dioptricadj.n.

Brit.

/dʌɪˈɒptrɪk/, U.S.

/daɪˈɑptrɪk/

Etymology: modern < Greek διοπτρικός of or pertaining to the use of the δίοπτρα (diopter n.); in neuter plural διοπτρικά as noun, the science of dioptrics. See -ic suffix.

A. adj.

†1. Of the nature of, or pertaining to, a diopter n. 1. Obsolete.

ΘΚΠ

the world > the earth > earth sciences > geography > map-making > surveying > [adjective] > of instruments for surveying > relating to specific instruments

dioptricala1613

dioptric1625

pertical1625

tacheometric1900

tachymetric1900

1625 N. Carpenter Geogr. Delineated i. v. 107 Two signes of the Zodiack diametrally opposite, should not be seene by a Dioptricke instrument.

1681 Table of Hard Words in S. Pordage tr. T. Willis Remaining Med. Wks. Dioptric, belonging to the perspective, or a mathematical instrument, thorow which they look to take the height of a thing.

2. Serving as a medium for sight; assisting vision (or rendering it possible) by means of refraction (as a lens, the humours of the eye).

ΘΚΠ

the world > physical sensation > sight and vision > optical instruments > instruments to refract, etc., light > [adjective] > refractor

dioptral1610

dioptric1653

dioptic1656

dioptrical1664

refracting1747

dioptical1818

1653 H. More Antidote against Atheism in Coll. Philos. Writings (1712) ii. xii. 84 To view the Asperities of the Moon through a Dioptrick-glass.

1660 H. More Explan. Grand Myst. Godliness ii. iii. 36 None of the external Organs have any Sense at all in them, no more then an Acousticon or a Dioptrick glass.

1858 J. Martineau Stud. Christianity 186 A dead mechanism..ready to serve as the dioptric glass, spreading the images of light from the Infinite on the tender and living retina.

1876 T. Bryant Pract. Surg. (ed. 2) I. viii. 294 The refraction is said to be normal or abnormal, according to the position of the retina with regard to the focus of the dioptric system.

3. Relating to the refraction of light; pertaining to dioptrics (see B. 3); esp. (of a telescope, etc.), refractive, refracting. (Opposed to catoptric adj. and n.) dioptric system, in lighthouses, also called refracting system: see quot. 1879.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > light > refraction > [adjective]

refractious1633

refractive1642

refracting1644

refringent1654

dioptric1672

refractory1788

anaclastic1796

refractile1797

prismy1799

diaclastic1883

Brewsterian1942

1672 I. Newton in Philos. Trans. (Royal Soc.) 7 5086 For Dioptrique Telescopes..the difficulty consisted not in the Figure of the glass, but in the Difformity of Refractions.

1688 R. Holme Acad. Armory iii. 146/2 The..Dioptrick, or broken sight, is rightly seen in a Tub of Water where the Surface is cut.

1754 Philos. Trans. 1753 (Royal Soc.) 48 167 Our common telescopes whether dioptric or reflecting.

1871 J. Tyndall Fragm. Sci. (1879) II. xvi. 436 The light was developed in the focus of a dioptric apparatus.

1879 Cassell's Techn. Educator (new ed.) IV. 75 The Dioptric arrangement is that in which the rays issuing from the flame are collected and refracted in a given direction by a lens placed in front of the light.

†4. Capable of being seen through: see quot.

ΘΚΠ

the world > matter > light > transparency or translucence > [adjective]

shireOE

brightOE

through-shineOE

cleanc1040

cleara1400

transparent1413

crystalc1425

crystallinec1425

crystal-clear?a1439

pure1481

perspicuatea1500

beryl1508

through-shining1526

diaphane1561

thorough-seeable1562

pellucid1563

sheer1565

translucent1568

liquid1590

tralucent?1592

perspicuous1599

thorough light1601

diaphanic1614

diaphanous1614

perspicable1615

translucid1615

diaphanal1616

lucid1620

diaphaned1626

transpicuous1638

perlucid1647

dioptrical1760

dioptric1801

unconcealing1804

see-through1851

pellucent1886

pool-clear1924

1801 Farmer's Mag. 2 48 As to dioptric beehives [i.e. provided with glass windows on opposite sides] the best I have seen is of wood.

