GB2520707B - Lens cap - Google Patents

Lens cap

Info

Publication number
GB2520707B
GB2520707B GB1320979.6A GB201320979A GB2520707B GB 2520707 B GB2520707 B GB 2520707B GB 201320979 A GB201320979 A GB 201320979A GB 2520707 B GB2520707 B GB 2520707B
Authority
GB
United Kingdom
Prior art keywords
lens cap
lens
cap
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 - Fee Related
Application number
GB1320979.6A
Other versions
GB2520707A (en
GB201320979D0 (en
Inventor
Chung Jen Chang
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1320979.6A priority Critical patent/GB2520707B/en
Publication of GB201320979D0 publication Critical patent/GB201320979D0/en
Publication of GB2520707A publication Critical patent/GB2520707A/en
Application granted granted Critical
Publication of GB2520707B publication Critical patent/GB2520707B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G03B11/00—Filters or other obturators specially adapted for photographic purposes
    • G03B11/04—Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids
    • G03B11/041—Lens caps as separate accessory
    • 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
    • G03B11/00—Filters or other obturators specially adapted for photographic purposes
    • G03B11/04—Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids
    • G03B11/045—Lens hoods or shields

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
GB1320979.6A 2013-11-28 2013-11-28 Lens cap Expired - Fee Related GB2520707B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1320979.6A GB2520707B (en) 2013-11-28 2013-11-28 Lens cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1320979.6A GB2520707B (en) 2013-11-28 2013-11-28 Lens cap

Publications (3)

Publication Number Publication Date
GB201320979D0 GB201320979D0 (en) 2014-01-15
GB2520707A GB2520707A (en) 2015-06-03
GB2520707B true GB2520707B (en) 2015-12-02

Family

ID=49979442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1320979.6A Expired - Fee Related GB2520707B (en) 2013-11-28 2013-11-28 Lens cap

Country Status (1)

Country Link
GB (1) GB2520707B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107422574B (en) * 2017-08-31 2019-11-12 中国科学院光电技术研究所 Automatic lens cover structure of large-diameter lens

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123368A1 (en) * 1981-06-12 1983-03-03 George Henry 44240 Kent Ohio Frost Combined lens cover and lens hood system for a camera
US8280241B1 (en) * 2011-04-08 2012-10-02 Chung Jen Chang Combination of cover with hood
GB2498703A (en) * 2011-12-30 2013-07-31 Chung Jen Chang Lens cap and hood combination
GB2499952A (en) * 2009-03-09 2013-09-04 Apple Inc Port for coupling to power providing and non-power providing accessory cables

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123368A1 (en) * 1981-06-12 1983-03-03 George Henry 44240 Kent Ohio Frost Combined lens cover and lens hood system for a camera
GB2499952A (en) * 2009-03-09 2013-09-04 Apple Inc Port for coupling to power providing and non-power providing accessory cables
US8280241B1 (en) * 2011-04-08 2012-10-02 Chung Jen Chang Combination of cover with hood
GB2498703A (en) * 2011-12-30 2013-07-31 Chung Jen Chang Lens cap and hood combination

Also Published As

Publication number Publication date
GB2520707A (en) 2015-06-03
GB201320979D0 (en) 2014-01-15

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Legal Events

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

Effective date: 20171128