Rail tunnel lamp of high light efficiency

• Main Authors: LIU YIN, GUAN SHIFU
• Format: Patent
• Language: Chinese; English
• Published: 24.10.2017
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

The utility model provides a rail tunnel lamp of high light efficiency, include: LED light source subassembly, anti - light cup and light -passing board, anti - light cup's both ends are the open end respectively to anti - light cup's inside has the cavity of two open ends of intercommunication, the cavity has the structure that the opening radius increases gradually from an open end to another open end, LED light source subassembly is located the anti - less open end department of light cup opening radius to LED chip on the LED light source subassembly passes through the open end exposes in the cavity, the light -passing board is installed in the anti - great open end department of light cup opening radius, and the anti - light cup of the partly process of the light reflection back that the LED chip sent goes out to pass through from the light -passing board sends, and another part is direct to be sent from the light -passing board transmission, is ratio between the diameter L of light -passing board and ant