Optical: systems and elements – Compound lens system – Telescope
Patent
1991-08-13
1993-05-18
Arnold, Bruce Y.
Optical: systems and elements
Compound lens system
Telescope
359428, 250214VT, 33241, G02B 2300, H01J 3150
Patent
active
052125904
ABSTRACT:
In a brightness intensifier tube there is provided, preferably in the exit screen or, in the case of a brightness intensifier comprising a channel plate intensifier, on an input electrode thereof, a fixed alignment marker, for example by local burning in of screen material by photoelectrons from the entrance screen which are liberated therefrom by irradiation by a laser beam. For tubes comprising a fixed entrance optical system the alignment marker is preferably provided by focused application of light via the optical system.
REFERENCES:
patent: 4021693 (1977-05-01), Bradley et al.
patent: 4087683 (1978-05-01), Lieb
patent: 4168429 (1979-09-01), Lough
patent: 4171480 (1979-10-01), Wulms
patent: 4245160 (1981-01-01), Harao
patent: 4286148 (1981-08-01), Kamps et al.
patent: 4417814 (1983-11-01), Doliber
patent: 4710875 (1987-12-01), Nakajima et al.
patent: 4721375 (1988-01-01), Van Dulmen
patent: 4743765 (1988-05-01), Ekstrand
patent: 4861977 (1989-08-01), De la Fonteijne
patent: 4877324 (1989-10-01), Hauri et al.
patent: 4924080 (1990-05-01), Caserta et al.
patent: 4978195 (1990-12-01), Takano et al.
Arnold Bruce Y.
Nguyen Thong
U.S. Philips Corp.
LandOfFree
Brightness intensifier tube with alignment marker does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Brightness intensifier tube with alignment marker, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brightness intensifier tube with alignment marker will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-807962