High sensitivity absorptiometer
First Claim
1. A high sensitivity absorptiometer comprising a light source lamp with an inevitable heat generation, sample containing means through which light from said light source lamp transmits, detecting means for detecting the light transmitted through said sample accommodating means, and a chamber formed by at least a surface portion of said light source lamp and an enclosing wall member fitted tightly to said surface so that said chamber is inhibited from fluid communication with the exterior, wherein said light emitted from said light source lamp and directed to said sample containing means is caused to pass through said chamber.
0 Assignments
0 Petitions
Accused Products
Abstract
A high sensitivity absorptiometer comprises a light source lamp accompanied inevitably with heat generation, a sample container through which the light from the light source is transmitted and a detector device for detecting the light which has transmitted through the sample container. The light emitted from the light source lamp and directed to the sample container is adapted to pass through a chamber which is formed fluid-tight on a surface portion of the light source lamp or through a solid state optical conductor such as optical fiber having a light inlet end face closely fitted to the surface portion of the lamp, thereby to suppress movement and turbulence of air as caused by heat generated by the light source lamp with a view to excluding noise and drift ascribable to the air movement or turbulence phenomenon from the signal obtained from the detector device.
-
Citations
18 Claims
- 1. A high sensitivity absorptiometer comprising a light source lamp with an inevitable heat generation, sample containing means through which light from said light source lamp transmits, detecting means for detecting the light transmitted through said sample accommodating means, and a chamber formed by at least a surface portion of said light source lamp and an enclosing wall member fitted tightly to said surface so that said chamber is inhibited from fluid communication with the exterior, wherein said light emitted from said light source lamp and directed to said sample containing means is caused to pass through said chamber.
-
17. A high sensitivity absorptiometer comprising a light source lamp with an inevitable heat generation, sample containing means through which light from said light source lamp is caused to pass, an optical fiber having a light input end face positioned in contact with a surface portion of said light source lamp and serving to guide the light from said light source lamp to said sample containing means, and detecting means for detecting light transmitted through said sample containing means.
-
18. A high sensitivity absorptiometer comprising a light source lamp with an inevitable heat generation, sample containing means through which light emitted from said light source lamp is caused to pass, detecting means for detecting light transmitted through said sample containing means, an optical fiber for guiding the light from said light source lamp to said sample containing means, and a fluid-tight chamber formed by at least a surface portion of said light source lamp, an enclosing wall member closely fitted to said surface portion and a light input end face of said optical fiber.
Specification