epi-illuminationn.

/ˌɛpɪɪˌl(j)uːmɪˈneɪʃən/

Etymology: < epi- prefix 1 + illumination n.

Microscopy.

Illumination of the object field of an optical microscope from the side of the field on which the object is viewed.

ΘΚΠ

the world > matter > light > illumination > [noun] > in a microscope

epi-illumination1967

1967 S. Bradbury Evol. of Microscope ii. 46 It is often more convenient to work at night, so Hooke devised the oil lamp and epi-illumination equipment shown attached to his microscope.

1975 Nature 3 Apr. 457/2 A CS100 W/2 lamp was used for epi-illumination through a 40/1.0 objective.

1985 Brit. Med. Jrnl. 14 Sept. 696/1 The..slides were..examined by fluorescent microscopy under epi-illumination.

Derivatives

ˌepi-iˈlluminator n. a light source providing epi-illumination.

ΘΚΠ

the world > matter > light > illumination > [noun] > in a microscope > light source providing

epi-illuminator1971

1958 G. H. Needham Pract. Use Microscope xxi. 343/2 Epilum Opaque Illuminator made by C. Reichart, Vienna.]

1971 Nature 4 June 327/1 The slides were examined under a Leitz ortholux microscope fitted with an HBO 200 mercury vapour light source and a ‘Ploem’ epi-illuminator.

1977 Nature 23 June 740/2 The POH-3 polarising microscope has..interchangeable eyepiece tubes, graduated, circular rotatable stage and epi-illuminator.

This entry has not yet been fully updated (first published 1993; most recently modified version published online March 2018).

单词	epi-illumination
释义	epi-illuminationn. /ˌɛpɪɪˌl(j)uːmɪˈneɪʃən/ Etymology: < epi- prefix 1 + illumination n. Microscopy. Illumination of the object field of an optical microscope from the side of the field on which the object is viewed. ΘΚΠ the world > matter > light > illumination > [noun] > in a microscope epi-illumination1967 1967 S. Bradbury Evol. of Microscope ii. 46 It is often more convenient to work at night, so Hooke devised the oil lamp and epi-illumination equipment shown attached to his microscope. 1975 Nature 3 Apr. 457/2 A CS100 W/2 lamp was used for epi-illumination through a 40/1.0 objective. 1985 Brit. Med. Jrnl. 14 Sept. 696/1 The..slides were..examined by fluorescent microscopy under epi-illumination. Derivatives ˌepi-iˈlluminator n. a light source providing epi-illumination. ΘΚΠ the world > matter > light > illumination > [noun] > in a microscope > light source providing epi-illuminator1971 1958 G. H. Needham Pract. Use Microscope xxi. 343/2 Epilum Opaque Illuminator made by C. Reichart, Vienna.] 1971 Nature 4 June 327/1 The slides were examined under a Leitz ortholux microscope fitted with an HBO 200 mercury vapour light source and a ‘Ploem’ epi-illuminator. 1977 Nature 23 June 740/2 The POH-3 polarising microscope has..interchangeable eyepiece tubes, graduated, circular rotatable stage and epi-illuminator. This entry has not yet been fully updated (first published 1993; most recently modified version published online March 2018). < n.1967
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