The one-half wavelength out of phase caused by the specimen itself enables this light to cause destructive interference with the direct light when both arrive at the intermediate image plane at the diaphragm of the eyepiece.
英
美
- 這種由標本產(chǎn)生的半個(gè)波長(cháng)的相位差的光線(xiàn)與直射光同時(shí)到達位于目鏡光欄的中間像面時(shí)會(huì )產(chǎn)生相消的干涉。
