Retractable Light Fixture with Actuated Door for Security
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Solution Overview
Problem
Existing light fixtures do not provide a mechanism to hide and expose devices like lamps securely and efficiently, especially for exterior building installations, lacking adjustable positioning and automated control for visibility and security purposes.
Innovation Solution
A light fixture with a retractable design featuring a housing with a door and actuator that moves between closed and open positions, allowing the lamp to be hidden or exposed, and integrated with a control system for user input and automatic operation, such as in response to an alarm system, with adjustable mounting to fit various building structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light fixture uses a fixed design with the lamp always exposed, then the lamp is always visible and functional, but security and aesthetic requirements cannot be met when the lamp should be hidden
Solution Approach 1:
The light fixture employs a movable door that can transition between closed and open positions, allowing the lamp to be hidden or exposed as needed. This dynamic structure resolves the contradiction by enabling the fixture to adapt its state based on security requirements, rather than being fixed in one configuration.
Solution Approach 2:
The fixture is divided into separate functional components: the housing, the movable door, and the lamp assembly. This segmentation allows the door to independently control visibility of the lamp while the housing provides structural support and mounting capabilities, reducing overall complexity through modular design.
2Adaptability or versatility
If the light fixture includes a movable door and actuator mechanism, then the lamp can be hidden or exposed on demand, but the device complexity increases
Solution Approach 1:
The door serves multiple functions: it acts as a cover for aesthetic purposes, provides security by hiding the lamp, and can be opened to expose the lamp for illumination or maintenance. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity.
Solution Approach 2:
The actuator serves as an intermediary mechanism that automatically controls the door's movement based on signals from the alarm system or user input. This intermediary approach simplifies the control architecture compared to direct manual operation, as the actuator handles the mechanical work of moving the door while the control system provides high-level decision-making.
3Extent of automation
If the light fixture is integrated with an alarm system for automated operation, then automated control is achieved, but the device complexity and cost increase
Solution Approach 1:
The light fixture integrates with the alarm system to receive automated control signals. When the alarm system detects an event or receives a command, it sends a signal to the actuator, which then automatically opens or closes the door. This feedback-based automation allows the fixture to respond to security conditions without requiring complex local decision-making circuitry.
4Adaptability or versatility
If the light fixture housing includes mounting slots for adjustable positioning, then adaptability to various building structures is improved, but the housing complexity increases
Solution Approach 1:
The housing incorporates movable mounting slots that allow the fixture to be positioned at different locations along the mounting surface. This dynamic positioning capability enables adaptation to various building structures and installation requirements without requiring multiple different housing designs, thereby limiting the increase in housing complexity.
Data Source
AI summary
A light fixture includes a housing adapted to secure the light fixture to a building. A lamp may be mounted to the housing. The light fixture further includes an actuator configured to move the device to move between a retracted position and an extended position so that the lamp can illuminate an area around the building.