Optical Module Curved Reflector Eliminates Wheel Asynchronism
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Solution Overview
Problem
Conventional 3D projector technologies face challenges in synchronizing the rotation of rotary filtering wheels with color wheels, leading to asynchronism and inefficient light coupling, which affects the quality of stereoscopic images.
Innovation Solution
An optical module with a curved reflecting component, filtering components, and a rolling component that independently pass through a focus to transform light wavebands, allowing for precise wavelength shifting to distinguish left-eye and right-eye images, and a light uniformizing component to ensure complete color information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional rotary filtering wheels and color wheels are used to generate and split light for stereoscopic images, then light coupling can be achieved, but asynchronism occurs between the left-eye and right-eye images due to difficulty in rotating both wheels completely synchronously
Solution Approach 1:
The patent extracts the filtering function from a separate rotary filtering wheel and integrates it into the color wheel itself. The color wheel is divided into a first color region with a first filtering component and a second color region with a second filtering component, eliminating the need for a separate filtering wheel and its synchronization mechanism.
Solution Approach 2:
The patent merges the filtering component and color wheel into a single integrated structure. The filtering components are disposed on the color wheel, combining two previously separate rotating elements into one, thereby eliminating synchronization issues between multiple wheels.
2Duration of action of stationary object
If solid-state light sources are used to emit light for projector apparatus, then the service life is extended and volume is reduced, but the brightness remains much lower than conventional high-pressure mercury lamps
Solution Approach 1:
The patent changes the optical parameters of the system by introducing a curved reflecting component that focuses light onto the rolling component. This concentrates the light from the solid-state source more effectively, improving illumination intensity without changing the light source itself.
Solution Approach 2:
The patent employs a curved reflecting component with a specific curved surface geometry to focus and redirect light from the solid-state source. This curved structure improves light collection efficiency and directs more light through the optical path, compensating for the lower intrinsic brightness of solid-state sources.
3Adaptability or versatility
If conventional optical paths are used with separate filtering wheels and color wheels, then light can be split for stereoscopic images, but the optical path structure becomes complex and cost increases
Solution Approach 1:
The patent removes the separate rotary filtering wheel from the optical path and integrates its filtering function directly into the color wheel structure, simplifying the overall optical path while maintaining the capability to split light for stereoscopic images.
Solution Approach 2:
The color wheel is designed to serve multiple functions: it acts as both the color separation element and the filtering component for stereoscopic image splitting. This multi-functional design eliminates the need for separate dedicated filtering wheels, reducing optical path complexity.
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 solution simplifies the optical path structure, reduces cost, and eliminates asynchronism between left-eye and right-eye images, enhancing the quality of stereoscopic images by providing complete color information.
Implementation Method 1
the curved reflecting component has a focus, a transmissive portion, a first reflecting portion and a second reflecting portion
Implementation Method 2
The first transforming portion and the second transforming portion independently pass through the focus in a first period and a second period respectively
Implementation Method 3
each of which comprises a wavelength transforming unit. The first transforming portion and the second transforming portion independently pass through the focus in a first period and a second period respectively. In the first period, the first waveband light transmits into the transmissive portion and is then transformed into a second waveband light via the first transforming portion
Implementation Method 4
The second waveband light is transformed into a first emergent light via the second reflecting portion and the first filtering component. In the second period, the first waveband light is transmitted into the transmissive portion and is then transformed into the second waveband light via the second transforming portion. The second waveband light is transformed into a second emergent light via the first reflecting portion and the second filtering component
Data Source
AI summary
An optical module includes a curved reflecting component, a first filtering component, a second filtering component and a rolling component. The curved reflecting component has a focus, a transmissive portion, a first reflecting portion and a second reflecting portion. The rolling component includes a first transforming portion and a second transforming portion. The first waveband light is transmitted into the transmissive portion and is then transformed into a second waveband light via the first transforming portion. The second waveband light is subsequently transformed into a first emergent light. The first waveband light is transmitted into the transmissive portion and is then transformed into the second waveband light via the second transforming portion. The second waveband light is subsequently transformed into a second emergent light.