JPS55143503A - Fade area recognizing device for automobile - Google Patents
Fade area recognizing device for automobileInfo
- Publication number
- JPS55143503A JPS55143503A JP5153079A JP5153079A JPS55143503A JP S55143503 A JPS55143503 A JP S55143503A JP 5153079 A JP5153079 A JP 5153079A JP 5153079 A JP5153079 A JP 5153079A JP S55143503 A JPS55143503 A JP S55143503A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- driver
- seat
- fade area
- visual field
- 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.)
- Granted
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Lenses (AREA)
Abstract
PURPOSE: To eliminate the fade area from the driver's seat and make possible accurate object confirmation by constituting the mirror surface of an objective mirror by the convex surface of revolution body of which the radius of curvature increases gradually from the center of rotation toward the outer side.
CONSTITUTION: This device is mounted near the upper left corner of the driver's seat of a truck, bus or the like and consists of an objective mirror 2, of which the visual field is the portion X to become a fade area that cannot be directly recognized from the driver's seat and an eyepiece mirror 3 which is so disposed as to make the video of said objective mirror visible from the eye point EP of the driver's seat. The reflecting portion of the mirror surface of the objective mirror 2 is constituted by the convex surface-of-revolution body of which the radius of curvature increases subsequently from the center of rotation toward the outer side, so as to decrease the distortions of the video. The eye point EP of the driver and the objective mirror 2 and eyepiece mirror 3 are disposed nearly on a straight line so that the dynamic visual field coinciding with the advancing direction of the vehicle is obtained. The visual field becomes Z shown in the figure and this perfectly covers the foregoing fade area X.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5153079A JPS55143503A (en) | 1979-04-27 | 1979-04-27 | Fade area recognizing device for automobile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5153079A JPS55143503A (en) | 1979-04-27 | 1979-04-27 | Fade area recognizing device for automobile |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55143503A true JPS55143503A (en) | 1980-11-08 |
JPH0416761B2 JPH0416761B2 (en) | 1992-03-25 |
Family
ID=12889568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5153079A Granted JPS55143503A (en) | 1979-04-27 | 1979-04-27 | Fade area recognizing device for automobile |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55143503A (en) |
-
1979
- 1979-04-27 JP JP5153079A patent/JPS55143503A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0416761B2 (en) | 1992-03-25 |
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