Thomas F Denove

Title: Thomas F. Denove: Innovator in Light Meter Technology

Introduction

Thomas F. Denove is a notable inventor based in Agoura Hills, California. He is recognized for his innovative contributions to the field of light measurement technology. His work has significantly impacted cinematography and photography, providing professionals with advanced tools for accurate light readings.

Latest Patents

Denove holds a patent for the "LCD bargraph motion picture light meter." This handheld incident light meter features a custom LCD panel that offers both a digital readout and a bar graph array. The design simulates an analog meter without using moving mechanical parts. It operates in various modes, including bar, floating zone, and dedicated. The device achieves unusual accuracy and stability over a wide dynamic range, from 0.1 to over 50,000 footcandles. This is made possible through a novel analog photo-amplifier that includes a linear autoranging preamplifier, an averaging integrator, and a temperature-compensated log converter. The system drives an IC analog-to-digital converter connected to a microprocessor, which is programmed to operate in different modes. The LCD displays light readings based on user commands entered via ergonomic controls. Additionally, the battery condition is continuously displayed, and the digital readout can be backlit for low ambient light levels.

Denove's invention includes two versions of the light meter. The first version, the "Cinemeter II," is tailored for cinematography and accepts user-entered data such as film speed, shutter speed, shutter angle, and lens filters. It automatically calculates and displays movie camera f-stop settings based on the light reading. The second version, the "Lighting Director," is designed for evaluating illuminance in various environments, including movie-making, stage lighting, general photography, and architectural illumination. It can display light readings as +/- deviation from a preset target value, with an optional audible indication.

Career Highlights

Denove's career is marked by his dedication to advancing light measurement technology. His innovative approach has led to the development of tools that enhance the accuracy and efficiency of light readings in various professional settings.

Collaborations

Denove has collaborated with William L. Blowers, contributing to the development and refinement of his inventions. Their partnership has played a significant role in the success of the products developed under GDB Enterprises, Inc.

Conclusion