English-Thai Dictionary

optical

ADJ เกี่ยวกับ สายตา  visible visual kiao-kab-sai-ta

 

optical activity

N ความสามารถ ใน การ หมุน แนวราบ ของ ขั้ว แสง ของ สาร 

 

optical character recognition

N การรู้จำ ตัวอักษร (คำย่อ คือ  OCR kan-ru-jam-tua-ak-son

 

optical disc

ADJ แผ่น เก็บข้อมูล  optical disk pean-kab-kor-mun

 

optical disk

ADJ แผ่น เก็บข้อมูล  optical disc pean-kab-kor-mun

 

optical fiber

N เส้นใยแก้ว ที่ ใช้ ใน การ สื่อ นำ ข้อมูล  optical fibre sen-yai-kao-ti-chai-nai-kan-nam-sue-kor-mun

 

optical fibre

N เส้นใยแก้ว ที่ ใช้ ใน การ สื่อ นำ ข้อมูล  optical fiber sen-yai-kao-ti-chai-nai-kan-nam-sue-kor-mun

 

optical illusion

N ภาพลวงตา  pab-luang-ta

 

optically

ADV เกี่ยวกับ สายตา  kiao-kab-sai-ta

 

Webster's 1913 Dictionary

OPTICALLY

OPTICALLY Op "tic *al *ly, adv.

 

Defn: By optics or sight; with reference to optics. Optically active, Optically inactive (Chem. Physics ), terms used of certain metameric substances which, while identical with each other in other respects, differ in this, viz. , that they do or do not produce right-handed or left-handed circular polarization of light. -- Optically positive, Optically negative. See under Refraction.

 

New American Oxford Dictionary

optical

op ti cal |ˈäptikəl ˈɑptəkəl | ▶adjective 1 of or relating to sight, esp. in relation to the physical action of light: optical illusions. • constructed to assist sight. • devised on the principles of optics. 2 Physics operating in or employing the visible part of the electromagnetic spectrum: optical telescopes. • Electronics (of a device ) requiring electromagnetic radiation for its operation: integrated optical circuits. DERIVATIVES op ti cal ly |-ik (ə )lē |adverb

 

optical activity

op ti cal ac tiv i ty ▶noun Chemistry the property (displayed by solutions of some compounds, notably many sugars ) of rotating the plane of polarization of plane-polarized light.

 

optical art

op ti cal art ▶noun another term for op art.

 

optical axis

op ti cal ax is ▶noun Physics a line passing through the center of curvature of a lens or spherical mirror and parallel to the axis of symmetry. • Crystallography a direction in a doubly refracting crystal along which a light ray does not undergo double refraction.

 

optical bench

op ti cal bench ▶noun a straight rigid bar, typically marked with a scale, to which lenses, light sources, and other optical components can be attached.

 

optical brightener

op ti cal bright en er ▶noun a fluorescent substance added to detergents in order to produce a whitening effect on laundry.

 

optical character recognition

op ti cal char ac ter rec og ni tion |ˈɑptəkəl ˈkɛr (ə )ktər ˌrɛkəɡˈnɪʃən |(abbr.: OCR ) ▶noun the identification of printed characters using photoelectric devices and computer software.

 

optical density

op ti cal den si ty ▶noun Physics the degree to which a refractive medium retards transmitted rays of light.

 

optical disk

op ti cal disk ▶noun see disk ( sense 1 of the noun ).

 

optical double

op ti cal dou ble ▶noun Astronomy two stars that are in the same line of sight as seen from the earth, but that may be at far different distances. See also double star.

 

optical fiber

op ti cal fi ber ▶noun a thin glass fiber through which light can be transmitted.

 

optical glass

op ti cal glass ▶noun a very pure kind of glass used for lenses.

 

optical illusion

op ti cal il lu sion |ˈɑptəkəl ɪˈluʒən | ▶noun an experience of seeming to see something that does not exist or that is other than it appears. • something that deceives one's eyes and causes such an experience.

 

optical isomer

op ti cal i so mer ▶noun Chemistry each of two or more forms of a compound that have the same structure but are mirror images of each other and typically differ in optical activity. DERIVATIVES op ti cal i som er ism noun

 

optical microscope

op ti cal mi cro scope ▶noun a microscope using visible light, typically viewed directly by the eye.

 

optical path

op ti cal path ▶noun Physics the distance of the path that in a vacuum would contain the same number of wavelengths as the actual path taken by a ray of light traveling through a medium.

 

optical rotation

op ti cal ro ta tion ▶noun Chemistry the rotation of the plane of polarization of plane-polarized light by an optically active substance.

 

optical scanner

op ti cal scan ner ▶noun Electronics a device that performs optical character recognition and produces coded signals corresponding to the characters identified.

 

optical turnstile

op ti cal turn stile ▶noun an access control system without barriers in which those attempting to enter are evaluated by closed-circuit television or other visual means.

 

optical tweezers

op ti cal tweez ers ▶plural noun a device that uses light from a low-wattage laser to manipulate individual molecules within cells. Also called laser tweezers.

