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terms of use


By Visiting, you agree to abide by the terms and conditions described below.

General information


This site is published by CLAVIS S.A.R.L., joint stock company with a capital of 20 000 euros, registered to the RCS of Marseille with the number 438 212 607, whose head quarter is : 29 Boulevard Marius Thomas 13007 Marseille - France
email :
Publication Director: Mr. Gilles Passedat


SAS OVH - - 2 rue Kellermann - BP 80157 - 59100 Roubaix - France - Fax: +33
In accordance with the data protection act of January 6, 1978, you have the right to access, modify, rectify and delete data concerning you by making a request via email to


CLAVIS S.A.R.L. provides online technical and scientific service on the web site This service include computation pages, tutorials and glossary in the field of photonics. Some of the computation pages are usable only for authorized people having acquired rights of use by a subscription.

Terms of Use


All material (presentation, pictures, logos, identifying marks, trade names, trademarks, text, computation tools, programs, subroutines, tree diagrams, etc...) part of this site or appearing on this site are the property of CLAVIS S.A.R.L.. These elements are protected by the provisions of the Code of Intellectual Property. Any reproduction thereof, in whole or in part, or imitation, without our express prior written consent is prohibited. Therefore, it is formally forbidden to collect and use information available on the site for commercial purposes.


Although CLAVIS S.A.R.L. make every effort to provide an effective service and update it regularly, it can not guarantee its error free neither perfect timeliness or completeness and can not therefore be sought for damages as such. CLAVIS S.A.R.L. can not be held liable for any damages whatsoever resulting from a connection to this site or use the information and service contained therein. CLAVIS S.A.R.L. reserves the right to modify, suspend or discontinue the distribution of all or part of this site within existing commitments with the users.


The visitors of this site agree not to introduce - voluntarily or involuntarily - viruses or files which may cause undesired operation. Otherwise, their liability is likely to be initiated by CLAVIS S.A.R.L..


you expressly understand and agree that :

Your use of the service is at your sole risk. CLAVIS S.A.R.L. expressly disclaims all warranties, representations and conditions of any kind, whether express or implied, including, but not limited to the implied warranties, representations and conditions of merchantability, fitness for a particular purpose and non-infringement.

CLAVIS S.A.R.L. make no warranty that the service will meet your requirements, the service will be uninterrupted, timely, secure, or error free, the results that may be obtained from the use of the service will be accurate or reliable, the quality of any products, services, information, or other material purchased or obtained by you through the service will meet your expectations, and any errors in the software will be corrected.

No advice or information, whether oral or written, obtained by you from CLAVIS S.A.R.L. or through or from the service shall create any warranty not expressely stated in the terms.


The Terms and the relationship between the users and CLAVIS S.A.R.L. shall be governed by the french laws. You and CLAVIS S.A.R.L. agree to submit to the personal and exclusive jurisdiction of the courts located in Marseille, France.

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