Unlock instant, AI-driven research and patent intelligence for your innovation.

Light source apparatus, analyzer using the same, and method for controlling light source apparatus

A light source device and light source technology, applied in the field of analyzers, can solve problems such as long time

Inactive Publication Date: 2005-03-30
SHIMADZU SEISAKUSHO CO LTD
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, this method takes a long time to stabilize the detection value of the detector 10

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light source apparatus, analyzer using the same, and method for controlling light source apparatus
  • Light source apparatus, analyzer using the same, and method for controlling light source apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The embodiments of the present invention will be described below.

[0020] figure 1 It is a view schematically showing the structure of an embodiment obtained by applying the light source device of the present invention to an ultraviolet spectrophotometer.

[0021] The deuterium lamp 1 is used as a light source. The light output from the lamp 1 is collected by the reflector 2 to the entrance slit (not shown) of the beam splitter part 4. After the light is spectrally decomposed in the spectroscope part 4, the decomposed light is irradiated to a sample cell (not shown). Then, the light transmitted by the sample is detected by the detector 10, thereby measuring the absorbance.

[0022] A cooling fan 8 for the air-cooled lamp house 3 is installed near the lamp house 3 in which the lamp 1 is housed. The cooling fan 8 is installed at the discharge port of the housing 5 and is suitable for directly sucking out the hot air around the lamp chamber 3 to the outside of the device.

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A cooling fan for air-cooling a lamp housing is installed near to the lamp housing in which the lamp is accommodated. This cooling fan is adapted to suck out heated air surrounding the lamp housing directly to the outside of an apparatus. A time taken by the temperature of the lamp housing, which rises due to heat generated by the lamp, to reach a stable temperature is preliminarily set in a fan control portion. The fan control portion controls the cooling fan in such a way as to stop until this time elapses. Alternatively, the fan control portion initially operates the cooling fan at a rotating speed that is lower than a normal operation rotating speed, and thereafter causes the fan to start rotating at the normal operation rotating speed.

Description

Technical field [0001] The present invention relates to various analyzers, such as a spectrophotometer, a fluorophotometer, and a refractometer, and relates to a light source device used therein. Background technique [0002] Hitherto, discharge tubes such as deuterium lamps and tungsten lamps have been used as light sources for analyzers such as spectrophotometers, fluorometers, or refractometers. In these light sources, most of the input electrical energy is converted into heat. Therefore, the light source itself is heated. As the emission time elapses, the temperature of the light source rises. When its temperature rises excessively, the light source itself will be destroyed. Therefore, the light source needs to be cooled. In addition, the amount of light radiation from the light source will vary due to such temperature changes. Therefore, it is also necessary to take countermeasures to prevent the change in the light radiation amount of the light source caused by the change i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/10F21V29/00F21V29/02G01J1/08G01J3/02G01N21/01G01N21/33
CPCF21V29/02G01J3/0286G01J3/10G01J3/02F21V29/677
Inventor 小田竜太郎
Owner SHIMADZU SEISAKUSHO CO LTD