Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Patent
1993-02-12
1994-11-29
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
2502081, 257428, 257443, 21912167, G01T 124
Patent
active
053692810
ABSTRACT:
The invention is applicable to matrix detector or display screens formed by assembling several elementary screens. A matrix screen according to the invention comprises several elementary screens (E1 to E4) spliced together on one of their edges (10, 11). According to the invention, each elementary screen (E1 to E4) includes a mechanical stop device (B1 to B4) which mates with a mechanical stop device on an elementary screen to which it is spliced so that the two elementary screens are positioned relative to each other. This arrangement avoids long and difficult alignment and indexing during the assembly of the elementary screens (E1 to E4) since these operations are completed when the elementary screens are cut, this operation itself requiring the use of accurate alignment and indexing tools.
REFERENCES:
patent: 3453097 (1969-07-01), Hafner
patent: 3594761 (1971-07-01), Boesen
patent: 4695716 (1987-09-01), Tandon et al.
patent: 4860075 (1989-08-01), Araghi et al.
patent: 5105087 (1992-04-01), Jagielinski
patent: 5214261 (1993-05-01), Zappella
Arques Marc
Spinnler Vincent
Fields Carolyn E.
Plottel Roland
Thomson Tubes Electroniques
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