Peripheral vision non-distorting rear view mirror

• US 3,972,601 A
• Filed: 08/19/1974
• Issued: 08/03/1976
• Est. Priority Date: 08/19/1974
• Status: Expired due to Term

• Current Assignee: William P. Johnson
• Original Assignee: William P. Johnson
• Inventors: Johnson, William
• Primary Examiner(s): Corbin, John K.
• Assistant Examiner(s): Henry, Jon W.
• Application Number:
  US05/498,864
• Time in Patent Office: 715 Days
• Field of Search: 350/303, 350/288, 350/289, 350/292, 350/296, 350/299, 350/301, 350/307, 350/97, 350/91, 350/100, 350/103, 350/106, 350/109, D12/187, D12/188, D12/189, D86/10 H, D45/1 A, 63/32
• US Class Current: 359/866
• CPC Class Codes: B60R 1/082 using a single wide field mirror or an association of rigidly connected mirrors
• CPC Class Codes: G02B 5/08 Mirrors vehicle mirrors involving special optical features B60R1/08

Abstract

An optical configuration suitable for use as a rear view mirror for motor vehicles, the configuration including a plurality of distortion-free plane reflecting mirror surfaces oriented to provide a complete peripheral view without distortion.

Claims

1. A mirror having at least first and second opposite sides for providing complete peripheral non-distorted vision to said first side, comprising:

first and second plane mirror surfaces on said first side having at least first and second opposite edges, the first edges of said first and second plane mirror surfaces adjoining each other at a center line having first and second ends along said first edges, said first and second mirror surfaces sloping from said center line toward said second side at an angle of 2°

to 3°

;

a third plane mirror surface on said first side adjoining said first mirror surface at the second edge thereof and sloping toward said second side at an angle of 3°

to 4°

; and

a fourth plane mirror surface on said first side adjoining said second mirror surface at the second edge thereof and sloping toward said second side at an angle of 3°

to 4°

.

2. The mirror of claim 1 further comprising:

a fifth plane mirror surface on said first side adjoining said first, second, third and fourth mirror surfaces at third edges thereof and intersecting the first end of the center line and sloping toward said second side.

3. The mirror of claim 2 further comprising:

a sixth plane mirror surface on said first side adjoining said first, second, third and fourth mirror surfaces at fourth edges thereof and intersecting the second end of the center line and sloping toward said second side.

4. The mirror of claim 2 wherein:

said first and second mirror surfaces are approximately 1.5 inches wide;

said third and fourth mirror surfaces are approximately 0.5 inches wide, and

said fifth mirror surface is approximately 1.0 inches wide measured from the first end point of said center line along the direction of slope.

5. The mirror of claim 3 wherein:

said fifth mirror surface slopes toward said second side at an angle of 2.0°

to 3°

. and

said sixth mirror surface slopes toward said second side at an angle of 2.0°

to 3.0°

.

6. In combination:

a mirror having first and second, opposite sides and having at least five plane mirror surfaces on said first side inclined one to the other;

holding means for receiving said mirror;

mounting means for mounting said holding means and said mirror to provide vision to said first side;

the first and second mirror surfaces adjoining each other to form a first common edge having first and second ends;

the third mirror surface adjoining said first mirror surface along a second common edge having first and second ends, said second common edge being substantially parallel to said first common edge;

the fourth mirror surface adjoining said second mirror surface along a third common edge having first and second ends, said third common edge being substantially parallel to said first common edge; and

the fifth mirror surface adjoining said first, second third and fourth mirror surfaces at the first ends of the respective common edges thereof.

7. The combination recited in claim 6 further comprising a sixth mirror surface adjoining said first, second, third and fourth mirror surfaces at the second ends of the respective common edges thereof.