Door Frame Header Light Fixture With Sensor-Based Entry Illumination
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Solution Overview
Problem
Existing door frames lack integrated lighting solutions that efficiently respond to environmental conditions and user interactions, providing inadequate illumination and security features.
Innovation Solution
A light fixture is integrated within the door frame header, equipped with sensors that switch between on and off states based on environmental conditions and user inputs, such as motion, light levels, and door position, with optional remote control and expandable functionalities like intercom systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a light fixture is integrated into the door frame header with sensor-based automatic control, then illumination and security are enhanced, but device complexity increases
Solution Approach 1:
The patent combines multiple functions (lighting, motion sensing, ambient light sensing, and automatic control) into a single integrated fixture mounted within the door frame header. This merging approach enhances security and illumination while consolidating components to manage complexity rather than increasing it through separate distributed systems.
Solution Approach 2:
The light fixture serves multiple functions: providing illumination, detecting motion, sensing ambient light levels, and automatically controlling its operation. This multi-functionality reduces the need for separate devices and improves overall system efficiency while enhancing security and convenience.
2Ease of operation
If the light fixture is equipped with multiple sensors for automatic control, then convenience is improved, but manufacturing complexity increases
Solution Approach 1:
The fixture is pre-configured with sensors and control logic during manufacturing to automatically respond to environmental conditions and user presence. This preliminary setup eliminates the need for complex user configuration and simplifies installation, as the device is ready to operate autonomously upon installation.
Solution Approach 2:
The light fixture autonomously monitors environmental conditions through its sensors and automatically adjusts its operation without user intervention. The motion sensor and ambient light sensor work together to automatically turn the light on or off, eliminating the need for manual switches or complex user programming.
3Illumination intensity
If the light fixture spans the entire width of the header, then illumination coverage is improved, but installation difficulty increases
Solution Approach 1:
The light fixture is designed as a modular unit that can be installed as a complete assembly within the door frame header. By integrating all components (light sources, sensors, housing, and mounting mechanisms) into a single standardized module, the system achieves full-width illumination coverage while simplifying installation to a single unit rather than multiple distributed components.
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
Enhances door frame illumination and security by automatically adjusting light levels based on environmental conditions and user interactions, offering energy efficiency and enhanced convenience.
Implementation Method 1
The sensor is a motion sensor configured to switch the light fixture from the off-state to the on-state in response to motion on the exterior side of the door
Implementation Method 2
The sensor may be a light level sensor configured to switch the light fixture from the off-state to the on-state in response to ambient light levels being below a threshold level and to switch the light fixture from the on-state to the off-state in response to ambient light levels being above a threshold level
Data Source
AI summary
A door assembly includes a door frame defining a doorway, a door, and a light fixture. The door frame includes a first jamb, a second jamb, and a header extending between the first jamb and the second jamb. The door has an interior face and an exterior face opposite the interior face. The door is pivotally secured to the door frame. The door has a closed position in which the door fills the doorway and an open position in which the passage through the doorway is allowed. The light fixture is disposed within the header on an exterior side of the door. The fixture is switchable between an on-state in which the light fixture illuminates the doorway and an off-state in response to input from a sensor. The sensor disposed within the light fixture and capable of sensing a change in environmental conditions.