The fan, labeled '155,' is located on the bottom of the flash head. A recent patent application from Canon details the schematics for a hybrid speedlight that has built-in cooling for keeping the speedlight cool with continuous use. Japanese patent application 2019-185021 shows various ways in which a fan underneath the flash head of the speedlight would pull in air from the ambient environment, direct it over the front of the main flash tube and cycle it out to keep temperatures at a more manag...
Canon patent application details hybrid speedlight with active cooling via internal fan
DP Review - 3 Nov 2019 23:32
The fan, labeled '155,' is located on the bottom of the flash head. A recent patent application from Canon details the schematics for a hybrid speedlight that has built-in cooling for keeping the speedlight cool with continuous use. Japanese patent application 2019-185021 shows various ways in which a fan underneath the flash head of the speedlight would pull in air from the ambient environment, direct it over the front of the main flash tube and cycle it out to keep temperatures at a more manag...
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