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COMAPARE the View Field of BOSHI Rearview Mirror

compare.jpg (18218 bytes)

            View Filed ( compare 1 )

                  View Filed ( compare 2 )

     
TECHNICAL PARAMETER
Tested By

 Samples Tested

CONCLUSION

Reflectivity of reflecting surface

Radius of curvature of reflecting surface 
National Car Supervision & Inspection Center

Outside rearview mirror (BOSHI Santana 2000

66.2%

1240mm
National Car Supervision & Inspection Center Outside rearview mirror (BOSHI DM-1 III)

61%

1388mm
PERCEPTION ANALYSIS OF REARVIEW MIRROR
Worst Worse Bad Normal Good Better Best
-3 -2 -1 0 1 2 3

TEST RESULT

ITEM

CHANCES OF DIFFERENT GRADES

MONOMIAL GRADE

 INTEGRATED GRADE
-3 -2 -1 0 1 2 3
VIEW FIELD                2 58 2.97

1.81
DISTANT SENSE       12    7 15 26 1.72
REALITY SENSE       16    9 17 18 1.35
ANTI-DAZZLING IN THE EVENING             5 33 22 2.28
ANTI_VERTIGINOUS          31 26 3 0.53
COMFORTABLE SENSE       4 4 6 21 25

1.98
PERFORMANCES CONTRAST TABLE OF VARIOUS VEHICLE'S OUTSIDE REARVIEW MIRRORS: 
TYPE CHARACTERISTICS

ADVANTAGE

 DISADVANTAGE
Plane outside mirror Plane mirror Clear image is and none or less distortion Narrow eyeshot, big dead angle, traffic accident is incidental when wheeling, overtaking and changing line
Spherical rearview mirror Single curved mirror (with the same curvature radius) Wide view field Blurry image, more distortion, bad distant sense, with dizziness
Hyperbolical rearview mirror Two different curvature radius make up of a mirror surface Narrow view field, clear image, less distortion, anti-dazzling in the evening Bad distant sense and less distortion

“BOSHI” Multiple Curvature Rearview Mirror without Blind-spots (patented in Dec 1995)

 Countless different curvature radius make up of a mirror surface Better distant sense, wide view field, no distortion, clear image, anti-dazzling in the evening