Annette C Grot

Title: Annette C Grot: Innovator in Holographic Technology

Introduction

Annette C Grot is a prominent inventor based in Cupertino, CA, known for her contributions to holographic technology. With a total of 2 patents, she has made significant strides in the field, particularly in the development of high-security machine-readable holographic cards.

Latest Patents

One of her latest patents is for a high-security machine-readable holographic card. This innovative card generates a hologram image in response to an illumination light beam. The card features a substrate made of a first plastic material with a specific refractive index and a contoured surface that includes localized topological features, functioning as a diffractive optical element. This element is designed to produce a hologram image when illuminated. Additionally, the card is protected by a layer of a second plastic material, which has a refractive index differing from the first by less than 0.2. This protective layer is chemically bonded to the substrate and directly contacts the topological features.

Another notable patent is for an illumination system that creates a desired irradiance profile. This system includes a light source and converging imaging optics, along with a diffractive array generator. The generator features a two-dimensional periodic array of multi-level topological features, enhancing the system's functionality.

Career Highlights

Annette C Grot has built a successful career at Hewlett-Packard Company, where she has been instrumental in advancing holographic technologies. Her work has not only contributed to the company's innovation portfolio but has also set new standards in security and imaging.

Collaborations

Throughout her career, Annette has collaborated with notable colleagues, including John S Hoch and Robert C Taber. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their respective fields.

Conclusion

Annette C Grot's innovative work in holographic technology exemplifies her commitment to advancing security and imaging solutions. Her patents reflect her expertise and dedication to innovation, making her a significant figure in the field.