KR880006540U - Shadowless - Google Patents

Shadowless

Info

Publication number
KR880006540U
KR880006540U KR2019860013868U KR860013868U KR880006540U KR 880006540 U KR880006540 U KR 880006540U KR 2019860013868 U KR2019860013868 U KR 2019860013868U KR 860013868 U KR860013868 U KR 860013868U KR 880006540 U KR880006540 U KR 880006540U
Authority
KR
South Korea
Prior art keywords
shadowless
Prior art date
Application number
KR2019860013868U
Other languages
Korean (ko)
Other versions
KR890003922Y1 (en
Inventor
이병선
Original Assignee
이병선
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 이병선 filed Critical 이병선
Priority to KR2019860013868U priority Critical patent/KR890003922Y1/en
Publication of KR880006540U publication Critical patent/KR880006540U/en
Application granted granted Critical
Publication of KR890003922Y1 publication Critical patent/KR890003922Y1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
    • F21S6/006—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting for direct lighting only, e.g. task lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/36—Hoisting or lowering devices, e.g. for maintenance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/20—Lighting for medical use
    • F21W2131/205—Lighting for medical use for operating theatres

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
KR2019860013868U 1986-09-09 1986-09-09 Lamp without shadow KR890003922Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860013868U KR890003922Y1 (en) 1986-09-09 1986-09-09 Lamp without shadow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860013868U KR890003922Y1 (en) 1986-09-09 1986-09-09 Lamp without shadow

Publications (2)

Publication Number Publication Date
KR880006540U true KR880006540U (en) 1988-05-31
KR890003922Y1 KR890003922Y1 (en) 1989-06-10

Family

ID=19255563

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019860013868U KR890003922Y1 (en) 1986-09-09 1986-09-09 Lamp without shadow

Country Status (1)

Country Link
KR (1) KR890003922Y1 (en)

Also Published As

Publication number Publication date
KR890003922Y1 (en) 1989-06-10

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19910410

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee