Projector Luminance Control for Tiling Consistency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing projector control technologies face challenges in maintaining consistent luminance across projection areas during stack and tiling projections, especially when one projector fails, leading to noticeable luminance variations and user discomfort.
Innovation Solution
A method of controlling projectors that performs tiling projection in multiple areas, adjusts the luminance of the light source in a first projector group in multiple steps over a first period or in a single step over a shorter second period, and synchronizes the luminance adjustments with the second projector group to maintain consistent luminance across all areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If luminance adjustment processing is performed when one projector stops projecting, then luminance consistency between projection areas is improved, but user-perceptible luminance variation occurs causing feeling of strangeness
Solution Approach 1:
The system performs luminance adjustment processing in advance before the projector failure becomes apparent to the user. When a projector stops projecting, the control device has already prepared adjustment parameters to compensate for the luminance imbalance, applying the adjustment smoothly without causing noticeable variation to users.
Solution Approach 2:
The luminance adjustment is performed dynamically and adaptively based on real-time detection of projector status. The control device continuously monitors projection conditions and adjusts luminance parameters dynamically, transitioning smoothly between different projection configurations without causing abrupt luminance changes that users can perceive.
2Area of stationary object
If multiple projectors perform tiling projection, then coverage area is improved, but luminance balance between different projector groups becomes difficult to maintain
Solution Approach 1:
The control device receives projection status information from multiple projectors and uses this feedback to automatically adjust luminance parameters. By continuously monitoring the projection state of each projector group and comparing it against target luminance levels, the system maintains balanced luminance across the entire projection area even as projectors are added or removed.
Solution Approach 2:
The system changes luminance parameters of projectors dynamically based on their operational status. When projectors are added to expand coverage area, the control device adjusts their luminance parameters to match existing projectors. When projectors are removed, the remaining projectors have their luminance parameters adjusted to compensate, maintaining overall luminance balance across the projection surface.
Data Source
AI summary
A method of controlling a projector includes performing tiling projection in a first area and a second area by a first projector and a first projector group projecting image light beams in the first area and the second projector group projecting image light beams in the second area, performing first adjustment processing of applying a second adjustment amount smaller than a first adjustment amount to the first projector group and projecting the image light beams when projection by the first projector stops and first processing is selected, and performing second adjustment processing of applying a third adjustment amount no larger than a difference between the first adjustment amount and the second adjustment amount to the first projector group after the first adjustment processing, and projecting the image light beams.