Apple’s anticipated augmented reality (AR) glasses have entered the design development stage and will reach prototype level by the end of this year, a market research analyst has said in a note. The glasses, which are rumoured to be called the Apple AR Glass, are said to debut sometime in 2024. The analyst has also speculated whether one or two models of the iPhone 15 Pro would come with a periscope lens. The presence of the periscope lens is…