GB2187857B - A method of measuring stray light in a reproduction camera - Google Patents

A method of measuring stray light in a reproduction camera

Info

Publication number
GB2187857B
GB2187857B GB8705518A GB8705518A GB2187857B GB 2187857 B GB2187857 B GB 2187857B GB 8705518 A GB8705518 A GB 8705518A GB 8705518 A GB8705518 A GB 8705518A GB 2187857 B GB2187857 B GB 2187857B
Authority
GB
United Kingdom
Prior art keywords
stray light
reproduction camera
measuring stray
measuring
reproduction
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB8705518A
Other languages
English (en)
Other versions
GB2187857A (en
GB8705518D0 (en
Inventor
Finn Hougaard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eskofot AS
Original Assignee
Eskofot AS
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 Eskofot AS filed Critical Eskofot AS
Publication of GB8705518D0 publication Critical patent/GB8705518D0/en
Publication of GB2187857A publication Critical patent/GB2187857A/en
Application granted granted Critical
Publication of GB2187857B publication Critical patent/GB2187857B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/323—Copying cameras
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/74—Positioning exposure meters in the apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Lenses (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Projection-Type Copiers In General (AREA)
GB8705518A 1986-03-12 1987-03-09 A method of measuring stray light in a reproduction camera Expired GB2187857B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK114686A DK157717C (da) 1986-03-12 1986-03-12 Fremgangsmaade til maaling af stroelys

Publications (3)

Publication Number Publication Date
GB8705518D0 GB8705518D0 (en) 1987-04-15
GB2187857A GB2187857A (en) 1987-09-16
GB2187857B true GB2187857B (en) 1989-12-20

Family

ID=8101527

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8705518A Expired GB2187857B (en) 1986-03-12 1987-03-09 A method of measuring stray light in a reproduction camera

Country Status (5)

Country Link
JP (1) JPS62217232A (da)
DE (1) DE3705723A1 (da)
DK (1) DK157717C (da)
GB (1) GB2187857B (da)
NL (1) NL8700433A (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102944533B (zh) * 2012-11-26 2014-11-19 中国科学院长春光学精密机械与物理研究所 一种便携式中心遮拦结构杂散光检测装置
CN106770329A (zh) * 2017-01-09 2017-05-31 中国工程物理研究院机械制造工艺研究所 一种检测透明材料表面和内部缺陷的暗场显微成像装置

Also Published As

Publication number Publication date
NL8700433A (nl) 1987-10-01
DK157717B (da) 1990-02-05
DK157717C (da) 1990-06-25
DK114686A (da) 1987-09-13
JPS62217232A (ja) 1987-09-24
GB2187857A (en) 1987-09-16
DE3705723A1 (de) 1987-09-17
DK114686D0 (da) 1986-03-12
GB8705518D0 (en) 1987-04-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930309