Buy article online - an online subscription or single-article purchase is required to access this article.
Download citation
Download citation
link to html
An attempt is made in this paper to indicate the impact that one small part of Sir Lawrence Bragg's gross contributions have had upon crystallography during his lifetime up to the age of eighty. The small part referred to is the growing field of optical computation. Since this paper is partly for the enlightenment of the reader as well as a salute to history, descriptions of five basic optical operations are given: I, addition; II, multiplication; III, reciprocation; IV, convolution and V, diffraction. The role of Bragg and his co-workers is woven into each description. Finally as an extrapolation, a further process is described: VI, inverse imaging.

Subscribe to Acta Crystallographica Section A: Foundations and Advances

The full text of this article is available to subscribers to the journal.

If you have already registered and are using a computer listed in your registration details, please email support@iucr.org for assistance.

Buy online

You may purchase this article in PDF and/or HTML formats. For purchasers in the European Community who do not have a VAT number, VAT will be added at the local rate. Payments to the IUCr are handled by WorldPay, who will accept payment by credit card in several currencies. To purchase the article, please complete the form below (fields marked * are required), and then click on `Continue'.
E-mail address* 
Repeat e-mail address* 
(for error checking) 

Format*   PDF (US $40)
In order for VAT to be shown for your country javascript needs to be enabled.

VAT number 
(non-UK EC countries only) 
Country* 
 

Terms and conditions of use
Contact us

Follow Acta Cryst. A
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds