SE307023B - - Google Patents

Info

Publication number
SE307023B
SE307023B SE321/68A SE32168A SE307023B SE 307023 B SE307023 B SE 307023B SE 321/68 A SE321/68 A SE 321/68A SE 32168 A SE32168 A SE 32168A SE 307023 B SE307023 B SE 307023B
Authority
SE
Sweden
Prior art keywords
wall
photo
prism
section
jan
Prior art date
Application number
SE321/68A
Inventor
A Ohlsson
L Skagerlund
Original Assignee
Bofors Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bofors Ab filed Critical Bofors Ab
Priority to SE321/68A priority Critical patent/SE307023B/xx
Publication of SE307023B publication Critical patent/SE307023B/xx
Priority to US787953A priority patent/US3571602A/en
Priority to NO0048/69A priority patent/NO121227B/no
Priority to DE19691900637 priority patent/DE1900637A1/en
Priority to GB0141/69A priority patent/GB1235411A/en
Priority to FR6900229A priority patent/FR2000116A1/fr
Priority to CH27769A priority patent/CH486118A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/04—Electrodes
    • H01J40/06—Photo-emissive cathodes

Landscapes

  • Optical Elements Other Than Lenses (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

1,235,411. Photo-multipliers. BOFORS A.B. 8 Jan., 1969 [10 Jan., 1968], No. 1141/69. Heading H1D. [Also in Division G2] A photo-detector tube, e.g. a photo-multiplier, has a transparent plane wall 2, Fig. 1, a photoemissive coating 3 and a prism 4 of trapezoidal section attached to the central portion of the outer side of the wall 2. Both the light reflected by the side 8 directly into the wall 2 and the light reflected by the two walls 8 and 7 enter the wall at an angle of 45 degrees. The corner 6, 7 of the prism may be omitted. Fig. 3 shows a section through two prisms 4, 4a or a section through a single prism of rotationally symmetrical form. An integral or separate parallelepipedal extension or extensions 6, 7, 11, 12; 6a, 7a, 11a, 12 may be provided.
SE321/68A 1968-01-10 1968-01-10 SE307023B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE321/68A SE307023B (en) 1968-01-10 1968-01-10
US787953A US3571602A (en) 1968-01-10 1968-12-30 Optical system to reduce reflection losses in a photocell
NO0048/69A NO121227B (en) 1968-01-10 1969-01-06
DE19691900637 DE1900637A1 (en) 1968-01-10 1969-01-07 Photo receiver with a light-sensitive layer arranged behind a glass wall
GB0141/69A GB1235411A (en) 1968-01-10 1969-01-08 Photo detector system
FR6900229A FR2000116A1 (en) 1968-01-10 1969-01-09
CH27769A CH486118A (en) 1968-01-10 1969-01-10 Photoelectron multiplier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE321/68A SE307023B (en) 1968-01-10 1968-01-10

Publications (1)

Publication Number Publication Date
SE307023B true SE307023B (en) 1968-12-16

Family

ID=20256361

Family Applications (1)

Application Number Title Priority Date Filing Date
SE321/68A SE307023B (en) 1968-01-10 1968-01-10

Country Status (7)

Country Link
US (1) US3571602A (en)
CH (1) CH486118A (en)
DE (1) DE1900637A1 (en)
FR (1) FR2000116A1 (en)
GB (1) GB1235411A (en)
NO (1) NO121227B (en)
SE (1) SE307023B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69637562D1 (en) * 1995-03-20 2008-07-24 Fujitsu Ltd Method and device for optical signal processing
DE10062841B4 (en) * 2000-12-15 2009-04-16 Hilti Aktiengesellschaft Light beam receiver for laser positioning devices

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1240905A (en) * 1917-04-09 1917-09-25 F A Hardy & Company Binocular-magnifier.
US2119544A (en) * 1937-03-22 1938-06-07 Otto K Kaspereit Prism
US2954721A (en) * 1957-10-09 1960-10-04 Austin P Voelker Optical inspection instrument
US3424516A (en) * 1964-05-28 1969-01-28 Texas Instruments Inc Prism system comprising joined pentaprisms
US3415990A (en) * 1966-03-21 1968-12-10 Itt Invisible light sensor tube and faceplate material

Also Published As

Publication number Publication date
DE1900637A1 (en) 1969-09-04
NO121227B (en) 1971-02-01
GB1235411A (en) 1971-06-16
FR2000116A1 (en) 1969-08-29
US3571602A (en) 1971-03-23
CH486118A (en) 1970-02-15

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