Transparent heating plate for examination of specimens and transparent heating device for use therewith
First Claim
1. A transparent heating plate comprising a transparent plate assembly which comprises a first transparent plate, a second transparent plate put opposite to the first transparent plate apart with a space of predetermined distance, and a transparent insulative material filled between the first and second transparent plates and a housing which holds the peripheral part of the transparent plate assembly, characterized in that:
- said first transparent plate has a first transparent heating element formed on either side and a pair of electrodes for first heating element connected to the first transparent heating element and disposed opposite to each other;
the second transparent plate has a second transparent heating element formed on either side and a pair of electrodes for second heating element connected to the second transparent heating element and disposed opposite to each other; and
the center line of the opposite electrodes for the second heating element is oriented so as to intersect the center line of said opposite electrodes of first heating element substantially at right angles.
1 Assignment
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Accused Products
Abstract
A transparent heating plate and transparent heating device for examination of specimens under a microscope can heat the entire transparent conductive film between electrodes of the transparent heating plate with a small difference in temperature. The transparent heating plate can also heat the vicinity of the center of the transparent heating plate used for examination at substantially a uniform temperature regardless of the shape of the transparent heating plate or the structure of the transparent heating plate. The transparent heating plate may also prevent electromagnetic waves generated from the transparent heating plate from flowing into objects put on the outer side of the transparent heating plate. A further embodiment of a transparent heating plate prevents scattering of broken pieces of glass should the transparent heating plate break.
27 Citations
17 Claims
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1. A transparent heating plate comprising a transparent plate assembly which comprises a first transparent plate, a second transparent plate put opposite to the first transparent plate apart with a space of predetermined distance, and a transparent insulative material filled between the first and second transparent plates and a housing which holds the peripheral part of the transparent plate assembly, characterized in that:
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said first transparent plate has a first transparent heating element formed on either side and a pair of electrodes for first heating element connected to the first transparent heating element and disposed opposite to each other; the second transparent plate has a second transparent heating element formed on either side and a pair of electrodes for second heating element connected to the second transparent heating element and disposed opposite to each other; and the center line of the opposite electrodes for the second heating element is oriented so as to intersect the center line of said opposite electrodes of first heating element substantially at right angles. - View Dependent Claims (2, 3, 4, 5)
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6. A transparent heating plate comprising a transparent plate assembly which comprises a first transparent plate, a second transparent plate put opposite to the first transparent plate apart with a space of predetermined distance, and a transparent insulative material filled between the first and second transparent plates and a housing which holds the peripheral part of the transparent plate assembly, characterized in that:
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a transparent conductive film is formed on both of the opposite inner sides of said first and second transparent plates, a pair of electrodes for heating the conductive film are formed on either one of said sides so as to be connected to the transparent conductive film and disposed opposite to each other, and a grounding wire is connected to the transparent conductive film on the other side. - View Dependent Claims (7, 8, 9, 10)
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11. A transparent heating plate comprising a circular transparent plate assembly which comprises a circular first transparent plate, a circular second transparent plate put opposite to the first transparent plate apart with a space of predetermined distance, and a transparent insulative material filled between the first and second transparent plates and a housing which holds the peripheral part of the transparent plate assembly, characterized by further comprising:
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a transparent conductive film formed on either side of said first or second transparent plate; and a pair of curved electrodes for heating the element connected to the transparent conductive film and formed opposite to each other on or near the circumferential part of the transparent plate; said transparent conductive film being smaller in resistance between the middle part of one electrode and the middle part of the other electrode and greater in resistance of the other part than of the central part. - View Dependent Claims (12, 13, 14, 15, 16)
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17. The transparent heating plate of 11, wherein said transparent heating plate has a temperature sensor disposed substantially at the middle position between the adjacent ends of the opposite electrodes.
Specification