“Normal-looking glasses” are the holy grail of augmented reality. Major tech companies like Google and Intel have joined startups like North and social media giants like Snap in trying to design something people can wear over their eyes without feeling like a total weirdo and, more importantly, without making the people around them uncomfortable. Nobody has cracked this code after almost a decade of concerted effort — but Chinese phone maker Oppo is at least having some fun with the…