OPTICAL MIRROR
First Claim
1. A LIGHT-WEIGHT OPTICAL MIRROR, SUITABLE FOR HIGH-SPEED SCANNING SYSTEMS, COMPRISING THE COMBINATION OF A THIN GLASS LAYER NOT EXCEEDING 6 MILLIMETERS IN THICKNESS, WITH A CARRIER BASE MADE OF A REFRACTORY METAL WITH A LOW SPECIFIC WEIGHT BETWEEN 1.86 AND 4.507 GRAMS PER CM3, CONSTITUTING A RIGID FRAME ONTO WHICH SAID GLASS LAYER IS BAKED AND WITH WHICH IT IS FUSED, WITH THE EXCLUSION OF A FRAME AND THE LIKE MEMBER;
- SAID REFRACTORY METAL HAVING A SOFTENING TEMPERATURE EXCEEDING THAT OF SAID GLASS LAYER BY MORE THAN 100*C, AND A THERMAL EXPANSION COEFFICIENT SO CLOSE TO THAT OF SAID GLASS LAYER THAT DEFORMING STRESSES DO NOT APPEAR THEREBETWEEN WITHIN THE REGION OF OPERATING TEMPERATURES;
AND A REFLECTING COATING APPLIED TO A POLISHED EXTERNAL SURFACE OF SAID GLASS LAYER, COMBINING HIGH MECHANICAL STRENGTH AND RIGIDITY, AS INHERENT IN SAID REFRACTORY METAL, WITH EXCELLENT THERMAL RESISTANCE AND IMPACT STRENGTH, AS IMPARTED BY SAID REFLECTING COATING TO THE RESULTING COMBINATION OF SAID METAL BASE AND SAID GLASS LAYER.
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Accused Products
Abstract
A light-weight optical mirror in the form of a thin glass layer baked with a carrier base made of a refractory metal having a softening temperature exceeding that of the glass layer by more than 100*C and a linear thermal expansion coefficient very close to that of the glass layer. A reflecting coating is applied to the external surface of the glass layer after baking it with the carrier base.
11 Citations
2 Claims
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1. A LIGHT-WEIGHT OPTICAL MIRROR, SUITABLE FOR HIGH-SPEED SCANNING SYSTEMS, COMPRISING THE COMBINATION OF A THIN GLASS LAYER NOT EXCEEDING 6 MILLIMETERS IN THICKNESS, WITH A CARRIER BASE MADE OF A REFRACTORY METAL WITH A LOW SPECIFIC WEIGHT BETWEEN 1.86 AND 4.507 GRAMS PER CM3, CONSTITUTING A RIGID FRAME ONTO WHICH SAID GLASS LAYER IS BAKED AND WITH WHICH IT IS FUSED, WITH THE EXCLUSION OF A FRAME AND THE LIKE MEMBER;
- SAID REFRACTORY METAL HAVING A SOFTENING TEMPERATURE EXCEEDING THAT OF SAID GLASS LAYER BY MORE THAN 100*C, AND A THERMAL EXPANSION COEFFICIENT SO CLOSE TO THAT OF SAID GLASS LAYER THAT DEFORMING STRESSES DO NOT APPEAR THEREBETWEEN WITHIN THE REGION OF OPERATING TEMPERATURES;
AND A REFLECTING COATING APPLIED TO A POLISHED EXTERNAL SURFACE OF SAID GLASS LAYER, COMBINING HIGH MECHANICAL STRENGTH AND RIGIDITY, AS INHERENT IN SAID REFRACTORY METAL, WITH EXCELLENT THERMAL RESISTANCE AND IMPACT STRENGTH, AS IMPARTED BY SAID REFLECTING COATING TO THE RESULTING COMBINATION OF SAID METAL BASE AND SAID GLASS LAYER.
- SAID REFRACTORY METAL HAVING A SOFTENING TEMPERATURE EXCEEDING THAT OF SAID GLASS LAYER BY MORE THAN 100*C, AND A THERMAL EXPANSION COEFFICIENT SO CLOSE TO THAT OF SAID GLASS LAYER THAT DEFORMING STRESSES DO NOT APPEAR THEREBETWEEN WITHIN THE REGION OF OPERATING TEMPERATURES;
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2. The optical mirror as defined in claim 1, in which said polished glass layer has a thickness of between 0.1 and 0.6 mm.
Specification
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- Resources
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Current AssigneeIosif Ivanovich Kryzhanovsky
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Original AssigneeIosif Ivanovich Kryzhanovsky
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InventorsKryzhanovsky, Iosif Ivanovich
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Primary Examiner(s)Wibert, Ronald L.
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Assistant Examiner(s)Tokar, Michael J.
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Application NumberUS05/342,319Time in Patent Office648 DaysField of Search350/288,6,7,299,310,303,304US Class Current359/848CPC Class CodesG02B 5/08 Mirrors vehicle mirrors inv...
