公开(公告)号：US3578972A

公开(公告)日：1971-05-18

申请号：US3578972D

申请日：1969-03-06

Applicant: AMERICAN ATOMICS CORP

Inventor： DOOLEY HARRY H ,  DODA ROBERT J ,  MAHON ARTHUR F

IPC: G21H3/02 ,  H01J65/08 ,  F21K2/02

CPC classification number: G21H3/02 ,  H01J65/08

Abstract: A radiation-excited light source having a beta-emitting radioisotope within a sealed tube. Illumination is provided by the impingement of betas upon phosphor material within the tube. ''''Fiber optic'''' light transmission media are affixed longitudinally along the exterior of the tube and feed light to a plurality of display locations. In one embodiment a thin layer of phosphor is coated over the entire inner surface of the tube. In another embodiment a thicker layer of phosphor is coated to a metal shell positioned within the tube.

公开(公告)号：US3566125A

公开(公告)日：1971-02-23

申请号：US3566125D

申请日：1968-07-19

Applicant: AMERICAN ATOMICS CORP

Inventor： LINHART THEO F JR ,  DODA ROBERT J ,  MAHON ARTHUR F

IPC: H01J65/08 ,  G21H3/02

CPC classification number: H01J65/08

Abstract: A radiation excited self-luminous light source in which luminescence is provided by the impingement of beta emissions upon a phosphor within the source. A gastight chamber within the source is bounded by a concave phosphor surface and by radiationresistant window. The concave surface is of a predetermined shape designed to maximize the efficiency of the source. In addition, the gastight chamber is designed to withstand pressures of up to 15 atmospheres, thereby enabling gaseous radioisotopes of greater activity to be utilized as the source of beta emissions. In one embodiment, greater efficiency is achieved by utilizing a window having a convex surface which corresponds to the concave phosphor surface and which is positioned a predetermined distance from the phosphor surface equal to the average range of beta emissions within the chamber.

公开(公告)号：US3578973A

公开(公告)日：1971-05-18

申请号：US3578973D

申请日：1969-03-06

Applicant: AMERICAN ATOMICS CORP

Inventor： DOOLEY HARRY H ,  DODA ROBERT J ,  MAHON ARTHUR F

IPC: B60Q3/04 ,  F21V8/00 ,  G02B6/42 ,  G09F9/305 ,  G21G4/04 ,  H01J65/06 ,  G01N23/00

CPC classification number: G02B6/421 ,  B60Q3/14 ,  B60Q3/66 ,  G02B6/0008 ,  G02B6/4249 ,  G02B6/4298 ,  G09F9/305 ,  G21G4/04 ,  H01J65/06

Abstract: A self-luminous light source in which ''''fiber optic'''' light transmission media are utilized to transmit light from a radiation-excited light source to one or more light display locations at predetermined distances from the radiation-excited source. In one embodiment the radioactive material within the source is completely surrounded by radiation shielding material such as lead and the ''''fiber optic'''' media follow a curved path within the shield. Other embodiments include apparatus for selectively presenting light of various colors and intensities to the input ends of the ''''fiber optic'''' light transmission media.

公开(公告)号：US3491246A

公开(公告)日：1970-01-20

申请号：US3491246D

申请日：1966-12-05

Applicant: AMERICAN ATOMICS CORP

Inventor： DOOLEY HARRY H ,  DODA ROBERT J ,  MAHON ARTHUR F

IPC: G01L9/00 ,  G01D5/34

CPC classification number: G01L9/0007