A resource for students, teachers, and independent researchers.
DEFINE A TERM
Our DICTIONARY OF LIGHT, COLOUR & VISION defines and explains the family of terms we use to discuss core topics.
READ AN ARTICLE
Read about light, colour, vision and how to see more in our library of hand-crafted articles
RECENTLY ADDED DIAGRAMS
Our DIAGRAMS aim to introduce ideas in an instant and are followed by explanations that burrow into the detail, one step at a time.
LIGHTCOLOURVISION BLOG
Kia ora to all our friends, supporters and visitors.
In case all this is new to you, lightcolourvision.org is a non-profit project exploring light, colour, and vision, and also asks the question, how can we see more? In a nutshell, it’s all about making sense and developing our views of ourselves and the world. It’s designed as a resource for students, teachers, educators and researchers of all ages.
Donate Now
Every cent helps 🙂
SITE UPDATES
13.02.26 v4.1
- Reconfigure WooCommerce download virtual products pages to make the process fully functional.
- Virtual product file names didn’t migrate as part of the hosting upgrade. Reload all titles of .jpg and .ai products for available for download.
21.08.25 v4.00
- MIGRATE hosting with GoDaddy from MANAGED WORDPRESS to WEBHOSTING PLUS to accommodate more data and greater speed.
11.06.25 v3.95
- Complete re-edit of CSS file for easier reading: new section titles and order.
01.10.24 v3.9
- Completed edit of the SUMMARIES section of the DICTIONARY. Now contains a total of 270 updated entries.
05.08.24 v3.8
- Historical issues with page load times have been resolved.
- Dictionary rebuilt to improve page load times.
- Permastructure update to resolve issues with page load times.
02.04.24 v3.7
- Complete the process of editing the content of the dictionary’s DEFINITIONS and ABOUT entries.
- The library now contains:
- 286 DEFINITIONS
- 103 SUMMARIES
- 102 ABOUT entries
- A new set of 12 DIAGRAMS that introduce electromagnetism at the sub-atomic scale is almost ready to publish.
- Site visits topped 39,600 visits in the last 12 months for the first time. Page visits top 102,900 in the last 12 months for the first time.
- Sense of urgency increases to get site pages to load faster and to resolve other anomalies in the user experience.
01.12.23 v3.6
- Continue with the process of editing the dictionary DEFINITIONS and SUMMARIES.
- Add ABOUT entries to the dictionary that bridge two or more DEFINITIONS.
- Begin work on a new section entitled ELECTROMAGNETISM – AN INTRODUCTION.
- Begin work on diagrams and definitions that introduce electromagnetism at the sub-atomic scale.
12.06.23: Launch v3.5
- Update the backend of all DIAGRAM PAGES, including standardising all titles, file names, slugs and URLs.
- Standardise all SEO information for DIAGRAM PAGES.
- Check that all DIAGRAM PAGES appear in GOOGLE IMAGE SEARCH results.
- Continue with the process of editing the dictionary DEFINITIONS and SUMMARIES.
25.04.23: Launch v3.4
- Continue with the process of editing the dictionary DEFINITIONS and SUMMARIES.
- Remove incompatible plugins from the back end.
- Adjust the layout of the DIAGRAMS pages to format correctly without using a plugin.
- Redesign the download dialogue box on the DIAGRAMS pages to improve usability.
- Editing of all dictionary DEFINITIONS and SUMMARIES is ongoing. The task involves updating around 4000 bullet points. The job is now around 50% complete.
- Adding ABOUT entries to the dictionary is ongoing. ABOUT entries enable content to be produced that includes more than one concept. Examples include the HSB colour model & saturation and Additive colour and the RGB colour model.
- ChatGPT is now my go-to method for fact-checking and improving the sentence structure of DEFINITIONS and SUMMARIES.
- Rebuilding the backend of the DICTIONARY is now complete. A new template has been applied to all DEFINITIONS and SUMMARIES.
- Back-end functionality has also been changed so that more content on the DIAGRAM pages is inserted from the DICTIONARY. This includes DEFINITIONS, SUMMARIES and ABOUT sections. The change means less duplication of entries across the whole site.
01.08.22: Launch v3.2
- Complete and upload Rainbows in Detail and Vision in Detail.
- Replace Q&A pop-up functionality with dropdown style functionality.
- Add functionality to generate a different set of Q&As each time a DIAGRAM page is loaded.
- Add another 60 Q&As (Total = 250).
- Restructure HAMBURGER MENU to improve site navigation.
- Replace the existing search plugin with Ivory Search and create a new SEARCH PAGE.
- Close the Cloudflare account and move the CDN to GoDaddy. This change-over reduces unauthorised login attempts from around 100/day to an average of 1/day.
01.05.22: Launch v3.1
- Complete upload of new versions of all DIAGRAMS (black backgrounds), Montserrat titles and improved layout.
- Update all downloadable DIAGRAM FILES (jpeg, ai) to the latest versions.
- Upgrade the site to Premium WordPress.
- Upgrade DNS.
- Upgraded site security.
01.02.22: Launch v3.0
- The final design of the site goes live:
- Redesigned HOME PAGE
- Redesigned DIAGRAMS PAGES
- Redesigned NAVIGATION