Renlong Yu

Title: Renlong Yu and His Camera Optical Lens Patent.

Introduction

Renlong Yu is an inventor associated with Changzhou, China, and Aac Optics (Changzhou) Co., Ltd. His patent work includes an optical design for a camera lens intended to operate across a wide range of temperatures.

Latest Patents

The provided information identifies one patent for Renlong Yu: “Camera Optical Lens.” The design arranges five lenses from the object side to the image side: a first lens with positive refractive power, a second lens with positive refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power, and a fifth lens with positive refractive power.

The first lens is made of glass, and at least one of the remaining four lenses is also made of glass. The lens is specified to operate from −40°C to 105°C. Its stated design conditions include a total optical length-to-focal-length ratio of 1.50 to 4.00, a first-lens refractive index of 1.70 to 2.20, and a ratio of the second lens’s object-side and image-side surface curvature radii of no greater than −2.00. The patent describes an optical configuration designed to meet these dimensional, material, and temperature requirements.

Career Highlights

The available information connects Yu’s patent activity with Aac Optics (Changzhou) Co., Ltd. His identified contribution is the camera optical lens invention, which combines multiple glass elements and specified optical parameters with a broad operating-temperature range. The provided data lists 1 patent.

Collaborations

Yu is associated with Aac Optics (Changzhou) Co., Ltd., the company named in the provided information. No additional collaborators or partnerships are specified.

Conclusion

Renlong Yu’s identified patent presents a five-element camera optical lens designed around defined refractive properties, glass materials, and operation from −40°C to 105°C.