 

Oxford Dictionary

optical

op |tic ¦al |ˈɒptɪk (ə )l | ▶adjective 1 relating to sight, especially in relation to the action of light: optical illusions. • constructed to assist sight: an optical aid. • relating to the science of optics. 2 Physics operating in or employing the visible part of the electromagnetic spectrum: optical telescopes. • Electronics (of a device ) requiring electromagnetic radiation for its operation: integrated optical circuits. ▶noun (opticals ) Indian a pair of glasses: he pushed his opticals on to the bridge of his nose. DERIVATIVES optically adverb

 

optical activity

op |tic ¦al ac ¦tiv |ity ▶noun [ mass noun ] Chemistry the property (displayed by solutions of some compounds, notably many sugars ) of rotating the plane of polarization of plane-polarized light.

 

optical art

op |tic ¦al art ▶noun another term for op art.

 

optical axis

op |tic ¦al axis ▶noun 1 a line passing through the centre of curvature of a lens or spherical mirror and parallel to the axis of symmetry. 2 Crystallography a direction in a doubly refracting crystal along which a light ray does not undergo double refraction.

 

optical bench

op |tic ¦al bench ▶noun a straight rigid bar, typically marked with a scale, to which supports for lenses, light sources, and other optical components can be attached.

 

optical brightener

op |tic ¦al brightener ▶noun a fluorescent substance added to detergents in order to produce a whitening effect on laundry.

 

optical character recognition

op |tic ¦al char |ac ¦ter rec ¦og |ni ¦tion ▶noun [ mass noun ] the identification of printed characters using photoelectric devices and computer software.

 

optical density

op |tic ¦al dens |ity ▶noun Physics the degree to which a refractive medium retards transmitted rays of light.

 

optical disk

op |tic ¦al disk ▶noun see disc ( sense 1 ).

 

optical double

op |tic ¦al double ▶noun Astronomy a group of two stars which appear to constitute a double star due to their being in the same line of sight as seen from the earth, but are actually at different distances.

 

optical fibre

op |tic ¦al fibre ▶noun a thin glass fibre through which light can be transmitted.

 

optical glass

op |tic ¦al glass ▶noun [ mass noun ] a very pure kind of glass used for lenses.

 

optical illusion

op |tic ¦al il ¦lu |sion ▶noun something that deceives the eye by appearing to be other than it is. • an experience of seeming to see something which does not exist or is other than it appears.

 

optical indicatrix

op |tic ¦al in ¦di |ca ¦trix ▶noun see indicatrix.

 

optical isomer

op |tic ¦al iso ¦mer ▶noun Chemistry each of two or more forms of a compound which have the same structure but are mirror images of each other and typically differ in optical activity. DERIVATIVES optical isomerism noun

 

optical microscope

op |tic ¦al micro |scope ▶noun a microscope using visible light, typically viewed directly by the eye.

 

optical path

op |tic ¦al path ▶noun Physics the distance which in a vacuum would contain the same number of wavelengths as the actual path taken by a ray of light.

 

optical rotation

op |tic ¦al ro |ta ¦tion ▶noun [ mass noun ] Chemistry the rotation of the plane of polarization of plane-polarized light by an optically active substance.

 

optical scanner

op |tic ¦al scan |ner ▶noun Electronics a device which performs optical character recognition and produces coded signals corresponding to the characters identified.

 

optical turnstile

op ti cal turn stile ▶noun an access control system without barriers in which those attempting to enter are evaluated by closed-circuit television or other visual means.

 

optical tweezers

op ti cal tweez ers ▶plural noun a device that uses light from a low-wattage laser to manipulate individual molecules within cells. Also called laser tweezers.

 

Duden Dictionary

Optical Art

Op ti cal Art Substantiv, feminin , die |ˈɔptɪkl̩ ˈaːɐ̯t |die Optical Art; Genitiv: der Optical Art englisch optical art, eigentlich = optische Kunst Op-Art

 

Optical Disc

Op ti cal Disc Substantiv, feminin , die |Optical D i sc ˈɔptɪkl̩ ˈdɪsk |die Optical Disc; Genitiv: der Optical Disc, Optical Discs englisch ; »optische Scheibe «Bildplatte

 

Sanseido Wisdom Dictionary

optical

op ti cal /ɑ́ptɪk (ə )l |ɔ́p -/形容詞 1 〖通例 名詞 の前で 〗光学の, 光の .2 〖名詞 の前で 〗目の, 視力の, 視覚の .～́ à rt ＝op 1 (art ).～̀ ch á racter recogn ì tion [r è ader ]〘コンピュ 〙光学式文字認識 [読み取り装置 ](｟略 ｠OCR ).～̀ d í sk 光ディスク .～̀ f í ber 光ファイバー .～̀ ill ú sion 〘心 〙錯覚 .～̀ m á rk recogn ì tion [r è ader ]〘コンピュ 〙光学式マーク読み取り [読み取り装置 ](｟略 ｠OMR ).～ly 副詞