Last Updated
：2025/11/29
spot lens
Noun
Japanese Meaning
（顕微鏡用語）暗視野照明に用いる、光を環状のペンシル状に集束させるため、小さな円形の絞り（スポット）を備えた集光レンズ
（ plural ）
Quizzes for review
(microscopy) A condensing lens in which the light is confined to an annular pencil by means of a small, round diaphragm (the spot
), and used in darkfield illumination.
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spot lens
To achieve darkfield illumination, the technician carefully positioned the spot lens so the light was confined to an annular pencil around the specimen.
See correct answer
To achieve darkfield illumination, the technician carefully positioned the spot lens so the light was confined to an annular pencil around the specimen.
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