IT1236817B - LASER RADIATION ATTENUATION OPTICAL FILTER - Google Patents

LASER RADIATION ATTENUATION OPTICAL FILTER

Info

Publication number
IT1236817B
IT1236817B IT02248889A IT2248889A IT1236817B IT 1236817 B IT1236817 B IT 1236817B IT 02248889 A IT02248889 A IT 02248889A IT 2248889 A IT2248889 A IT 2248889A IT 1236817 B IT1236817 B IT 1236817B
Authority
IT
Italy
Prior art keywords
optical filter
laser radiation
radiation attenuation
attenuation optical
laser
Prior art date
Application number
IT02248889A
Other languages
Italian (it)
Other versions
IT8922488A0 (en
IT8922488A1 (en
Inventor
Robert A Sallavanti
Original Assignee
Gentex Corp
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 Gentex Corp filed Critical Gentex Corp
Publication of IT8922488A0 publication Critical patent/IT8922488A0/en
Publication of IT8922488A1 publication Critical patent/IT8922488A1/en
Application granted granted Critical
Publication of IT1236817B publication Critical patent/IT1236817B/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Filters (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Lasers (AREA)
  • Laser Surgery Devices (AREA)
IT02248889A 1988-11-25 1989-11-23 LASER RADIATION ATTENUATION OPTICAL FILTER IT1236817B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27593388A 1988-11-25 1988-11-25

Publications (3)

Publication Number Publication Date
IT8922488A0 IT8922488A0 (en) 1989-11-23
IT8922488A1 IT8922488A1 (en) 1991-05-23
IT1236817B true IT1236817B (en) 1993-04-02

Family

ID=23054422

Family Applications (1)

Application Number Title Priority Date Filing Date
IT02248889A IT1236817B (en) 1988-11-25 1989-11-23 LASER RADIATION ATTENUATION OPTICAL FILTER

Country Status (6)

Country Link
JP (1) JPH02199405A (en)
CA (1) CA2001829C (en)
DE (1) DE3938688C2 (en)
FR (1) FR2640053B1 (en)
GB (1) GB2225445B (en)
IT (1) IT1236817B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4933110A (en) * 1988-12-28 1990-06-12 American Cyanamid Company Optical radiation shield for protection from multiple lasers
GB9210952D0 (en) * 1992-05-22 1992-07-08 Pilkington Plc Optical filter
DE102004055655B4 (en) * 2004-11-15 2006-07-27 Carl Zeiss Ag Laser protection system for an optical observation device, comprises a casting polymer matrix filter for absorbing laser radiation, which is brought in before to the objective of the observation device in the radiation detection bands
TWI629517B (en) 2013-12-20 2018-07-11 德商首德公司 Optical filter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3687863A (en) * 1970-05-25 1972-08-29 Gen Telephone & Elect Optical filters containing tetraphenyl-porphins and method of making same
US4622174A (en) * 1984-06-05 1986-11-11 Barnes Engineering Company Transparent protective laser shield
US4657345A (en) * 1985-03-11 1987-04-14 Barnes Engineering Company Laser shield and method of making same
US4885114A (en) * 1987-04-22 1989-12-05 Barnes Engineering Co. Metallized tetra((meso)-5-methyl-2-thiophene)porphines, platinum (5-bromo octaethylporphine) and optical filters containing same

Also Published As

Publication number Publication date
DE3938688C2 (en) 1999-03-25
IT8922488A0 (en) 1989-11-23
FR2640053B1 (en) 1993-12-31
GB8924481D0 (en) 1989-12-20
CA2001829A1 (en) 1990-05-25
FR2640053A1 (en) 1990-06-08
DE3938688A1 (en) 1990-05-31
GB2225445A (en) 1990-05-30
CA2001829C (en) 2000-04-11
JPH02199405A (en) 1990-08-07
GB2225445B (en) 1992-12-23
IT8922488A1 (en) 1991-05-23

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971125