Projector Light Source Usable Time Calculation and Notification
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Solution Overview
Problem
Projectors face the challenge of maintaining desired brightness as the light source deteriorates over time, making it difficult to achieve the required display brightness.
Innovation Solution
A projector system that includes a light source, an information acquisition section to obtain designated light intensity, an arithmetic section to calculate the usable time of the light source, and a notification section to inform the user of this time, along with a drive section to control the light intensity and a calibration section to adjust the current based on detected light intensity, ensuring the light source operates within optimal parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the light source is used continuously, then the projector operates without interruption, but the light source deteriorates and brightness decreases
Solution Approach 1:
The system performs preliminary detection of light source brightness using an optical sensor and calculates the remaining useful life before the light source completely deteriorates. This allows the system to notify users in advance and plan for replacement before the projector can no longer maintain desired brightness levels.
Solution Approach 2:
The system continuously monitors the light source brightness through optical sensors and uses this feedback to calculate and update the remaining useful life. The monitored brightness data is used to determine when the light source deteriorates and to provide accurate notifications to users about the light source's operational status.
2Loss of information
If the light source deteriorates is detected in advance, then user notification is possible, but the system complexity increases
Solution Approach 1:
The system uses its own optical sensor to automatically detect light source brightness and calculate remaining useful life without requiring external intervention. The projector self-monitors its light source status and provides notifications autonomously, eliminating the need for separate monitoring equipment or manual inspection procedures.
Solution Approach 2:
The optical sensor serves multiple functions: it detects light source brightness for display quality monitoring, provides data for calculating remaining useful life, and enables the notification system to inform users. This multi-functional approach reduces the need for separate dedicated components for each function.
Data Source
AI summary
A projector includes a light source, an information acquisition section adapted to obtain information of designating light intensity of light emitted by the light source, an arithmetic section adapted to calculate time for which the light source can be used with the light intensity represented by the information obtained by the information acquisition section, and a notification section adapted to give notification of the time calculated by the arithmetic section.