Achromatic Lens Definitions

Useful Words

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Accommodating Iol : آنکھ میں لینس لگانے کا عمل , Camera : فلم بنانے کا آلہ , Telephoto Lens : زوم عدسہ , Aberration : خراب عکس , Refracting Telescope : انعطافی دوربین , Compound Lens : مرکب شیشے , Accommodational : آنکھ کی پتلی کا , Cortex : چھال , Telephoto : دور عکسی , Cataract : سفید موتیا , Accommodation : آنکھ کے لینس کا آگے پیچھے ہونا , Compound Microscope : مرکب خردبین , Concave Lens : مقعر شیشہ , Eyeglass : یک چشمی عینک , Farsightedness : ضعف بصارت , Camera : تصویر کھینچنے کا آلہ , Auriscope : گوش بیں آلہ , Gray : سرمئی , Black : سیاہ , White : سفید , White : سفید , Aplanatic : بے نقص , Afterimage : منفی تصویر , Xerography : روشنی اور بجلی کے ذریعے تصویر بنانا , Aberrate : سیدھی راہ سے ہٹنا , Color-Blind : رنگوں میں امتیاز نہ کر سکنے والا , Achromaticity : پھیکا پن , Rachis : پھول ڈنڈی , Harmonica : موسیقی کا آلہ جسے پھونک مار کر بجایا جاتا ہے , Hindooism : ہندو عقائد , Aseptic : جراثیم سے پاک

Useful Words Definitions

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Accommodating Iol: a lens implant containing a hinge that allows for both near and far vision (thus mimicking the natural lens of a young person).

Camera: television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam.

Telephoto Lens: a camera lens that magnifies the image.

Aberration: an optical phenomenon resulting from the failure of a lens or mirror to produce a good image.

Refracting Telescope: optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece.

Compound Lens: a lens system consisting of two or more lenses on the same axis.

Accommodational: of or relating to the accommodation of the lens of the eye.

Cortex: the tissue that surrounds the lens nucleus.

Telephoto: a photograph made with a telephoto lens.

Cataract: an eye disease that involves the clouding or opacification of the natural lens of the eye.

Accommodation: (physiology) the automatic adjustment in focal length of the natural lens of the eye.

Compound Microscope: light microscope that has two converging lens systems: the objective and the eyepiece.

Concave Lens: a lens such that a parallel beam of light passing through it is caused to diverge or spread out.

Eyeglass: lens for correcting defective vision in one eye; held in place by facial muscles.

Farsightedness: a reduced ability to focus on near objects caused by loss of elasticity of the crystalline lens after age 45.

Camera: equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other).

Auriscope: medical instrument consisting of a magnifying lens and light; used for examining the external ear (the auditory meatus and especially the tympanic membrane).

Gray: of an achromatic color of any lightness intermediate between the extremes of white and black.

Black: the quality or state of the achromatic color of least lightness (bearing the least resemblance to white).

White: being of the achromatic color of maximum lightness; having little or no hue owing to reflection of almost all incident light.

White: the quality or state of the achromatic color of greatest lightness (bearing the least resemblance to black).

Aplanatic: free from or corrected for spherical aberration.

Afterimage: an image (usually a negative image) that persists after stimulation has ceased.

Xerography: forming an image by the action of light on a specially coated charged plate; the latent image is developed with powders that adhere only to electrically charged areas.

Aberrate: diverge or deviate from the straight path; produce aberration.

Color-Blind: unable to distinguish one or more chromatic colors.

Achromaticity: the visual property of being without chromatic color.

Rachis: axis of a compound leaf or compound inflorescence.

Harmonica: a small rectangular free-reed instrument having a row of free reeds set back in air holes and played by blowing into the desired hole.

Hindooism: a body of religious and philosophical beliefs and cultural practices native to India and based on a caste system; it is characterized by a belief in reincarnation, by a belief in a supreme being of many forms and natures, by the view that opposing theories are aspects of one eternal truth, and by a desire for liberation from earthly evils.

Aseptic: free of or using methods to keep free of pathological microorganisms.