The e-ILV provides free access to all the terms and definitions contained in the international standard CIE S 017:2020 ILV: International Lighting Vocabulary, 2nd edition.
To search for another term please use "Back to the list" to return to the main page or the e-ILV.
For the complete set of terms and definitions CIE S 017:2020 can be purchased from the CIE Webshop. Members of a CIE National Committee or Associate National Committee have access to a 66,7 % discount on the purchase price of the standard.
For advice on CIE Publications contact helpdesk@cie.co.at. Note the CIE Helpdesk cannot assist with technical enquiries.
blind spot
location where the optic nerve joins to the retina and where there are no photoreceptors
Note 1 to entry: Because there are no photoreceptors at the blind spot, the retina cannot respond to light at this location.
Note 2 to entry: The retinal location of the blind spot is about 15° nasal from the fovea in the visual angle and subtends about 7° in height and about 5° in width.