Apochromat
Definition
A complex optical system consisting of multiple lenses made from different types of glass, capable of correcting chromatic aberration for three distinct wavelengths of the visible spectrum and spherical aberration for two wavelengths. This high-precision device ensures an identical focal point for red, green, and blue colors, completely eliminating parasitic color fringes from the edges of captured images.
Bilingual Equivalents
- Apochromat
- Apochromatic lens
Grammatical & Source Details
| Inflection Type | Neuter noun with standard regular plural forms and case inflections. |
| Formation | Neologistic borrowing from German 'Apochromat', rooted in the Greek prefix 'apo-' (away from) and 'khroma' (color). |
| Spelling / Pronunciation | [a.po.kro.ˈmat] |
| Source | Lexicon of Optical Engineering, Precision Instruments, and Applied Photonics |
Contextual Usage Examples
RO: Pentru astrofotografie de înaltă performanță, un apocromat este considerat instrumentul ideal datorită clarității imaginii.
EN: For high-performance astrophotography, an apochromat is considered the ideal instrument due to image clarity.
RO: Inginerul a proiectat un nou apocromat folosind lentile speciale din fluorură de calciu pentru a reduce reflexiile.
EN: The engineer designed a new apochromat using special calcium fluoride lenses to reduce reflections.
RO: Prețul ridicat pentru acest apocromat este justificat de procesul extrem de laborios de șlefuire a sticlei optice.
EN: The high price for this apochromat is justified by the extremely laborious process of polishing the optical glass.
Idioms & Phrases
Apocromat astronomic / Astronomical apochromat / apochromatic refractor
RO: Telescop cu refractie dotat cu un obiectiv corectat optic, utilizat pentru observarea planetelor fără distorsiuni de culoare.
EN: A refracting telescope equipped with an optically corrected objective lens, used for observing planets without color distortions.
Design de apocromat / Apochromat design / triplet design
RO: Configurație tehnică formată de obicei din trei lentile lipite sau separate prin aer, calculată matematic pentru convergența razelor.
EN: A technical configuration usually consisting of three lenses cemented or air-spaced, mathematically calculated for ray convergence.
Sistem apocromat / Apochromat system
RO: Ansamblu optic microscopic sau telescopic avansat care îndeplinește cele mai înalte standarde de fidelitate a culorilor.
EN: An advanced microscopic or telescopic optical assembly that meets the highest standards of color fidelity.
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