Enhanced Spectrally and Spatially Modulated Illumination System for Human Circadian Rhythms

Publication ID: 24-11857732_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Spectrally and Spatially Modulated Illumination System for Human Circadian Rhythms,” Published Technical Disclosure No. 24-11857732_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857732_0006_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,732.

Summary of the Inventive Concept

An advanced lighting system that adjusts spectral and spatial illumination based on user circadian rhythms, ambient light levels, and activity levels, providing optimized illumination for human health and well-being.

Background and Problem Solved

The original patent relates to lighting fixtures, systems, and methods for providing spectrally and spatially adjustable high efficacy illumination that may be used to optimally effect or coordinate with human circadian rhythms. However, the original patent has limitations in terms of adjusting illumination based on user-specific factors, such as proximity, activity level, and ambient light levels. The new inventive concept addresses these limitations by incorporating sensors and algorithms to dynamically adjust the spectral and spatial illumination, ensuring a more personalized and effective illumination experience.

Detailed Description of the Inventive Concept

The enhanced system consists of a first illumination source with a first melanopic ratio and a second illumination source with a second melanopic ratio. The system is configured to generate a first light output with a first spectral power distribution and a second light output with a second spectral power distribution. The system adjusts the relative intensities of the first and second light outputs based on a user's circadian rhythm profile, the time of day, and the ambient light levels in the surrounding environment. Additionally, the system incorporates a sensor for detecting the user's proximity to the luminaire, allowing for real-time adjustments to the illumination. The system can also be integrated with wearable devices or other data sources to incorporate the user's activity level into the illumination adjustment algorithm.

Novelty and Inventive Step

The new inventive concept's novelty lies in its ability to adjust spectral and spatial illumination based on a user's specific circadian rhythm profile, ambient light levels, and activity level. The incorporation of sensors and algorithms to dynamically adjust the illumination provides a more personalized and effective illumination experience, which is not obvious from the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include using different types of sensors, such as wearable devices or environmental sensors, to detect user activity levels and ambient light levels. Additionally, the system could be integrated with other health and wellness technologies, such as sleep trackers or fitness monitors, to provide a more comprehensive illumination experience.

Potential Commercial Applications and Market

The enhanced spectrally and spatially modulated illumination system has significant commercial potential in the healthcare, wellness, and smart home industries. The system could be marketed as a premium lighting solution for homes, offices, and healthcare facilities, providing a unique value proposition for customers seeking to improve their overall health and well-being.

CPC Classifications

SectionClassGroup
A A61 A61M21/02
A A61 A61N5/0618
H H05 H05B45/20
A A61 A61M2021/0027
A A61 A61M2021/0044
A A61 A61M2205/3368
A A61 A61M2205/3375
A A61 A61M2205/587
A A61 A61N2005/0651
A A61 A61N2005/0663
F F21 F21S6/003
F F21 F21V1/00
F F21 F21Y2113/13
F F21 F21Y2115/10
H H05 H05B47/16
H H05 H05B47/19

Field of Art

Illumination systems and human-centric lighting technologies, focusing on LED-based circadian rhythm modulation systems, with expertise in spectral engineering, photobiological lighting, and adaptive illumination control

Person of Ordinary Skill (PHOSITA) Profile

A skilled practitioner with advanced knowledge in photonics, LED technology, human circadian rhythm research, optical engineering, and sensor-based adaptive lighting systems, typically holding a master's or doctoral degree in electrical engineering, optical sciences, or biomedical engineering

Obviousness Rationale

A person having ordinary skill in the art would recognize that the PTD's variations represent predictable extensions of the source patent's core teachings about spectrally modulated illumination. The additional elements of user proximity sensing, activity level integration, and dynamic spectral adjustment are logical refinements that would be apparent to a skilled practitioner seeking to optimize circadian-focused lighting systems. The PTD's innovations represent incremental improvements using known techniques in sensor integration and adaptive control algorithms.

Obvious Combinations & Variations

Source Patent Element
Lighting device with first and second illumination sources having different melanopic ratios
PTD Variation
Adding sensor-based proximity and activity level detection to dynamically adjust illumination
Obviousness Reasoning
Integrating user-specific sensors is a predictable design optimization in adaptive lighting systems, representing a known technique for personalizing illumination experiences
Source Patent Element
Spectrally modulated LED illumination with directional light outputs
PTD Variation
Incorporating ambient light level sensing to further refine spectral and intensity adjustments
Obviousness Reasoning
Compensating for environmental light conditions is a standard approach in advanced lighting control systems, representing an obvious enhancement to existing circadian rhythm lighting technologies
Source Patent Element
Lighting system with adjustable melanopic ratios for circadian rhythm coordination
PTD Variation
Integrating wearable device data to provide more comprehensive illumination profiling
Obviousness Reasoning
Cross-platform data integration is a predictable solution in health-focused technological systems, representing a logical extension of existing circadian lighting research
Source Patent Element
LED-based illumination with spectral power distribution control
PTD Variation
Implementing algorithmic adjustments based on time of day and user-specific circadian profiles
Obviousness Reasoning
Developing personalized lighting algorithms is an expected progression in human-centric lighting technologies, utilizing known computational techniques
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857732 and the disclosed technical variations, a person having ordinary skill in the art would find the claimed innovations obvious and lacking non-obvious inventive merit. The published technical disclosure demonstrates that the claimed system represents a predictable combination of known techniques in spectrally modulated illumination, sensor integration, and adaptive lighting control, thereby rendering subsequent similar claims obvious and unpatentable.

Original Patent Information

Patent NumberUS 11,857,732
TitleLuminaires, systems and methods for providing spectrally and spatially modulated illumination
Assignee(s)Biological Innovation and Optimization Systems, LLC