David I Cullumber

Title: The Innovations of David I Cullumber

Introduction

David I Cullumber is an accomplished inventor based in Chester, CA (US). He has made significant contributions to the field of optical technology, particularly with his innovative designs that enhance the functionality of optical heads. His work is characterized by a focus on compact structures and efficient designs.

Latest Patents

David I Cullumber holds a patent for a "Tracking and focus actuator for a holographic optical head." This invention features an actuator for an objective lens in an optical head, providing a compact structure that maintains the laser beam's position relative to the objective lens during tracking. The design integrates the optical beam path within the same space occupied by the tracking and focusing motor, allowing for a low-profile optical head. A mirror reflects the laser beam at an angle to the objective lens, and the coupling mechanism enables movement of the objective lens relative to the mirror along the laser beam's path. This innovative approach eliminates beam clipping and distortion, while the stationary laser and detector reduce mass and power requirements. The simple structure also removes the need for a fiber optic cable.

Career Highlights

David I Cullumber is associated with Pencom International Corporation, where he applies his expertise in optical technologies. His work has been instrumental in advancing the capabilities of optical systems, making them more efficient and effective.

Collaborations

One of his notable collaborators is Wai-Hon Lee, with whom he has worked on various projects to enhance optical technology.

Conclusion

David I Cullumber's contributions to the field of optical technology through his innovative patents and collaborations highlight his role as a significant inventor. His work continues to influence advancements in optical systems, showcasing the importance of innovation in this field.