Luminaire Collimator and Diffuser for Glare Control
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Solution Overview
Problem
Existing workplace lamps struggle to minimize glare while maintaining sufficient illumination, and they often have high manufacturing and assembly costs due to complex designs.
Innovation Solution
A lamp design featuring a collimator for directional light emission, a diffuser for diffuse emission, and an optical element with a clear light-emitting element that extends between the diffuser and optical elements, allowing for adjustable light distribution and minimizing glare with a compact structure, using materials like PMMA for the light-emitting element and an integrated lamp cover to reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a compact lamp design is used to reduce manufacturing costs, then production costs are reduced, but glare control becomes more difficult
Solution Approach 1:
The patent implements nesting by placing the collimator inside the light-emitting element, and the diffuser element inside the collimator structure. This nested arrangement allows multiple optical components to occupy minimal space while maintaining their individual functions for glare control and light distribution, resolving the contradiction between compact design and glare control.
Solution Approach 2:
The patent utilizes the longitudinal dimension of the lamp by extending the light-emitting element in the longitudinal direction rather than increasing width or height. This dimensional approach allows the lamp to maintain a small cross-sectional area for cost-effective manufacturing while providing sufficient space for optical components to control glare effectively along the length of the lamp.
2Object-affected harmful factors
If optical components are added to minimize glare, then UGR value is reduced, but device complexity increases
Solution Approach 1:
The patent merges multiple functions into integrated components. The light-emitting element serves both as the light source housing and as the collimator structure. The diffuser element is integrated into the existing lamp geometry rather than being a separate additive component. This merging approach achieves glare control (UGR < 19) while minimizing the increase in device complexity.
Solution Approach 2:
The light-emitting element is designed to serve multiple functions simultaneously: it houses the light source, acts as the collimator for directional light emission, and provides structural support. This multi-functionality reduces the number of separate components needed, thereby controlling device complexity while still achieving the required glare reduction through its collimating function.
3Volume of stationary object
If a small construction volume is used, then manufacturing costs are reduced, but light distribution control becomes more difficult
Solution Approach 1:
The patent implements adjustability by allowing the optical element to be positioned at different locations along the longitudinal axis of the lamp. This dynamic positioning capability enables control over light distribution characteristics without increasing the overall lamp volume, as the adjustment occurs within the existing longitudinal space rather than requiring additional volume.
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
The design achieves a Unified Glare Rating (UGR) of less than 19 with high luminous efficiency (>70%) and allows for easy adjustment of light distribution, while reducing the lamp's overall volume and production costs.
Implementation Method 1
a collimator (5) for essentially directional light emission of the light emitted by the illuminant (2)
Implementation Method 2
a diffuser element (9) for essentially diffuse light emission of the light emitted by the collimator (5)
Implementation Method 3
an optical element (13) for defined light emission of the light emitted by the diffuser element (9)
Data Source
Figure 1
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AI summary
The invention relates to a luminaire (1), in particular a workplace luminaire, having a lighting means (2), a collimator (5) for emitting light emitted by the lighting means (2) in a substantially directed manner, a diffuser element (9) for emitting the light emitted by the collimator (5) in a substantially diffused manner, an optical element (13) for emitting the light emitted by the diffuser element (9) in a defined manner, and a clear light emitting element (10) which extends between the diffuser element (9) and the optical element (13) in order to delimit an area (R) together with the diffuser element and the optical element.