phototransistorn.

Brit.

/ˌfəʊtə(ʊ)tranˈzɪstə/,

/ˌfəʊtə(ʊ)trɑːnˈzɪstə/,

/ˌfəʊtə(ʊ)tranˈsɪstə/,

/ˌfəʊtə(ʊ)trɑːnˈsɪstə/, U.S.

/ˈˌfoʊdoʊˌtrænˈzɪstər/

Origin: Formed within English, by compounding. Etymons: photo- comb. form, transistor n.

Etymology: < photo- comb. form + transistor n.

Electronics.

A junction transistor which generates and amplifies an electric current in response to incident light.

ΘΚΠ

the world > matter > physics > solid state physics > semiconductivity > transistor > [noun]

transistor1948

junction transistor1949

phototransistor1950

power transistor1957

1950 J. N. Shive in Bell Lab. Rec. 28 337/2 Experiments have resulted in the production of a new photoconductivity cell, called the ‘Phototransistor’.

1962 P. M. Williams in G. A. T. Burdett Automatic Control Handbk. ix. 52 Photo~transistors can be made which are sensitive to X-rays, ultra violet and infra red.

1970 New Scientist 24 Dec. 554/1 The new reading head is only a few centimetres across and contains a matrix of 144 bipolar photo~transistors on a silicon chip.

1991 Personal Computer World Feb. 135/3 As the wheels turn, light passes through the slots and the emissions are picked up by a phototransistor.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	phototransistor
释义	phototransistorn. Brit. /ˌfəʊtə(ʊ)tranˈzɪstə/, /ˌfəʊtə(ʊ)trɑːnˈzɪstə/, /ˌfəʊtə(ʊ)tranˈsɪstə/, /ˌfəʊtə(ʊ)trɑːnˈsɪstə/, U.S. /ˈˌfoʊdoʊˌtrænˈzɪstər/ Origin: Formed within English, by compounding. Etymons: photo- comb. form, transistor n. Etymology: < photo- comb. form + transistor n. Electronics. A junction transistor which generates and amplifies an electric current in response to incident light. ΘΚΠ the world > matter > physics > solid state physics > semiconductivity > transistor > [noun] transistor1948 junction transistor1949 phototransistor1950 power transistor1957 1950 J. N. Shive in Bell Lab. Rec. 28 337/2 Experiments have resulted in the production of a new photoconductivity cell, called the ‘Phototransistor’. 1962 P. M. Williams in G. A. T. Burdett Automatic Control Handbk. ix. 52 Photo~transistors can be made which are sensitive to X-rays, ultra violet and infra red. 1970 New Scientist 24 Dec. 554/1 The new reading head is only a few centimetres across and contains a matrix of 144 bipolar photo~transistors on a silicon chip. 1991 Personal Computer World Feb. 135/3 As the wheels turn, light passes through the slots and the emissions are picked up by a phototransistor. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1950
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