| 11. | He had a special bulb made with a metal plate sealed into the glass envelope.
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| 12. | Many HID lamps are designed to quickly extinguish if their outer UV-shielding glass envelope is broken.
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| 13. | Most tubes have glass envelopes, though ceramic and metal envelopes ( atop insulating bases ) have been used.
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| 14. | Another facet of the two pin design is that many new designs of lamps use baseless glass envelopes.
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| 15. | Capel Manor is a refinement of the'Miesian'box a glass envelope enclosing space with the lightest of touches.
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| 16. | The glass envelope in a halogen lamp can reach 1, 000 degrees, double the temperature in some ordinary lamps.
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| 17. | In the experiment a sample of radium was enclosed in a thin-walled glass envelope sited within an evacuated glass bulb.
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| 18. | The leads are taken out through the glass envelope and the whole device is put under vacuum and then sealed.
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| 19. | :Round screen CRTs are technically easier to build than rectangular-screen CRTs ( the mechanics of the glass envelope are simpler ).
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| 20. | The glass envelope is coated in a mixture of phosphors that are excited by the ultraviolet light and emit visible light.
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