OPTICAL MEASURING DEVICE AND SAFETY DEVICE USED THEREIN

• US 20170299515A1
• Filed: 04/14/2016
• Published: 10/19/2017
• Est. Priority Date: 04/14/2016
• Status: Active Grant

• Current Assignee: Shimadzu Corporation
• Original Assignee: Shimadzu Corporation
• Inventors: SASAYAMA, Tomoki
• Granted Patent: US 10,161,872 B2
• Time in Patent Office: Days
• CPC Class Codes: G01N 2021/6463 Optics
• CPC Class Codes: G01N 21/645 Specially adapted constructive features of fluorimeters
• CPC Class Codes: G01N 2201/022 Casings
• CPC Class Codes: G01N 2201/025 Mechanical control of operations
• CPC Class Codes: G02B 26/023 comprising movable attenuating elements, e.g. neutral density filters
• CPC Class Codes: G02B 5/208 for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation

Abstract

An optical measuring device including a sample placement portion for a measurement sample to be placed therein; a light source portion for emitting a measurement beam toward the measurement sample that is placed in the sample placement portion; and a detector for detecting sample information from a measurement sample that is disposed in the sample placement portion; a cover portion that is able to open and close, for accessing the interior of the sample placement portion, is formed on the sample placement portion; an optical element member for not transmitting light of at least a prescribed wavelength band within the measurement beam; and a driving mechanism that is linked mechanically with the opening and closing of the cover portion to move the optical element member.

Claims

1. An optical measuring device comprising:

a sample placement portion for a measurement sample to be placed therein;

a light source portion for emitting a measurement beam toward a measurement sample that is placed in the sample placement portion; and

a detector for detecting sample information from a measurement sample placed in the sample placement portion, wherein;

a cover portion that can be opened and closed in order to access the interior of the sample placement portion is formed in the sample placement portion;

comprising;

an optical element member for not transmitting light of at least a prescribed wavelength band within the measurement beam; and

a driving mechanism for linking mechanically to the opening and closing of the cover portion, to move the optical element member, wherein;

the driving mechanism places the optical element member into the light path from the light source portion to the measurement sample when the cover portion is opened and places the optical element member outside of the light path from the light source portion to the measurement sample when the cover portion is closed.

2. An optical measuring device as set forth in claim 1, wherein:

the optical element member is able to revolve with one end portion as an axis of revolution;

the driving mechanism comprises a lever and a wire that connects one end portion of the lever and the optical element member; and

the other end portion of the lever is pressed by the cover portion when the cover portion is closed, and not pressed by the cover portion when the cover portion is opened.

3. An optical measuring device as set forth in claim 1, wherein:

the sample placement portion comprises a base plate having an opening portion, and a cover plate that can open and close a top face of the base plate, wherein;

the measurement sample is placed on the top face of the base plate so as to block the opening portion.

4. A safety device used in an optical measuring device, comprising:

a sample placement portion for a measurement sample to be placed therein;

a light source portion for emitting a measurement beam toward a measurement sample that is placed in the sample placement portion; and

a detector for detecting sample information from a measurement sample placed in the sample placement portion, wherein;

an optical element member for not transmitting light of at least a prescribed wavelength band within the measurement beam; and

a driving mechanism for linking mechanically to the opening and closing of the cover portion, to move the optical element member, wherein;

the driving mechanism places the optical element member into the light path from the light source portion to the measurement sample when the cover portion is opened and places the optical element member outside of the light path from the light source portion to the measurement sample when the cover portion is closed.