Dimmer for use with vehicle
First Claim
1. A dimmer for use with a vehicle comprisingsensing means for sensing a vehicle speed to generate a first signal corresponding thereto;
- vehicle speed detecting means for receiving said first signal and detecting a substantial vehicle speed which is within a predetermined range to generate a second signal;
circuit means for controlling a light source in accordance with said second signal from said vehicle speed detecting means; and
a logic circuit for producing an output to operate said circuit means.
1 Assignment
0 Petitions
Accused Products
Abstract
A dimmer for use with a vehicle is provided. It has a vehicle speed detector circuit for detecting a state wherein the vehicle speed is within a predetermined range to generate a signal, an acceleration detector circuit for detecting a state wherein the acceleration of the vehicle is less than a predetermined value to generate a signal, switch means for controlling passage of a logical product which is obtained through a logic circuit alone or in combination with the respective signals from said vehicle speed detector circuit, said acceleration detector circuit and said switch circuit, and circuit means for controlling a light source in accordance with the output of said logic circuit. Therefore, the controlling the intensity of the light source to prevent light reflection on the window from the meters, indicators or the like, to eliminate dazzling a driver'"'"'s eyes and to provide safety driving is carried out in consideration of the acceleration state in addition to the state of vehicle speed, and even in the mode of cruising travel, confirmation of the meters, indicators or the like can be made as necessary by operation of the switch. Thereby, dimming operation can be carried out safety.
-
Citations
10 Claims
-
1. A dimmer for use with a vehicle comprising
sensing means for sensing a vehicle speed to generate a first signal corresponding thereto; -
vehicle speed detecting means for receiving said first signal and detecting a substantial vehicle speed which is within a predetermined range to generate a second signal; circuit means for controlling a light source in accordance with said second signal from said vehicle speed detecting means; and a logic circuit for producing an output to operate said circuit means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification