I'm going to re-visit this, but I need a placeholder.
As I'm translating into 10.50 of the Epistle to Hēródotos, I am finding a shit-ton of employments of phantastikai epibolai tês dianoias as τὴν φαντασίαν, φαντασίαν ἐπιβλητικῶς τῇ διανοίᾳ, τῇ φανταστικῇ ἐπιβολῇ, τῶν φαντασμῶν, τινὰς ἐπιβολὰς τῆς διανοίας , τῇ φανταστικῇ ἐπιβολῇ, and I am sure many others. He specifically starts throwing around this phrase when discussing the mechanics of sight.
He drops this phrase (as I recall) once in the KD, and once (I think) by Diogénēs Laértios in his own description. As it turns out Ep. Hēr. provides us with a real wealth of examples of this phrase.
... also, neither here nor there, but I detect a tone of admonishment from Epíkouros toward Hērodotos.