1860 J. P. Kennedy Mem. W. Wirt II. xiii. 220 These few fragments..give us..glimpses into that ‘dioptric bee hive’, the heart of the writer.

B. n.

1. = diopter n. 1.

ΘΚΠ

the world > the earth > earth sciences > geography > map-making > surveying > [noun] > surveying instruments > for measuring angles

theodolite?a1560

topographical instrument?a1560

plain table1607

circumferentor1610

diopter1613

plane table1670

circumferencera1687

graphometer1696

semicircle1701

transit theodolite1824

dioptric1849

planchette1858

theodolite-goniometer1909

gyro-theodolite1950

1849 E. C. Otté tr. A. von Humboldt Cosmos II. 545 The Alexandrian astronomers..possessed..solstitial armils, and linear dioptrics.

2. A unit for expressing the refractive power of a lens, being the power of a lens whose focal distance is one metre.

ΚΠ

1883 New Sydenham Soc. Lexicon One dioptric, which is written 1 D, is a glass of one meter, or 39·37 inches, focal distance.

1887 A. Bruce in Encycl. Brit. XXII. 373.

3. plural dioptrics n. that part of the science of Optics which treats of the refraction of light. (Opposed to catoptrics n.)

ΘΚΠ

the world > matter > physics > electromagnetic radiation > light > refraction > [noun] > study of

dioptrics1644

dioptic1665

catadioptrics1755

geometrical optics1835

1644 K. Digby Two Treat. i. xiii. 106 The demonstration..Renatus Des Cartes hath excellently sett downe in his booke of Dioptrikes.

1668 Philos. Trans. 1667 (Royal Soc.) 2 626 The Dioptricks, that consider Rays Refracted.

1719 J. Chamberlayne tr. B. Nieuwentyt Relig. Philosopher II. xxii. xli. 680 One that is well versed in Dioptricks, and understands the Nature of Vision.

1831 D. Brewster Treat. Optics Introd. 3 Light..through transparent bodies is transmitted according to particular laws, the consideration of which constitutes the subject of dioptrics.

This entry has not yet been fully updated (first published 1896; most recently modified version published online March 2022).

