Vacuum tube for amplifier circuit, and amplifier circuit using same
AssigneeHamamatsu Photonics K.K.
InventorsHiroshige Mori, Yasuaki Maekawa, Masayuki Sato
Life of this patent
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Abstract
A vacuum tube for amplifier circuit includes: a light incidence window that transmits signal light; a photoelectric conversion unit that converts the signal light transmitted through the light incidence window into photoelectrons; an output unit that has an anode, on which the photoelectrons are incident, and outputs a signal corresponding to the incident photoelectrons; and a grid electrode that is disposed in a path of the photoelectrons from the photoelectric conversion unit to the anode and controls the amount of photoelectrons incident on the anode.
Claims19
A vacuum tube for amplifier circuit, the amplifier circuit configured to receive a signal input to generate an amplification signal, the vacuum tube comprising:
- an incidence window portion configured to transmit signal light;
- a photoelectric conversion unit configured to convert the signal light transmitted through the incidence window portion into photoelectrons;
- an output unit configured to have an anode, on which the photoelectrons are incident, and output a signal associated with the amplification signal, and the signal corresponding to the photoelectrons incident on the anode;
- and
- a grid electrode configured to be disposed in a path of the photoelectrons from the photoelectric conversion unit to the anode and control an amount of the photoelectrons incident on the anode based on the signal input.
A vacuum tube for amplifier circuit, comprising:
- an incidence window portion configured to transmit signal light;
- a photoelectric conversion unit configured to convert the signal light transmitted through the incidence window portion into photoelectrons;
- an output unit configured to have an anode, on which the photoelectrons are incident, and output a signal corresponding to the incident photoelectrons;
- and
- a grid electrode configured to be disposed in a path of the photoelectrons from the photoelectric conversion unit to the anode and control an amount of the photoelectrons incident on the anode,
- wherein a separation distance between a photoelectric surface of the photoelectric conversion unit and the grid electrode is shorter than a separation distance between the grid electrode and the anode, and the photoelectric surface and the grid electrode are disposed so as to face each other in parallel, and
- wherein the photoelectric conversion unit has a transmission type photoelectric surface.
A vacuum tube for amplifier circuit, comprising:
- an incidence window portion configured to transmit signal light;
- a photoelectric conversion unit configured to convert the signal light transmitted through the incidence window portion into photoelectrons, wherein the photoelectric conversion unit has a reflection type photoelectric surface;
- an output unit configured to have an anode, on which the photoelectrons are incident, and output a signal corresponding to the incident photoelectrons;
- a grid electrode configured to be disposed in a path of the photoelectrons from the photoelectric conversion unit to the anode and control an amount of the photoelectrons incident on the anode;
- a housing unit formed of a conductive material for fixing the incidence window portion;
- and
- a light transmissive electrode configured to be provided between the incidence window portion and the photoelectric conversion unit and be electrically connected to the housing unit,
- wherein the anode is formed by the housing unit and the light transmissive electrode.
A vacuum tube for amplifier circuit, comprising:
- an incidence window portion configured to transmit signal light;
- a photoelectric conversion unit configured to convert the signal light transmitted through the incidence window portion into photoelectrons;
- an output unit configured to have an anode, on which the photoelectrons are incident, and output a signal corresponding to the incident photoelectrons;
- and
- a grid electrode configured to be disposed in a path of the photoelectrons from the photoelectric conversion unit to the anode and control an amount of the photoelectrons incident on the anode;
- a first substrate having the incidence window portion;
- and
- a second substrate facing the first substrate,
- wherein the photoelectric conversion unit is provided on the first substrate or the second substrate, and
- the anode and the grid electrode are provided so as to be erected between the first substrate and the second substrate.
Dependencies are inferred from the claim text.