KR880006540U - Shadowless - Google Patents
ShadowlessInfo
- 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
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)
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) |
-
1986
- 1986-09-09 KR KR2019860013868U patent/KR890003922Y1/en not_active IP Right Cessation
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 |