Apparatus with laminated diffuser for illuminating medical diagnostic imaging film
First Claim
1. Illuminating apparatus comprising:
- medical diagnostic imaging film;
a light source for projecting light toward said imaging film;
a plurality of light diffusion film layers positioned in close adjacent relationship with one another between said imaging film and said light source, each of said diffusion film layers having a specified index of refraction, and said diffusion film layers collectively acting to scatter said projected light;
an optical transfer adhesive having an index of refraction which is substantially equal to said specified index of refraction positioned between respective adjacent surfaces of said diffusion film layers to substantially eliminate air-filled spaces therebetween, and to bond said diffusion film layers together into a unitary light diffusion structure; and
collimating means positioned between said light diffusion structure and said imaging film for redirecting at least a portion of said scattered light into a beam of collimated light directed toward said imaging film.
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Accused Products
Abstract
Apparatus for illuminating medical diagnostic imaging film comprises a light source for projecting light toward the imaging film, and a plurality of light diffusion film layers positioned in close adjacent relationship with one another, between the imaging film and the light source. Each of the diffusion film layers has a specified index of refraction, and the diffusion layers collectively act to scatter the projected light. An optical adhesive having an index of refraction which is substantially equal to the diffusion film index of refraction is positioned between respective adjacent surfaces thereof to substantially eliminate air-filled spaces therebetween, and to bond the film diffusion layers together into a unitary light diffusion structure. A plurality of layers of microprism film are positioned between the light diffusion film and the imaging film for redirecting at least a portion of the scattered light into a beam of collimated light directed to illuminate the imaging film.
35 Citations
21 Claims
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1. Illuminating apparatus comprising:
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medical diagnostic imaging film; a light source for projecting light toward said imaging film; a plurality of light diffusion film layers positioned in close adjacent relationship with one another between said imaging film and said light source, each of said diffusion film layers having a specified index of refraction, and said diffusion film layers collectively acting to scatter said projected light; an optical transfer adhesive having an index of refraction which is substantially equal to said specified index of refraction positioned between respective adjacent surfaces of said diffusion film layers to substantially eliminate air-filled spaces therebetween, and to bond said diffusion film layers together into a unitary light diffusion structure; and collimating means positioned between said light diffusion structure and said imaging film for redirecting at least a portion of said scattered light into a beam of collimated light directed toward said imaging film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Illuminating apparatus comprising:
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medical diagnostic imaging film; a light source for projecting light toward said imaging film; a light diffusion structure positioned with respect to said light source for scattering said projected light; collimating film positioned to redirect at least a portion of said scattered light into a beam of collimated light directed to pass through said imaging film; and a frame disposed to support said imaging film and said collimating film, and to selectively curve said collimating film so that said curved collimating film focuses said collimated light to a specified focal point. - View Dependent Claims (11, 12, 13, 14, 15)
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16. Apparatus for illuminating medical diagnostic imaging film comprising:
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a light source for projecting light in a specified direction; means selectively positioned with respect to said light source for scattering said projected light; collimating film disposed to receive at least a portion of said scattered light, and to redirect said received portion into a beam of collimated light; and a frame disposed to support said imaging film with respect to said collimating film so that said collimated light passes through said imaging film, said frame being further disposed to selectively curve said collimating film so that said curved collimating film focuses said collimated light to a specified focal point. - View Dependent Claims (17, 18, 19, 20)
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21. The apparatus of claim 21 wherein said light scattering means comprises:
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a plurality of light diffusion film layers positioned in close adjacent relationship with one another, each of said diffusion film layers having a specified index of refraction; and an optical transfer adhesive having an index of refraction which is substantially equal to said specified index of refraction positioned between respective adjacent surfaces of said diffusion film layers to substantially eliminate air-filled spaces therebetween, and to bond said diffusion film layers together into a unitary light diffusion structure.
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Specification