Donglin Pu

Title: Donglin Pu: Inventor of an Enhanced Projection Curtain.

Introduction

Donglin Pu is an inventor associated with Nantong, China. His work includes a projection curtain design intended to improve brightness and viewing angle. His listed portfolio includes 1 patent.

Latest Patents

Pu’s patent, “Projector Curtain,” describes a projection curtain with a reflective layer and at least one additional layer: a colored layer, a diffusion layer, or a Fresnel lens layer. The Fresnel lens may be spherical or aspherical and features circular bands of annular protrusions. Their cross-sections can be triangular, multi-step, or free-form, with changing widths and shapes designed to control how the lens gathers light. Scattered microstructures on the protrusions’ surfaces further contribute to the curtain’s optical properties. The invention is described as providing higher brightness and a wider viewing angle than existing projection curtains.

Career Highlights

Pu is associated with Ivtech Jiangsu Co., Ltd. and Ivtouch Co., Ltd. His projector-curtain patent reflects an effort to improve the viewing experience of projection systems through optical-layer design.

Collaborations

Xiaohong Zhou and Ming Zhu are identified as Pu’s coworkers. The available information does not specify their roles in the patent or their particular contributions.

Conclusion

Donglin Pu’s projection-curtain invention combines reflective and optical layers with carefully shaped Fresnel structures to pursue greater brightness and a wider viewing angle.