Aspheric optical lens surface is getting incorporated more into optical systems for improving different aspects of the system such as resolution, aberration corrections, weight, size etc. However, in comparison to a spherical lens, an aspheric lens poses new challenges in the alignment of the optic as the aspheric geometry consist of a single axis of rotational symmetry in comparison with a sphere which is radially symmetric at any point on the surface. This paper is intended to describe different methods which can be used to specify the centration of an aspheric lens component and how these methods should be chosen according to the intended assembly process.
Aspheric optical lens surface is getting incorporated more into optical systems for improving different aspects of the system such as resolution, aberration corrections, weight, size etc. However, in comparison to a spherical lens, an aspheric lens poses new challenges in the alignment of the optic as the aspheric geometry consist of a single axis of rotational symmetry in comparison with a sphere which is radially symmetric at any point on the surface. This paper is intended to describe different methods which can be used to specify the centration of an aspheric lens component and how these methods should be chosen according to the intended assembly process.
In laser applications, unwanted transmission can require a beam dump positioned behind every mirror to prevent unwanted light propagation. Novel new mirrors (patent pending) based on an engineered substrate are able to reduce the power leaking through a component by several orders of magnitude while maintaining <98% of the reflective properties. Rated as both mirrors and neutral density filters, these parts greatly reduce the need for beam dumps behind components, minimizing the size of optical systems and improving laser safety. This paper will discuss the performance of these engineered mirrors and compare their reflection and transmission with traditional Fused Silica mirrors.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.