Optical module for a motor vehicle headlight provided with an optical deviation element
First Claim
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1. An optical module for a motor vehicle headlight comprising:
- a reflector having an optical axis and at least one focus, a light source placed in the vicinity of said at least one focus of said reflector, and a transparent optical deviation element placed in front of part of said reflector and comprising a lens, said reflector being placed at a rear of said lens, said transparent optical deviation element being rotated to provide a substantially horizontal spread of the light, wherein a first face of said lens lies in a plane that is tangent to said optical axis of said reflector is substantially disposed along a horizontal axis, with at least one of said first face of said lens or a second face of said lens having vertical generatrices disposed obliquely with respect to said plane by an angle different from ninety degrees, wherein said vertical generatrices of said first face and said second face remain substantially parallel after such rotation and a direction of said light source not being substantially affected by such rotation.
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Abstract
An optical module for a motor vehicle headlight comprising a reflector having an optical axis and at least one focus, a light source placed in the vicinity of the focus to be reflected, and a transparent optical deviation element placed in front of part of the reflector and comprising a lens referred to as a “square lens”, the reflector being placed at the rear of the lens, the optical deviation element being able to provide an essentially horizontal spread of the light. The exit face of the “square lens”is tangent to a plane disposed obliquely with respect to the optical axis.
17 Citations
21 Claims
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1. An optical module for a motor vehicle headlight comprising:
a reflector having an optical axis and at least one focus, a light source placed in the vicinity of said at least one focus of said reflector, and a transparent optical deviation element placed in front of part of said reflector and comprising a lens, said reflector being placed at a rear of said lens, said transparent optical deviation element being rotated to provide a substantially horizontal spread of the light, wherein a first face of said lens lies in a plane that is tangent to said optical axis of said reflector is substantially disposed along a horizontal axis, with at least one of said first face of said lens or a second face of said lens having vertical generatrices disposed obliquely with respect to said plane by an angle different from ninety degrees, wherein said vertical generatrices of said first face and said second face remain substantially parallel after such rotation and a direction of said light source not being substantially affected by such rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 21)
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14. An optical module for a motor vehicle headlight, said optical module comprising:
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a reflector having an optical axis and at least one focus, a light source placed in the vicinity of said at least one focus of the reflector, and a lens in front of said reflector for providing a substantially horizontal spread of the light, wherein, at least one of a first face or a second face of said lens is generally tangent to a plane disposed obliquely with respect to said optical axis and said second face that forms an angle with respect to a plane that is normal to said optical axis wherein at least one of said first face or said second face comprises vertical generatrices obliquely oriented with respect to said plane by an angle different from ninety degrees, wherein said vertical generatrices of said first face and said second face remain substantially parallel after such rotation and a direction of said light source not being substantially affected by such rotation. - View Dependent Claims (15, 16, 17, 18, 19)
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20. An optical module for a motor vehicle headlight comprising:
a reflector having an optical axis and at least one focus, a light source placed in the vicinity of said at least one focus of the reflector, and a transparent optical deviation element placed in front of part of the reflector and comprising a lens having a cylindrical face with vertical generatrices, said reflector being placed at the rear of said lens, said transparent optical deviation element being rotated to provide a substantially horizontal spread of the light, wherein an exit face of said lens being generally tangent to a plane disposed obliquely with respect to said optical axis and said optical axis of said reflector being substantially disposed along a horizontal axis, with said cylindrical face being inclined with respect thereto by an angle different from ninety degrees and wherein said vertical generatrices are disposed obliquely with respect to said planes, wherein said vertical generatrices of said first face and said second face remain substantially parallel after such rotation and a direction of said light source not being substantially affected by such rotation.
Specification