objective

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Synonyms for objective

Synonyms for objective

Synonyms for objective

the goal intended to be attained (and which is believed to be attainable)

the lens or system of lenses in a telescope or microscope that is nearest the object being viewed

undistorted by emotion or personal bias

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serving as or indicating the object of a verb or of certain prepositions and used for certain other purposes

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emphasizing or expressing things as perceived without distortion of personal feelings, insertion of fictional matter, or interpretation

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belonging to immediate experience of actual things or events

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References in periodicals archive ?
This little refractor features an ED achromatic objective lens of 3.1-inch (80-mm) aperture and 720-mm focal length (f/9).
But it's also long enough to avoid the extreme false color that sometimes exists with inexpensive achromatic objectives. An unusual feature of the Infinity 90 is that it includes a 90[degrees] image-erecting prism that shows objects in correct orientation rather than mirror-reversed as with most refractors used with a conventional star diagonal --very handy for terrestrial viewing.
The typical achromatic objective designed for visual use has yellow-green light (with a wavelength around 555 nanometers, where the eye is most sensitive) come to focus slightly closer to the objective than blue (around 486 nm) and red (around 656 nm).
An achromatic objective, which consists of two pieces of dissimilar glass, brings the focus points of the colors much closer together than a single lens can.
The two elements of the refractor's achromatic objective were misaligned when a first set of plates was taken from South Africa in the 1930s, says Platais, but not when a second set of photographs was taken four decades later by the telescope, which by then had been reassembled in Australia.
When English optician John Dollond introduced the achromatic objective lens in the mid-18th century, competitors came out with forged "Dolond" and "Dolland" telescopes in the hope of cashing in on the invention!