The Illustrated Optical Manual, Or Handbook of Instructions for the Guidance of Surgeons in Testing Quality and Range of Vision, and in Distinguishing and Dealing with Optical Defects in GeneralLongmans, Green, 1888 - 239 páginas |
Dentro del libro
Resultados 1-5 de 58
Página xxi
... parallel , converging , and diverging incident rays 22. Action of concave lens on parallel , converging , and diverging incident rays 23. Spherical aberration ' 24. Chromatic aberration 25. Principal features of a cylinder 26. Plano ...
... parallel , converging , and diverging incident rays 22. Action of concave lens on parallel , converging , and diverging incident rays 23. Spherical aberration ' 24. Chromatic aberration 25. Principal features of a cylinder 26. Plano ...
Página 5
... parallel , or nearly parallel , with each other ; in proportion as the object viewed approaches nearer to the observer , the visual lines from the two СНАР . І 5 OPTIC AXIS AND VISUAL AXIS.
... parallel , or nearly parallel , with each other ; in proportion as the object viewed approaches nearer to the observer , the visual lines from the two СНАР . І 5 OPTIC AXIS AND VISUAL AXIS.
Página 6
... parallel rays . When rays are artificially A F B FIG . 7 . A , pencil of rays diverging from the focus F ; B , paralel rays ; c , pencil of rays con- Verging to the focus F. FIG . 6. - RADIATION FROM A CENTRAL SOURCE OF LIGHT . caused ...
... parallel rays . When rays are artificially A F B FIG . 7 . A , pencil of rays diverging from the focus F ; B , paralel rays ; c , pencil of rays con- Verging to the focus F. FIG . 6. - RADIATION FROM A CENTRAL SOURCE OF LIGHT . caused ...
Página 8
... parallel surfaces ; IR , incident ray in air ; KR , incident ray refracted towards the perpendicular in passing through RM ; ER , emergent ray refracted from the perpendicular in passing out of RM into air . denser medium , it is bent ...
... parallel surfaces ; IR , incident ray in air ; KR , incident ray refracted towards the perpendicular in passing through RM ; ER , emergent ray refracted from the perpendicular in passing out of RM into air . denser medium , it is bent ...
Página 12
... parallel with one another , the limiting lines of visual perception or luminous impression on each side of the face form an angle of about 90 ° , so that the general field of vision of the two eyes under these conditions has a hori ...
... parallel with one another , the limiting lines of visual perception or luminous impression on each side of the face form an angle of about 90 ° , so that the general field of vision of the two eyes under these conditions has a hori ...
Otras ediciones - Ver todas
The Illustrated Optical Manual: Or Handbook of Instructions for the Guidance ... T. Longmore Sin vista previa disponible - 2018 |
The Illustrated Optical Manual, Or Handbook of Instructions for the Guidance ... Thomas Longmore, Sir Sin vista previa disponible - 2016 |
Términos y frases comunes
accommodation acuteness of vision amblyopia ametropia ametropic amount of Acc appear army asthenopia astigmatic eye astigmatism axis binocular vision bull's-eye cause centre ciliary muscle colour colour-blindness concave lens convex lens cornea correcting lens correction Crown 8vo curvature cylindrical lens defect Diagnosis diffusion dioptric diplopia direction distance distant objects distant point distinct vision emmetropic examination exerted exist eye under observation feet focal fundus glasses inches keratoscopy left eye lenses lessened medical officer meridian Mc military service mirror myope myopic neutralised normal acuteness ocular ophthalmoscopic optic parallel rays patient person placed point of distinct power of Acc practice principal focus principal meridians prism rays of light rays proceeding recruit refractive defect refractive power refractive quality regards rendered retina retinal images rifle right eye seen shadow sight soldier spectacles spherical strabismus surgeon target test-dots tion unfit visual acuteness visual angle visual lines
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