单词	dioptric
释义	dioptricadj.n. Brit. /dʌɪˈɒptrɪk/, U.S. /daɪˈɑptrɪk/ Etymology: modern < Greek διοπτρικός of or pertaining to the use of the δίοπτρα (diopter n.); in neuter plural διοπτρικά as noun, the science of dioptrics. See -ic suffix. A. adj. †1. Of the nature of, or pertaining to, a diopter n. 1. Obsolete. ΘΚΠ the world > the earth > earth sciences > geography > map-making > surveying > [adjective] > of instruments for surveying > relating to specific instruments dioptricala1613 dioptric1625 pertical1625 tacheometric1900 tachymetric1900 1625 N. Carpenter Geogr. Delineated i. v. 107 Two signes of the Zodiack diametrally opposite, should not be seene by a Dioptricke instrument. 1681 Table of Hard Words in S. Pordage tr. T. Willis Remaining Med. Wks. Dioptric, belonging to the perspective, or a mathematical instrument, thorow which they look to take the height of a thing. 2. Serving as a medium for sight; assisting vision (or rendering it possible) by means of refraction (as a lens, the humours of the eye). ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instruments to refract, etc., light > [adjective] > refractor dioptral1610 dioptric1653 dioptic1656 dioptrical1664 refracting1747 dioptical1818 1653 H. More Antidote against Atheism in Coll. Philos. Writings (1712) ii. xii. 84 To view the Asperities of the Moon through a Dioptrick-glass. 1660 H. More Explan. Grand Myst. Godliness ii. iii. 36 None of the external Organs have any Sense at all in them, no more then an Acousticon or a Dioptrick glass. 1858 J. Martineau Stud. Christianity 186 A dead mechanism..ready to serve as the dioptric glass, spreading the images of light from the Infinite on the tender and living retina. 1876 T. Bryant Pract. Surg. (ed. 2) I. viii. 294 The refraction is said to be normal or abnormal, according to the position of the retina with regard to the focus of the dioptric system. 3. Relating to the refraction of light; pertaining to dioptrics (see B. 3); esp. (of a telescope, etc.), refractive, refracting. (Opposed to catoptric adj. and n.) dioptric system, in lighthouses, also called refracting system: see quot. 1879. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > refraction > [adjective] refractious1633 refractive1642 refracting1644 refringent1654 dioptric1672 refractory1788 anaclastic1796 refractile1797 prismy1799 diaclastic1883 Brewsterian1942 1672 I. Newton in Philos. Trans. (Royal Soc.) 7 5086 For Dioptrique Telescopes..the difficulty consisted not in the Figure of the glass, but in the Difformity of Refractions. 1688 R. Holme Acad. Armory iii. 146/2 The..Dioptrick, or broken sight, is rightly seen in a Tub of Water where the Surface is cut. 1754 Philos. Trans. 1753 (Royal Soc.) 48 167 Our common telescopes whether dioptric or reflecting. 1871 J. Tyndall Fragm. Sci. (1879) II. xvi. 436 The light was developed in the focus of a dioptric apparatus. 1879 Cassell's Techn. Educator (new ed.) IV. 75 The Dioptric arrangement is that in which the rays issuing from the flame are collected and refracted in a given direction by a lens placed in front of the light. †4. Capable of being seen through: see quot. ΘΚΠ the world > matter > light > transparency or translucence > [adjective] shireOE brightOE through-shineOE cleanc1040 cleara1400 transparent1413 crystalc1425 crystallinec1425 crystal-clear?a1439 pure1481 perspicuatea1500 beryl1508 through-shining1526 diaphane1561 thorough-seeable1562 pellucid1563 sheer1565 translucent1568 liquid1590 tralucent?1592 perspicuous1599 thorough light1601 diaphanic1614 diaphanous1614 perspicable1615 translucid1615 diaphanal1616 lucid1620 diaphaned1626 transpicuous1638 perlucid1647 dioptrical1760 dioptric1801 unconcealing1804 see-through1851 pellucent1886 pool-clear1924 1801 Farmer's Mag. 2 48 As to dioptric beehives [i.e. provided with glass windows on opposite sides] the best I have seen is of wood. 1860 J. P. Kennedy Mem. W. Wirt II. xiii. 220 These few fragments..give us..glimpses into that ‘dioptric bee hive’, the heart of the writer. B. n. 1. = diopter n. 1. ΘΚΠ the world > the earth > earth sciences > geography > map-making > surveying > [noun] > surveying instruments > for measuring angles theodolite?a1560 topographical instrument?a1560 plain table1607 circumferentor1610 diopter1613 plane table1670 circumferencera1687 graphometer1696 semicircle1701 transit theodolite1824 dioptric1849 planchette1858 theodolite-goniometer1909 gyro-theodolite1950 1849 E. C. Otté tr. A. von Humboldt Cosmos II. 545 The Alexandrian astronomers..possessed..solstitial armils, and linear dioptrics. 2. A unit for expressing the refractive power of a lens, being the power of a lens whose focal distance is one metre. ΚΠ 1883 New Sydenham Soc. Lexicon One dioptric, which is written 1 D, is a glass of one meter, or 39·37 inches, focal distance. 1887 A. Bruce in Encycl. Brit. XXII. 373. 3. plural dioptrics n. that part of the science of Optics which treats of the refraction of light. (Opposed to catoptrics n.) ΘΚΠ the world > matter > physics > electromagnetic radiation > light > refraction > [noun] > study of dioptrics1644 dioptic1665 catadioptrics1755 geometrical optics1835 1644 K. Digby Two Treat. i. xiii. 106 The demonstration..Renatus Des Cartes hath excellently sett downe in his booke of Dioptrikes. 1668 Philos. Trans. 1667 (Royal Soc.) 2 626 The Dioptricks, that consider Rays Refracted. 1719 J. Chamberlayne tr. B. Nieuwentyt Relig. Philosopher II. xxii. xli. 680 One that is well versed in Dioptricks, and understands the Nature of Vision. 1831 D. Brewster Treat. Optics Introd. 3 Light..through transparent bodies is transmitted according to particular laws, the consideration of which constitutes the subject of dioptrics. This entry has not yet been fully updated (first published 1896; most recently modified version published online March 2022). < adj.n.1625
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