| 摘要 |
PURPOSE: An optical device with a replaceable image lens is provided to allow separation of a lightening lens and an image lens as an independent part, thereby cutting time and cost for manufacturing optical devices. CONSTITUTION: A lighting lens(120) condenses light from light source and irradiates on an object surface. An image lens(130) condenses reflected light from the object surface into an image sensor(140). The image sensor senses condensed light through the image lens. A base member(150) controls amount of light flowed into the image sensor. The image lens is able to be detached from a micro optical device as an independent part. The image lens is attached to the base member.
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