Reflections on light | Christophe Mathieu

These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly.

Cookie	Duration	Description
aka_debug
cookielawinfo-checkbox-functional		The cookie is set by the GDPR Cookie Consent plugin to record the user consent for the cookies in the category "Functional".
mailchimp_landing_site	1 month	The cookie is set by MailChimp to record which page the user first visited.
vuid	2 years
_pin_unauth	1 year

These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.

Cookie	Duration	Description
cookielawinfo-checkbox-necessary	1 year	Set by the GDPR Cookie Consent plugin, this cookie is used to record the user consent for the cookies in the "Necessary" category .
CookieLawInfoConsent	1 year	Records the default button state of the corresponding category & the status of CCPA. It works only in coordination with the primary cookie.
cookies.js		No description available.
csrftoken	11 months	This cookie is associated with Django web development platform for python. Used to help protect the website against Cross-Site Request Forgery attacks
JSESSIONID	session	The JSESSIONID cookie is used by New Relic to store a session identifier so that New Relic can monitor session counts for an application.
viewed_cookie_policy	1 hour	The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
_GRECAPTCHA		This cookie is set by the Google recaptcha service to identify bots to protect the website against malicious spam attacks.
__cfduid	1 month	The cookie is set by CloudFare. The cookie is used to identify individual clients behind a shared IP address d apply security settings on a per-client basis. It doesnot correspond to any user ID in the web application and does not store any personally identifiable information.

These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.

Cookie	Duration	Description
cookielawinfo-checkbox-performance	1 year	Set by the GDPR Cookie Consent plugin, this cookie is used to store the user consent for cookies in the category "Performance".
pageviewCount	1 month
pageviewCountSession	50 years ago
__cf_bm		This cookie, set by Cloudflare, is used to support Cloudflare Bot Management.

These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.

Cookie	Duration	Description
cookielawinfo-checkbox-targeting	1 year	Set by the GDPR Cookie Consent plugin, this cookie is used to store the user consent for cookies in the category "Targeting".
fr	2 months	The cookie is set by Facebook to show relevant advertisments to the users and measure and improve the advertisements. The cookie also tracks the behavior of the user across the web on sites that have Facebook pixel or Facebook social plugin.
mid	2 years	The cookie is set by Instagram. The cookie is used to distinguish users and to show relevant content, for better user experience and security.
test_cookie	15 minutes	This cookie is set by doubleclick.net. The purpose of the cookie is to determine if the users' browser supports cookies.
VISITOR_INFO1_LIVE	5 months	This cookie is set by Youtube. Used to track the information of the embedded YouTube videos on a website.
YSC		This cookies is set by Youtube and is used to track the views of embedded videos.
_pinterest_ct_ua	1 year

Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.

Cookie	Duration	Description
CLID	1 year	No description
SM	session	No description available.
_clck		No description
_clsk	1 day	No description
_derived_epik		No description available.
_pk_id.1.74a4	1 year 27 days	No description
_pk_ses.1.74a4	30 minutes	No description

Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.

Cookie	Duration	Description
ANONCHK	10 minutes	The ANONCHK cookie, set by Bing, is used to store a user's session ID and also verify the clicks from ads on the Bing search engine. The cookie helps in reporting and personalization as well.
MUID	1 year 24 days	Bing sets this cookie to recognize unique web browsers visiting Microsoft sites. This cookie is used for advertising, site analytics, and other operations.
SRM_B		Used by Microsoft Advertising as a unique ID for visitors.
yt-remote-connected-devices		YouTube sets this cookie to store the video preferences of the user using embedded YouTube video.
yt-remote-device-id		YouTube sets this cookie to store the video preferences of the user using embedded YouTube video.
_fbp	2 months	This cookie is set by Facebook to deliver advertisement when they are on Facebook or a digital platform powered by Facebook advertising after visiting this website.

Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.

Cookie	Duration	Description
CONSENT	2 years	YouTube sets this cookie via embedded youtube-videos and registers anonymous statistical data.
ps_analytics	1 month	No description available.
_dc_gtm_UA-17226617-1	1 minute
_ga	2 years	This cookie is installed by Google Analytics. The cookie is used to calculate visitor, session, camapign data and keep track of site usage for the site's analytics report. The cookies store information anonymously and assigns a randoly generated number to identify unique visitors.
_gat_UA-17226617-1	1 minute	This is a pattern type cookie set by Google Analytics, where the pattern element on the name contains the unique identity number of the account or website it relates to. It appears to be a variation of the _gat cookie which is used to limit the amount of data recorded by Google on high traffic volume websites.
_ga_ZWFL2K1EJ3	2 years
_gcl_au		Provided by Google Tag Manager to experiment advertisement efficiency of websites using their services.
_gid	1 day	This cookie is installed by Google Analytics. The cookie is used to store information of how visitors use a website and helps in creating an analytics report of how the wbsite is doing. The data collected including the number visitors, the source where they have come from, and the pages viisted in an anonymous form.