Optical Design for Tracking a Long Range Point Target

2021 ◽  
Author(s):  
Kamalesh Nehra ◽  
Kurisetty Venkata Ravi ◽  
Pachava Vengal Rao ◽  
Meesala Murali Mohan
Keyword(s):  
Long Range ◽  
Optical Design ◽  
Point Target

scholarly journals Long-Range, High-Resolution Camera Optical Design for Assisted and Autonomous Driving

Photonics ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 73 ◽  
Author(s):  
Furkan Sahin
Keyword(s):  
High Resolution ◽  
Long Range ◽  
Material Selection ◽  
Optical Design ◽  
Autonomous Driving ◽  
Operating Conditions ◽  
Optimized Design ◽  
Traffic Sign ◽  
The Road ◽  
Sign Recognition

High-quality cameras are fundamental sensors in assisted and autonomous driving. In particular, long-range forward-facing cameras can provide vital information about the road ahead, including detection and recognition of objects and early hazard warning. These automotive cameras should provide high-resolution images consistently under extreme operating conditions of the car for robust operation. This paper aims to introduce the design of fixed-focus, passively athermalized lenses for next-generation automotive cameras. After introducing an overview of essential and desirable features of automotive cameras and state-of-the-art, based on these features, two different camera designs that can achieve traffic sign recognition at 200 m distance are presented. These lenses are designed from scratch, with a unique design approach that starts with a graphical lens material selection tool and arrives at an optimized design with optical design software. Optical system analyses are performed to evaluate the lens designs. The lenses are shown to accomplish high contrast from − 40 °C to 100 °C and allow for a 4 × increase in resolution of automotive cameras.

Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

1970 ◽  
Vol 28 ◽  
pp. 360-361
Author(s):  
John W. Coleman
Keyword(s):  
Boundary Conditions ◽  
High Performance ◽  
Force Fields ◽  
Optical Design ◽  
Direct Conversion ◽  
Design Engineering ◽  
Design Data ◽  
Scalar Potentials ◽  
Geometric Elements ◽  
At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

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