Projector Linear Optical Layout Reducing Size
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Solution Overview
Problem
Current projectors have a large size due to the perpendicular arrangement of the projection light source and projection lens, resulting in wasted space and inconvenience for carrying, as they occupy a significant margin space.
Innovation Solution
The projector is designed with the projection light source, polarizing beam splitting prism, and projection lens aligned in a first direction, and the polarized light converting component and LCOS imaging chip aligned in a second direction perpendicular to the first, with the polarizing beam splitting prism positioned between the light source and lens, and converting component and imaging chip, respectively, to efficiently process S-polarized light and reduce spatial occupancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the projection light source and projection lens are arranged perpendicularly, then the optical path can be folded to fit compact components, but the overall projector size increases due to wasted margin space between components
Solution Approach 1:
The patent transitions from a traditional perpendicular arrangement (2D plane optimization) to a linear arrangement where components are disposed in the same direction (1D linear optimization). This dimensional change eliminates the need for folded optical paths and margin spaces, achieving a more compact projector form factor while simplifying the overall structure.
2Area of stationary object
If the projection light source and projection lens are arranged perpendicularly, then optical path folding is achieved, but space is wasted due to margin space between components
Solution Approach 1:
The patent merges the optical paths and component arrangements into a single linear direction, eliminating the separate perpendicular arrangements that created margin spaces. By combining the light source, polarizing beam splitting prism, and projection lens into a linear sequence, the design achieves better space utilization and improves portability.
3Productivity
If the polarizing beam splitting prism is positioned to reflect S-polarized light to the polarized light converting component, then efficient light path management is achieved, but the component layout becomes more complex
Solution Approach 1:
The patent repositions all components including the polarizing beam splitting prism and polarized light converting component into a linear arrangement along the first direction. This dimensional change maintains the functional light processing efficiency while simplifying the component layout from a complex perpendicular arrangement to a straightforward linear sequence.
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
This configuration allows for a compact and linear layout, reducing the projector's size and minimizing space waste, making it more portable while maintaining effective image processing and projection quality.
Implementation Method 1
The projection light source is configured to emit an S-polarized light. The polarizing beam splitting prism is configured to reflect the S-polarized light emitted from the projection light source to the polarized light converting component.
Implementation Method 2
The polarizing beam splitting prism is configured to reflect the S-polarized light emitted from the projection light source to the polarized light converting component. The polarizing beam splitting prism is further configured to transmit the P-polarized light emitted from the polarized light converting component to the LCOS imaging chip.
Implementation Method 3
The polarized light converting component is configured to convert the S-polarized light reflected from the polarizing beam splitting prism to a P-polarized light, and emit the converted P-polarized light to the polarizing beam splitting prism.
Implementation Method 4
The LCOS imaging chip is configured to modulate the P-polarized light transmitted from the polarizing beam splitting prism to an S-polarized light, and emit the modulated S-polarized light to the polarizing beam splitting prism.
Data Source
AI summary
Embodiments of the present disclosure provide a projector and a projection system. In the projector, a projection light source, a polarizing beam splitting prism, and a projection lens are disposed in a first direction, and the polarizing beam splitting prism is disposed between the projection light source and the projection lens; a polarized light converting component, the polarizing beam splitting prism, and an LCOS imaging chip are disposed in a second direction, and the polarizing beam splitting prism is disposed between the polarized light converting component and the LCOS imaging chip, wherein the second direction is perpendicular to the first direction.