light beam in multiple directions. The dynamic element is the adjustable optical assembly that can rotate while the main housing remains sealed and stationary.
3Device complexity
If a single rotation axis is used, then the device complexity is reduced, but the orientation range deteriorates
Solution Approach 1:
The patent transitions from single-axis rotation to dual-axis rotation, adding another dimension of movement. The first axis allows vertical adjustment of the lighting source, while the second axis allows horizontal rotation of the optical assembly, creating comprehensive three-dimensional orientation capability without excessive complexity.
Data Source
Figure 1
Figure 2~2a
Figure 3~3a
AI summary
A lighting device (1) comprises an anchoring base (10) on the ground or wall, a stem (12), a lamp body (14) supported by the stem (12), and a lighting source (16) supported by the lamp body (14) so as to make a projector that emits a light beam oriented radially with respect to the stem (12). A proximal stem portion (12a) is axially rotatable with respect to the anchoring base (10) along a first rotation angle (α), and the lamp body (14) is axially rotatable with respect to a distal stem portion (12b) along a second rotation angle (β).