Adjustable Bollard Shroud for Landscape Lighting Beam Control
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Solution Overview
Problem
Existing outdoor landscape lighting systems lack the ability to easily adjust lighting beam widths to produce varied illuminating effects without altering the illumination source or using dimmers.
Innovation Solution
A landscape lighting fixture featuring a cylindrical bollard shroud with a vertically adjustable path hat support system that allows for the path hat to be adjusted along the riser element, enabling the creation of wider or narrower light beam angles without changing the light source's illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different lighting sources or dimmers are used to change illumination effects, then the lighting beam width can be adjusted, but the device complexity increases
Solution Approach 1:
The fixture is divided into separate functional components: a stationary housing containing the light source, and a separate adjustable path hat component. This segmentation allows the path hat to be independently adjusted to change beam width without affecting the light source or requiring complex integrated control systems.
Solution Approach 2:
The path hat is made vertically adjustable relative to the housing, transforming a static fixture into a dynamic one. This mechanical adjustability allows users to change the lighting beam width by moving the path hat to different positions, providing versatility without electronic complexity.
2Adaptability or versatility
If the light source illumination is adjusted to change lighting effects, then the beam width can be modified, but the energy consumption changes
Solution Approach 1:
By separating the light source function from the beam shaping function (performed by the adjustable path hat), the system allows beam width adjustment without changing light source intensity. This maintains constant energy consumption while achieving different lighting effects through geometric adjustment rather than illumination intensity changes.
3Adaptability or versatility
If multiple different lighting fixtures are used to achieve varied illuminating effects, then the lighting versatility is improved, but the system complexity increases
Solution Approach 1:
The fixture housing is designed as a universal base that can accommodate the same adjustable path hat component to produce multiple lighting effects (wide beam, narrow beam, focused beam) by simply adjusting the path hat position. This eliminates the need for multiple different fixture types, reducing system complexity while maintaining versatility.
Data Source
AI summary
A landscape lighting fixture utilizes a cylindrical bollard shroud member which houses an electrical light source, e.g. an LED module. The shroud number extends upwardly from an elongated riser element. A vertically adjustable path hat support system affixed to a path hat circumscribes the shroud member, thereby allowing the path hat to be vertically adjustable in relation to the shroud member. The path hat and path hat support system can also be vertically adjustable along the riser element, without an attached shroud member. In either case, the adjustability of the path hat allows the lighting fixture to provide a wider or narrower light beam angle from the light source without adjusting the illumination from the light source.