Pregled bibliografske jedinice broj: 712720
How to convert the obliquely crossed to non-crossed astigmatism? A simple method using vector analysis
How to convert the obliquely crossed to non-crossed astigmatism? A simple method using vector analysis // Collegium antropologicum, 37 (2013), S1; 103-106 (međunarodna recenzija, članak, znanstveni)
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Naslov
How to convert the obliquely crossed to non-crossed astigmatism? A simple method using vector analysis
Autori
Vojniković, Božo ; Gabrić, Nikica ; Dekaris, Iva
Izvornik
Collegium antropologicum (0350-6134) 37
(2013), S1;
103-106
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
astigmatism; Thompson formula; obliquely crossed astigmatism; principal meridians; vector analysis
Sažetak
The authors discussed about the problem of special form in astigmatism classification. This special type of astigmatism is the form of obliquely crossed astigmatism. In which the meridians, major and minor, are not right angles. In this astigmatism is not possible to prescribing for cylindrical (toric) spectacle lens. Authors describe the Thompson formula for oblique crossed cylinder and observe that this formula is to complicate for calculation new cylinder power. In this reason, the authors create the new formula and simple procedure for this calculation. This simple formula based on vector analysis and read: DM3 = DM2 x cos2 beta.
Izvorni jezik
Engleski
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Social Science Citation Index (SSCI)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
- MEDLINE
