HK89993A - Door viewer - Google Patents

Door viewer

Info

Publication number
HK89993A
HK89993A HK899/93A HK89993A HK89993A HK 89993 A HK89993 A HK 89993A HK 899/93 A HK899/93 A HK 899/93A HK 89993 A HK89993 A HK 89993A HK 89993 A HK89993 A HK 89993A
Authority
HK
Hong Kong
Prior art keywords
door viewer
viewer
door
Prior art date
Application number
HK899/93A
Other languages
English (en)
Inventor
Chul Hoon Ahn
Original Assignee
Seung Hee Han
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 Seung Hee Han filed Critical Seung Hee Han
Publication of HK89993A publication Critical patent/HK89993A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
    • E06B7/30—Peep-holes; Devices for speaking through; Doors having windows
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/04—Catoptric systems, e.g. image erecting and reversing system using prisms only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/04—Eyepieces; Magnifying glasses affording a wide-angle view, e.g. through a spy-hole
HK899/93A 1988-08-05 1993-09-02 Door viewer HK89993A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880010027A KR920001168B1 (ko) 1988-08-05 1988-08-05 실외 투시경

Publications (1)

Publication Number Publication Date
HK89993A true HK89993A (en) 1993-09-10

Family

ID=19276753

Family Applications (1)

Application Number Title Priority Date Filing Date
HK899/93A HK89993A (en) 1988-08-05 1993-09-02 Door viewer

Country Status (6)

Country Link
US (1) US4892399A (ko)
JP (1) JPH0274914A (ko)
KR (1) KR920001168B1 (ko)
DE (1) DE3835307A1 (ko)
GB (1) GB2221549B (ko)
HK (1) HK89993A (ko)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087991A (en) * 1990-11-13 1992-02-11 Internatural Designs, Inc. Multi-image viewer apparatus
US5138487A (en) * 1991-01-09 1992-08-11 Seung H. Han Door viewer
ES2050559B1 (es) * 1991-05-07 1995-11-01 Soo Choi Yung Mirilla de puerta.
US5550673A (en) * 1991-11-01 1996-08-27 Goldstein; Pinchas Spyhole viewer
IL107023A (en) * 1993-09-15 1997-02-18 Goldstein Pinchas Spyhole viewer
IL99941A (en) * 1991-11-01 1997-02-18 Goldstein Pinchas Spyhole viewer
JP3335235B2 (ja) * 1993-10-27 2002-10-15 旭光学工業株式会社 スコープ
JPH1169208A (ja) * 1997-08-21 1999-03-09 Kanagawa Chikudenchi Kk ピンホールビデオカメラ
US6779305B2 (en) 2002-04-29 2004-08-24 Shan E. Harter Door viewer plug
DE10256276B3 (de) * 2002-12-03 2004-08-05 Schott Glas Wandung eines Küchengerätes
GB2435994A (en) * 2006-03-08 2007-09-12 Cell Security Ltd A sight for a security door
GB0623893D0 (en) * 2006-11-30 2007-01-10 Popovich Milan M Wide angle display device
KR101026455B1 (ko) * 2008-08-14 2011-04-07 최기종 이중 볼록렌즈를 이용한 투시경 장치
JP6766068B2 (ja) * 2015-04-13 2020-10-07 イー．ブイ．エス．ソシエタ ア レスポンサビリタ リミタータ センプリフィカータ 両眼視野を改善するための設備
US11498396B1 (en) * 2018-12-24 2022-11-15 Robert N. Justice Viewing port

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424283A (en) * 1945-08-09 1947-07-22 Bendix Aviat Corp Optical system for telescopes and binoculars
GB1129121A (en) * 1965-02-05 1968-10-02 Jean Charles Joseph Blosse Improvements in and relating to optical spyglass
US3910676A (en) * 1974-10-07 1975-10-07 Raymond Lee Organization Inc Viewing device
US4082434A (en) * 1975-09-20 1978-04-04 Kabushiki Kaisha Ka-Pu Wide-angle optical system for door viewer
US4116529A (en) * 1976-11-29 1978-09-26 Takeyoshi Yamaguchi Wide-angle spyglass
US4257670A (en) * 1978-09-13 1981-03-24 Legrand Daniel L Optical peephole device insertable in thick walls for panoramic viewing therethrough
JPS55101908A (en) * 1979-01-31 1980-08-04 Yasushi Kamimura Wide angle door scope
GB8423090D0 (en) * 1984-09-12 1984-10-17 Sherrard W D Doorcall home-eye
US4730911A (en) * 1986-01-27 1988-03-15 Wood Stephen C Wide angle optical viewer
US4761065A (en) * 1986-07-07 1988-08-02 Ah Soon Lee Inspection device with adjustable viewing screen
JPH05237447A (ja) * 1992-02-28 1993-09-17 Nishikawa Kasei Co Ltd 樹脂塗装品

Also Published As

Publication number Publication date
JPH0274914A (ja) 1990-03-14
US4892399A (en) 1990-01-09
GB2221549A (en) 1990-02-07
GB8822840D0 (en) 1988-11-02
DE3835307A1 (de) 1990-02-08
KR920001168B1 (ko) 1992-02-06
KR900003508A (ko) 1990-03-26
GB2221549B (en) 1992-06-24

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)