Projector Lens Adjustment Mechanism for Automatic Input Terminal Selection
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Solution Overview
Problem
Existing projectors require users to manually memorize and select lens adjustment values for different input terminals, making it difficult to perform adjustments efficiently when switching between screens or powering on/off.
Innovation Solution
A projector with an adjustment mechanism that automatically acquires and applies lens adjustment values linked to specific input terminals, simplifying user operations by storing and retrieving focus, zoom, and lens shift values based on the selected terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lens adjustment values are stored in memory for multiple input terminals, then it is possible to correct deviation of display positions when switching screens, but users cannot easily ascertain which lens adjustment values are stored and must manually select them
Solution Approach 1:
The projector automatically retrieves and applies the appropriate lens adjustment values based on the selected input terminal without requiring user intervention. The control unit detects which input terminal is selected and automatically reads the corresponding lens adjustment values from storage, making the system self-serving and eliminating manual selection burden on users.
Solution Approach 2:
The system establishes a feedback loop where the control unit continuously monitors the selected input terminal and automatically adjusts lens parameters based on the stored values associated with that terminal. This closed-loop approach ensures the correct lens adjustment is applied without user input.
2Adaptability or versatility
If multiple sets of lens adjustment parameters are stored for different input terminals, then screen switching can be corrected, but users must memorize lens adjustment values to select the correct set
Solution Approach 1:
The projector automatically manages the association between input terminals and lens adjustment values. When a user selects an input terminal, the control unit automatically retrieves the corresponding lens adjustment values from storage without requiring the user to remember or manually select the correct parameter set.
Solution Approach 2:
The control unit acts as an intermediary that manages the relationship between input terminals and lens adjustment values. It automatically matches the selected terminal with the appropriate stored parameters, eliminating the need for users to directly manage or remember the parameter associations.
3Measurement precision
If manual selection of lens adjustment values is required for each input terminal, then precise control is possible, but operation time increases when switching between terminals
Solution Approach 1:
Lens adjustment values for multiple input terminals are pre-stored in memory during system setup or calibration. When the projector switches between input terminals, the control unit simply retrieves the pre-stored values associated with the current terminal, eliminating the need for real-time manual adjustment and significantly reducing operation time.
Solution Approach 2:
The system automatically performs the lens adjustment by retrieving pre-stored values based on the selected input terminal, eliminating manual intervention and reducing adjustment time while maintaining precision through the use of pre-calibrated parameters.
Data Source
AI summary
A projector includes a lens adjustment mechanism that performs a predetermined adjustment operation for a projection lens, an input selection unit that selects one input terminal from plurality of input terminals provided in the input terminal unit according to a predetermined operation, an adjustment value storage unit that stores lens adjustment values by linking to the type of the input terminal, an adjustment value acquisition unit that acquires, from the adjustment value storage unit, the lens adjustment values corresponding to the type of the selected input terminal when the predetermined operation is received, and an adjustment control unit that causes the lens adjustment mechanism to perform a lens adjustment operation based on the acquired lens adjustment values.