Image intensifier employing channel multiplier plate专利检索-倍增极电子零件及设备专利检索查询-专利查询网

Image intensifier employing channel multiplier plate

阅读：49发布：2023-03-30

专利汇可以提供Image intensifier employing channel multiplier plate专利检索，专利查询，专利分析的服务。并且A photocathode in response to an incident light image develops a corresponding electron image which is accelerated and focused upon the input of a channel multiplier plate. The input of that plate is covered with a layer of a material having the property of transmission secondary electron multiplication, hereafter referred to as TSEM. Secondary electrons developed in that material in response to the incident electron image enter the channel multiplier where they are further multiplied and, finally, are focused on a phosphor screen where conversion to a light image takes place.，下面是Image intensifier employing channel multiplier plate专利的具体信息内容。

权利要求

1. An image intensifier comprising: an envelope; means including a cathode structure supported within said envelope at one end thereof for developing an electron image; a planar transmission secondary electron multiplication device disposed transversely of a reference axis of said envelope and responsive to incident electrons having a velocity of at least a predetermined minimum value to emit secondary electrons with a velocity distribution in a range of values but predominantly of values substantially less than said predetermined minimum value; an electron optical system for accelerating the electrons of said image to at least said predetermined minimum velocity and for focusing said electrons on said device; a channel multiplier plate for developing further secondary electrons, exhibiting optimum response to incident electrons having a velocity within a range which includes said predominant values and which has a maximum value that is substantially less than said predetermined minimum value, said multiplier plate being of essentially the same size as said device and being disposed adjacent thereto to receive secondary electrons emitted by said device; and a target electrode disposed in spaced relation to said multiplier plate and having a potential level with respect thereto for proximity focusing thereon said further secondary electrons emitted by said plate.

2. An image intensifier in accordance with claim 1 in which said transmission secondary electron multiplication device is attached to the input end of said channel multiplier plate and closes the entrance to the channels of said plate.

3. An image intensifier in accordance with claim 2 in which said means for developing an electron image comprises a photocathode, said target electrode comprises a phosphor screen for developing a visible image in response to said further secondary electrons; and said device is opaque and constitutes a barrier for preventing light feedback from said phosphor screen to said photocathode.

4. An image intensifier in accordance with claim 3 in which said device is a layer of a material having transmission secondary electron multiplication properties bonded to the input end of said channel multiplier plate.

5. An image intensifier in accordance with claim 4 in which said material is an insulator.

6. An image intensifier in accordance with claim 3 in which said phosphor screen comprises a coating of phosphor material deposited on a conductive transparent substrate and exposed directly to the output of said plate without an intervening electron permeable conductive layer.

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Image intensifier employing channel multiplier plate

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