"Collimator" is a word in ENGLISH
A telescope arranged and used to determine errors of
collimation, both vertical and horizontal.
A tube having a convex lens at one end and at the other
a small opening or slit which is at the principal focus of the lens,
used for producing a beam of parallel rays; also, a lens so used.
The best sleep imaginable is sleeping in your dreams
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Several years ago, Andy was sentenced to prison. During his stay, he got along well with the guards and all his fellow inmates. The warden saw that deep down, Andy was a good person and made arrangements for Andy to learn a trade while doing his time. After three years, Andy was recognized as one of the best carpenters in the local area. Often he would be given a weekend pass to do odd jobs for the citizens of the community.... and he always reported back to prison before Sunday night was over.The warden was thinking of remodeling his kitchen and in fact had done much of the work himself. But he lacked the skills to build a set of kitchen cupboards and a large counter top which he had promised his wife. So he called Andy into his office and asked him to complete the job for him.But, alas, Andy refused. He told the warden, "Gosh, I'd really like to help you but counter fitting is what got me into prison in the first place".
An anomalous state of refraction caused by the absence of the crystalline lens, as after operations for cataract. The remedy …
Read the complete definitionA lens or mirror, usually of short focal distance, used to concentrate light upon an object.
Read the complete definitionThat which burns by refraction, as a double convex lens, or the sun's rays concentrated by such a lens, sometimes …
Read the complete definitionA lens of glass to assist the sight. Eyeglasses are used singly or in pairs.
Read the complete definitionAn animal of the genus equus and species caballus. In a narrow and strict sense, the term Ib applied only …
Read the complete definitionA piece of glass, or other transparent substance, ground with two opposite regular surfaces, either both curved, or one curved …
Read the complete definitionA leguminous plant of the genus Ervum (Ervum Lens), of small size, common in the fields in Europe. Also, its …
Read the complete definitionlinti n {1} lens, magnifying glass. {2} searchlight. v {1} [b] use a magnifying glass on s.t. Lintíhi ang mga …
Read the complete definitionNearsightedness; shortsightedness; a condition of the eye in which the rays from distant object are brought to a focus before …
Read the complete definitionpamusílang - To wear spectacles or glasses; to use a magnifying glass or lens. (cf. siláng, tagosílang).
Read the complete definitionA defect of vision consequent upon advancing age. It is due to rigidity of the crystalline lens, which produces difficulty …
Read the complete definitionThe reciprocal of the focal distance of a lens, used as measure of the divergence or convergence of a pencil …
Read the complete definition