Anyone who's ordered a pair of glasses will likely have experienced trial frames. When being measured for eyeglasses, various test lenses are positioned in layers in these special frames, in order to find the optimum values from which to make the most suitable final lenses.
In the industry, these are known as “trial” or “temporary” frames, and to most people they all appear the same. However, investigate further and you'll find that there are actually various types.
Of course, since this is medical equipment, such items can't be sold to the public, but they do nonetheless possess a mechanical charm.
メガネを誂えたことのある人なら誰でも、トライアルフレームをかけたことがあるはず。これは眼鏡店で視力測定をするときに、テストレンズを何枚も重ねて入れ、最適なレンズを作成するための光学数値を割り出すものだ。
業界では「検査枠」とか「仮枠」などと呼ばれるが、一般ユーザーにはどれも同じに見えてしまうだろう。しかし、調べてみるとタイプもいろいろ。
無論、医療機器につき一般消費者には販売されないアイテムだが、そのメカっぽさに、なんとも惹きつけられてしまうのだ。
