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Wide-converter lens design for a pico projector
Applied Optics
|January 22, 2015
Summary
A new wide-converter lens design for digital micromirror devices significantly enlarges projected images. This lens increases image size by 42.4% or reduces projection distance by 29.78% for pico projectors.
Area of Science:
- Optics
- Digital Imaging
Background:
- Pico projectors (PPs) face limitations in image size and projection distance.
- Digital micromirror devices (DMDs) are key components in modern projection technology.
Purpose of the Study:
- To propose a novel wide-converter lens design for DMD-based pico projectors.
- To enhance the image enlargement capability and projection distance efficiency of pico projectors.
Main Methods:
- Conceptual design of a 0.702× wide-converter lens.
- Integration of the wide-converter lens in front of a standard pico projector lens.
- Comparative analysis of projected image size and projection distance with and without the converter lens.
Main Results:
- The 0.702× wide-converter lens increases the original projected image size by 42.4% at the same projection distance.
- Achieves a 29.78% saving in projection distance for an equivalent image size.
- Demonstrates enhanced performance for 0.3-inch digital micromirror devices.
Conclusions:
- The proposed wide-converter lens design offers a significant improvement in pico projector performance.
- This optical solution effectively enlarges projected images and optimizes projection distance.
- The design is suitable for 0.3-inch digital micromirror device applications.
