Slant Lens Interlacing for Thinner 3D Lenticular Sheets
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Solution Overview
Problem
Conventional lenticular printing methods face limitations in producing thinner lens sheets with higher resolution, as the number of interlaced images that can be printed is restricted by the lens size and printer resolution, making it difficult to achieve effective 3D imagery with thinner lenticular materials.
Innovation Solution
The method involves non-orthogonal interlacing, where pixels from multiple frames are arranged in a matrix pattern transverse to the longitudinal axis of slanted lenticules, allowing for a significantly larger number of pixels to be printed under each lens, enabling thinner lens sheets to display 3D imagery without the constraints of traditional interlacing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional orthogonal interlacing is used with traditional lenticular printing, then the printing process is simple and straightforward, but the lens sheet thickness cannot be reduced and the resolution is limited
Solution Approach 1:
The patent transitions from traditional orthogonal interlacing to non-orthogonal interlacing at specific angles (e.g., 30 degrees). This angular dimensionality change allows pixels to be arranged in a diagonal pattern under the lenticules, effectively increasing the information capacity by utilizing the angular space that was previously unused in conventional orthogonal arrangements.
Solution Approach 2:
The patent divides the lenticular array into multiple zones or regions, each with its own interlacing pattern. This segmentation allows different portions of the lens sheet to use optimized interlacing strategies, enabling thinner lens sheets while maintaining overall image quality and resolving the contradiction between thickness reduction and information capacity.
2Quantity of substance
If the lens sheet is made thinner to reduce material usage and cost, then material cost decreases and flexibility improves, but the number of interlaced images that can be printed is restricted
Solution Approach 1:
By implementing non-orthogonal interlacing at angles such as 30 degrees, the patent increases the effective information capacity under each lenticule. This angular arrangement allows more pixels to be packed into the same physical space, compensating for the reduced lens thickness and preventing information loss despite using less material.
Solution Approach 2:
The patent changes the interlacing angle parameter from the conventional 0 degrees (orthogonal) to non-orthogonal angles (e.g., 30 degrees). This parameter change fundamentally alters how information is distributed under the lenticules, enabling thinner lens sheets to maintain or even increase their information capacity by optimizing the angular distribution of pixels.
3Measurement precision
If more pixels are printed under each lenticule to increase information capacity, then interlaced image detail improves, but traditional interlacing methods cannot accommodate this without increasing lens thickness
Solution Approach 1:
The patent uses non-orthogonal interlacing at angles like 30 degrees to arrange pixels in a diagonal pattern under each lenticule. This angular arrangement increases the effective pixel density without requiring additional lens thickness, as the diagonal positioning allows more pixels to fit within the same vertical space compared to orthogonal arrangements.
Solution Approach 2:
The patent employs dynamic interlacing patterns that can be adjusted based on the specific lenticule configuration and viewing conditions. This dynamic approach allows the system to optimize pixel distribution for maximum information capacity within the constraints of the lens sheet thickness, enabling high-resolution imagery without increasing physical dimensions.
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 approach allows for up to two-thirds reduction in lens sheet thickness while maintaining the same imagery quality, doubling or quadrupling the amount of information that can be printed under each lenticule, thus overcoming the limitations of traditional interlacing techniques.
Implementation Method 1
lenticular lens material is used in the packaging industry for creating promotional material with appealing graphics and typically involves producing a sheet of lenticular lens material and adhesively attaching the lenticular lens material to a separately produced object for display
Data Source
AI summary
An optical product that includes a transparent lens sheet, which has a first side with a plurality of side-by-side sets of linearly arranged lenses. Each of the sets of lenses is at a slant angle in the range of 10 to 46 degrees from a vertical or a horizontal axis of the lens sheet. The product includes an image layer that includes pixels from a number of digital images. The pixels are arranged in a pattern of pixel locations providing non-orthogonal interlacing of the digital images relative to each of the sets of the linearly arranged lenses. The pattern of pixel locations aligns a number of the pixels from each of the digital images to be parallel to a line extending through a center of the linearly arranged lenses in each set. Each of the linearly arranged lenses may have a round base, a hexagonal base, or a square base.