PARALLAX COMPENSATION CAMERA LIGHT

• US 3,783,261 A
• Filed: 11/01/1972
• Issued: 01/01/1974
• Est. Priority Date: 11/01/1972
• Status: Expired due to Term

• Current Assignee: Rudolf Hartmann
• Original Assignee: Rudolf Hartmann
• Inventors: Hartmann, Rudolf
• Primary Examiner(s): Braun, Fred L.
• Application Number:
  US05/302,682
• Time in Patent Office: 426 Days
• Field of Search: 240/1.3,2C,20,44.1,44.2 95/1R,11R,11L 352/139,140,198
• US Class Current: 362/18
• CPC Class Codes: G03B 15/03 Combinations of cameras with lighting apparatus; Flash units

Abstract

A light for a camera having an objective lens coupled to an automatic focusing apparatus. A link assembly connects the focusing apparatus to a pivotally supported camera light reflector. The position of the reflector is varied in accordance with the setting of the focusing apparatus so as to direct the light beam at the subject over a wide range of subject to camera distances.

Claims

1. In combination with an optical device having an adjustable focus lens having a primary axis, means for adjusting the focus of the lens, and a light for illuminating the subject being photographed including a reflector having a primary axis and a light source, the improvement comprising means mechanically coupling said reflector to the lens focus adjusting means so that the point of intersection of the primary axis of the reflector and the primary axis of the lens is varied as a function of the focus setting of the lens.

2. The combination of claim 1 wherein said reflector is pivotally mounted about an axIs normal to a plane passing through the primary axes of the lens and the reflector so that said coupling means serves to vary the angular orientation of the primary axis of the reflector with respect to the axis of the lens in accordance with the focus setting of the lens.

3. The combination of claim 1 wherein said coupling means includes a link assembly operatively associated between said reflector and said lens focus adjusting means, and said lens focus adjusting means includes a manually operable member which attains a position related to the focus setting of the lens, said link assembly being coupled to said manually operable member and to said reflector for positioning thereof.

4. In combination with an optical device having an adjustable focus lens having a primary axis, means for adjusting the focus of the lens, and a light for illuminating the subject being photographed, the light including a reflector having a primary axis and a light source, said reflector being movable with respect to the lens, the improvement comprising:

means coupling said light to the lens focus adjusting means so as to vary the point of intersection between the light beam from the light and the axis of the lens, said coupling means serving to vary the primary axis of the reflector with respect to the axis of the lens in accordance with the focus setting of the lens, said coupling means including a link assembly one end of which is coupled to said reflector and the remaining end of which is connected to the lens focus adjusting means.

5. The apparatus of claim 4 wherein said reflector is rotatable with respect to the lens about a fixed axis, said fixed axis being normal to a plane passing through the center of said reflector and the camera lens axis so as to facilitate adjustment of the point of intersection between the primary axis of the reflector and the axis of the lens.

6. The apparatus of claim 5 wherein the lens focusing means includes a manually operable member which attains a position related to the focus setting of the lens, said link assembly being coupled to said manually operable member and to said reflector for positioning thereof.

7. The apparatus of claim 6 wherein said link assembly includes a lug secured to said reflector and an elongated drive rod coupled to said lug and passing into the camera body, the remaining end of said drive rod being coupled to said manually operable member for movement therewith.