A photocathode in which the photocathode plate can be securely fixed without using any adhesive.
Disclosed is a photocathode having improved properties.
In another embodiment, the active emission area of the photocathode is predefined by surface modification of the photocathode.
In one embodiment, the active emission area of the photocathode is defined by the light beam that is incident on the photocathode.
Photocathode area of greater than 20 cm2; and
Television camera tubes, image converters and intensifiers and other photo-cathode tubes
A photomultiplier having a structure of ensuring a stable conduction between a convergent electrode and a photo-cathode and enabling the confirmation of a conduction state between the convergent electrode and the photo-cathode.
Television camera tubes, image converters and intensifiers and other photo-cathode tubes
Photons (308) of an image impinge a photo-cathode (306) that converts the photons to electrons.
Receiver or amplifier valves and tubes (excl. microwave tubes, photo-cathode tubes and cathode-ray tubes
Photocathode area of greater than 20 cm2; and
Photocathode area of greater than 20 cm2; and
a. Photocathode area of greater than 20 cm2; and
These two subsystems are coupled by a photoemission cathode.
Thereby during a first period of the cycles of the alternating electric field the photoelectrons emitted by the photocathode traverse the space between the photocathode and the channel plate.
Framing tubes and solid-state imaging devices for use with cameras specified in 6A203.b.3., as follows
Proximity focused image intensifier tubes having the photocathode deposited on a transparent conductive coating to decrease photocathode sheet resistance
photocathode area of greater than 20 cm2; and
a. Proximity focused image intensifier tubes having the photocathode deposited on a transparent conductive coating to decrease photocathode sheet resistance
In one embodiment, a photocathode device is provided that has an array of corner cubes fabricated in a surface of the photocathode.
The invention also relates to a vacuum tube using such a photo cathode.
The present invention concerns a device with a photocathode and semiconductor detector, wherein both the photocathode and the semiconductor are segmented.
Proximity focused image intensifier tubes having the photocathode deposited on a transparent conductive coating to decrease photocathode sheet resistance
An improved photocathode (12) and image intensifier tube (10) are disclosed along with a method for making both the tube (10) and photocathode (12).
The photodetector comprises a photocathode (26), an anode (28), and a reflecting surface (28A).
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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