Nonimaging radiant energy device
First Claim
1. A radiant energy transformer for receiving radiant energy impinging upon said transformer within a first acute angle and emitting said radiant energy within a second acute angle, said transformer comprising:
- a reflective element having a radiant energy inlet and a radiant energy outlet;
a first lens means operatively coupled to transmit radiant energy to said reflective element at said radiant energy inlet, said first lens means being convex and having a first focal length; and
a second lens means operatively coupled to receive radiant energy from said reflective element at said radiant energy outlet, said second lens means being concave and having a second focal length, said first focal length of said first lens means and said second focal length of said second lens means having a difference therebetween, said difference being substantially equal to the distance between said first lens means and said second lens means,the shape of said reflective element causing radiant energy that impinges upon said reflective element from within a first acute angle with respect to said radiant energy inlet to be reflected such that said radiant energy emerges from said radiant energy outlet exclusively within a second acute angle with respect to said radiant energy outlet.
1 Assignment
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Accused Products
Abstract
A nonimaging radiant energy device may include a hyperbolically shaped reflective element with a radiant energy inlet and a radiant energy outlet. A convex lens is provided at the radiant energy inlet and a concave lens is provided at the radiant energy outlet. Due to the provision of the lenses and the shape of the walls of the reflective element, the radiant energy incident at the radiant energy inlet within a predetermined angle of acceptance is emitted from the radiant energy outlet exclusively within an acute exit angle. In another embodiment, the radiant energy device may include two interconnected hyperbolically shaped reflective elements with a respective convex lens being provided at each aperture of the device.
58 Citations
9 Claims
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1. A radiant energy transformer for receiving radiant energy impinging upon said transformer within a first acute angle and emitting said radiant energy within a second acute angle, said transformer comprising:
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a reflective element having a radiant energy inlet and a radiant energy outlet; a first lens means operatively coupled to transmit radiant energy to said reflective element at said radiant energy inlet, said first lens means being convex and having a first focal length; and a second lens means operatively coupled to receive radiant energy from said reflective element at said radiant energy outlet, said second lens means being concave and having a second focal length, said first focal length of said first lens means and said second focal length of said second lens means having a difference therebetween, said difference being substantially equal to the distance between said first lens means and said second lens means, the shape of said reflective element causing radiant energy that impinges upon said reflective element from within a first acute angle with respect to said radiant energy inlet to be reflected such that said radiant energy emerges from said radiant energy outlet exclusively within a second acute angle with respect to said radiant energy outlet. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A radiant energy transformer for receiving radiant energy impinging upon said transformer within a first acute angle and emitting said radiant energy within a second acute angle, said transformer comprising:
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a reflective element having a radiant energy inlet and a radiant energy outlet; a first lens means operatively coupled to transmit radiant energy to said reflective element at said radiant energy inlet; a second lens means operatively coupled to said reflective element at said radiant energy outlet, said first lens means and said second lens means having opposing power and a common focal plane, the shape of said reflective element causing radiant energy that impinges upon said reflective element from within a first acute angle with respect to said radiant energy inlet to be reflected such that said radiant energy emerges from said radiant energy outlet exclusively within a second acute angle with respect to said radiant energy outlet. - View Dependent Claims (8, 9)
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Specification