JPS6467801A - Downward head light for vehicle - Google Patents
Downward head light for vehicleInfo
- Publication number
- JPS6467801A JPS6467801A JP62224804A JP22480487A JPS6467801A JP S6467801 A JPS6467801 A JP S6467801A JP 62224804 A JP62224804 A JP 62224804A JP 22480487 A JP22480487 A JP 22480487A JP S6467801 A JPS6467801 A JP S6467801A
- Authority
- JP
- Japan
- Prior art keywords
- luminous
- intensity distribution
- focal point
- distribution pattern
- luminous flux
- 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.)
- Pending
Links
Abstract
PURPOSE: To effectively utilize a luminous flux to form the desirable luminous intensity distribution pattern by installing a luminous intensity distribution forming means which reflects part of luminous flux advancing to the region unnecessary for the luminous intensity distribution pattern of the luminous flux emitted downward from a light source, and returns to the vicinity of a first focal point. CONSTITUTION: Part of luminous flux advancing to the region unnecessary for the luminous intensity distribution pattern, i.e., luminous fluxes d1 , d2 emitted downward from a light source 2 are reflected on the lower side reflecting surface 1b of an elliptic reflecting mirror 1, reflected with an auxiliary elliptic reflecting mirror 6 after passed through a second focal point F2, returned through an optical path same as the coming path, passed through the lower side reflecting surface 1b of the elliptic reflecting mirror 1 and a first focal point F1, reflected with an upper side reflecting surface 1a, passed through the lower half of the second focal point F2 and a condenser lens 3, then irradiated to the outside as parallel illumination luminous fluxes d1 ', d2 '. The luminous flux emitted from the light source 2 is effectively utilized to ensure sufficient illumination luminance, and the desirable luminous intensity distribution pattern is formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62224804A JPS6467801A (en) | 1987-09-08 | 1987-09-08 | Downward head light for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62224804A JPS6467801A (en) | 1987-09-08 | 1987-09-08 | Downward head light for vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6467801A true JPS6467801A (en) | 1989-03-14 |
Family
ID=16819463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62224804A Pending JPS6467801A (en) | 1987-09-08 | 1987-09-08 | Downward head light for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6467801A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01130203U (en) * | 1988-02-29 | 1989-09-05 |
-
1987
- 1987-09-08 JP JP62224804A patent/JPS6467801A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01130203U (en) * | 1988-02-29 | 1989-09-05 |
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