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physical object > artifact > device > instrument > optical device > wavefront modifier > lens > achromatic lens > achromatic objective |
achromatic objective comparison table |
Subject | is a kind of | has definition |
---|---|---|
achromatic lens | lens | Lens (or combination of lenses) that brings different wavelenghts within a ray of light to a single focus, thus overcoming chromatic aberration. It was first successfully made by Joseph von Fraunhofer. |
achromatic objective | achromatic lens | A lens of two or more components with different refraction indices (e.g., crown glass and flint glass), used to correct for chromatic aberration. |
Up: achromatic lens