Stereoscopic Display Lens Array for Compact Depth
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Solution Overview
Problem
Conventional stereoscopic display apparatuses are bulky and heavy, making them difficult to move due to their large depth and weight, which negatively impacts user experience.
Innovation Solution
A stereoscopic display apparatus comprising a grating lens, a 2D display apparatus, a spacing glass, and at least one convex lens array, where the lens array is positioned between the 2D display apparatus and the grating lens to converge light and shorten the focal distance, thereby reducing the depth and weight of the apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional stereoscopic display apparatus is designed to provide 3D effect through lens, then the stereoscopic effect is achieved, but the depth and weight of the apparatus become large making it heavy and difficult to move
Solution Approach 1:
The patent divides the optical system into multiple components: a 2D display apparatus, a lens array with multiple lens units, and a grating lens with multiple grating units. Each component performs a specific function - the lens array converges light from different positions of the display to different positions of the grating lens, while the grating lens creates the stereoscopic effect. This segmentation allows for a more compact overall design compared to conventional single-lens systems.
Solution Approach 2:
The patent utilizes the spatial dimension by arranging lens units and grating units in specific positions. The lens array is positioned between the display apparatus and the grating lens, with lens units corresponding to different horizontal positions on the display. This spatial arrangement in multiple dimensions enables light convergence and stereoscopic image formation while reducing the overall depth of the apparatus.
2Length of moving object
If the depth of the spacing glass is reduced to make the apparatus more compact, then the portability is improved, but the focal distance requirement cannot be met
Solution Approach 1:
The patent introduces a lens array as an intermediary component between the 2D display apparatus and the grating lens. The lens array acts as a mediator that converges light from different positions of the display to corresponding positions of the grating lens. This intermediary enables the system to achieve the required optical function with a reduced depth of spacing glass, as the lens array performs the light convergence function that would otherwise require a longer focal distance.
Solution Approach 2:
The patent changes the optical parameters of the system by using a lens array with specific focal lengths and positioning it at optimized distances from the display apparatus and grating lens. By adjusting parameters such as the focal length of lens units, the distance between lens array and display, and the distance between lens array and grating lens, the system achieves the required optical performance with a compact depth of spacing glass.
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
The solution effectively reduces the depth and weight of the stereoscopic display apparatus, enhancing user experience by making it easier to move and handle, while maintaining image quality.
Implementation Method 1
at least one lens array disposed neighbor with the spacing glass and between the 2D display apparatus and the grating lens, for converging light emitted from the 2D display apparatus so that the focal distance of the grating lens in the stereoscopic display apparatus is shortened
Implementation Method 2
light is projected to different locations in space through lens by the stereoscopic display apparatus to form different viewpoints in the horizontal direction, and human eyes feels a 3D effect from binocular parallax effect occurred at the time when left and right eyes are at different viewpoints
Data Source
AI summary
The present invention provides a stereoscopic display apparatus, which comprises: a grating lens comprising a plurality of grating lens units; a 2D display apparatus disposed in the range of a focal distance of the grating lens; a spacing glass disposed between the 2D display apparatus and the grating lens; and at least one lens array disposed neighbor with the spacing glass and between the 2D display apparatus and the grating lens, for converging light emitted from the 2D display apparatus so that the focal distance of the grating lens in the stereoscopic display apparatus is shortened, and therefore a depth of the spacing glass is reduced, wherein the lens array comprises a plurality of lens units being one-by-one correspondence to the grating lens units. By the solution provided above, the present invention reduces the depth and weight of the stereoscopic display apparatus.