Design and characterization of an aspherical zoom lens for projection TV

Luh-Hwa Chen; Wein-Chyi Horng; Ryh-Huang Chen; Chie-Ching Lin

doi:10.1117/12.205903

7 April 1995 Design and characterization of an aspherical zoom lens for projection TV

Luh-Hwa Chen, Wein-Chyi Horng, Ryh-Huang Chen, Chie-Ching Lin

Proceedings Volume 2407, Projection Displays; (1995) https://doi.org/10.1117/12.205903
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

By using aspherical lens design is one of the keys to reduce the size and weight for a compact lens applied in Projection TV. The other approach is to use plastic lenses instead of glass lenses to reduce weight and cost. In this work, we describe the optical design of projection zoom objective by using aspherical surface and plastic-glass hybrid lens sets. Our aspherical design can significantly reduce dimensional scale 30% off comparing with spherical design. We also calculate the compensation of focus shift owing to the changes of temperature and humidity for plastic lenses. Results of this work and other questions raised by this attempt will be discussed in this paper.

Citation Download Citation

Luh-Hwa Chen, Wein-Chyi Horng, Ryh-Huang Chen, and Chie-Ching Lin "Design and characterization of an aspherical zoom lens for projection TV", Proc. SPIE 2407, Projection Displays, (7 April 1995); https://doi.org/10.1117/12.205903

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