Door Lock Illumination Device with Key-Activated Lighting
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Solution Overview
Problem
The lack of light around door locks makes it difficult for individuals to unlock and open doors safely, especially in dark environments, increasing the risk of accidents or encounters with potential attackers.
Innovation Solution
A door lock illumination device with a main body, key hole, illumination unit, and sensor that illuminates the key hole and surrounding area upon key insertion, distinguishing between correct and incorrect keys through flashing or static lighting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If an illumination device is added to the door lock, then visibility and safety are improved, but device complexity increases
Solution Approach 1:
The illumination unit is integrated within the main body of the door lock device, merging the lighting function with the existing lock structure. This combination provides illumination without requiring a completely separate device, thereby improving visibility while minimizing the increase in overall device complexity.
Solution Approach 2:
The illumination unit is designed to activate automatically when the key hole receives contact by the key, without requiring external control or additional components. This self-activating mechanism simplifies the control system while ensuring the illumination function is available when needed.
2Ease of operation
If the illumination unit activates on key contact, then ease of operation is improved, but energy consumption increases
Solution Approach 1:
The illumination unit activates in advance when the key makes contact with the key hole, providing light before the user completes the unlocking action. This preliminary illumination helps users see and locate their keys or perform unlocking actions more easily in dark environments, improving ease of operation while activating the light only when necessary.
Solution Approach 2:
The illumination operates in periodic intervals - activating only when the key is inserted and remaining dormant otherwise. This intermittent operation pattern reduces overall energy consumption compared to continuous illumination, while still providing adequate lighting during the brief periods when key interaction occurs.
3Reliability
If the sensor distinguishes between correct and incorrect keys, then reliability is improved, but device complexity increases
Solution Approach 1:
The sensor provides feedback by detecting the difference between correct and incorrect keys, and the illumination unit responds differently based on this feedback - flashing for incorrect keys and static for correct keys. This feedback mechanism enables reliable key verification using the existing illumination components without requiring additional complex verification hardware.
Solution Approach 2:
The illumination unit uses different lighting patterns (flashing vs. static) to indicate different key types. This visual differentiation allows users to immediately understand whether the inserted key is correct or incorrect, providing reliable verification through simple optical signals rather than complex electronic displays or additional 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 visibility and safety by providing light for key insertion, assisting users in unlocking doors and potentially deterring attackers by illuminating the door lock area.
Implementation Method 1
an illumination unit disposed within at least a portion of the main body to illuminate in response to the key hole receiving the key
Data Source
AI summary
A door lock illumination device connected to a door, the door lock illumination device including a main body, a key hole disposed on at least a portion of the main body to receive a key therein, and an illumination unit disposed within at least a portion of the main body to illuminate in response to the key hole receiving the key.