Spectroscopic measurement device and spectroscopic measurement method
First Claim
1. A spectroscopic measurement device comprising:
- a first substrate;
a second substrate opposed to the first substrate;
a first reflecting film provided to the first substrate;
a second reflecting film provided to the second substrate, and opposed to the first reflecting film across a predetermined gap;
a gap amount changing section adapted to change the gap amount of the gap by deflecting the second substrate by applying a continuously varying analog voltage;
a detection section adapted to detect a light intensity of light interfered between the first reflecting film and the second reflecting film;
a filter drive section adapted to apply the continuously varying analog voltage to the gap amount changing section;
a voltage monitoring section adapted to monitor the continuously varying analog voltage applied to the gap amount changing section;
a storage section adapted to store V-λ
data corresponding to a relationship between the continuously varying analog voltage applied to the gap amount changing section and a wavelength of the light taken out by the first reflecting film and the second reflecting film; and
a light intensity acquisition section adapted to obtain the light intensity detected by the detection section at a timing at which the light taken out by the first reflecting film and the second reflecting film has a measurement target wavelength based on the continuously varying analog voltage monitored by the voltage monitoring section.
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Accused Products
Abstract
A spectroscopic measurement device includes a variable wavelength interference filter provided with a first reflecting film, a second reflecting film, and an electrostatic actuator for changing a gap amount of a gap between the first reflecting film and the second reflecting film, a detection section adapted to detect the light intensity of the light taken out by the variable wavelength interference filter, a voltage setting section and a voltage control section for applying an analog voltage varying continuously to the electrostatic actuator, a voltage monitoring section for monitoring the voltage applied to the electrostatic actuator, a storage section for storing V-λ data, and a light intensity acquisition section for obtaining the light intensity detected by the detection section at a timing at which the light transmitted through the variable wavelength interference filter has the measurement target wavelength based on the voltage monitored by the voltage monitoring section.
49 Citations
11 Claims
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1. A spectroscopic measurement device comprising:
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a first substrate; a second substrate opposed to the first substrate; a first reflecting film provided to the first substrate; a second reflecting film provided to the second substrate, and opposed to the first reflecting film across a predetermined gap; a gap amount changing section adapted to change the gap amount of the gap by deflecting the second substrate by applying a continuously varying analog voltage; a detection section adapted to detect a light intensity of light interfered between the first reflecting film and the second reflecting film; a filter drive section adapted to apply the continuously varying analog voltage to the gap amount changing section; a voltage monitoring section adapted to monitor the continuously varying analog voltage applied to the gap amount changing section; a storage section adapted to store V-λ
data corresponding to a relationship between the continuously varying analog voltage applied to the gap amount changing section and a wavelength of the light taken out by the first reflecting film and the second reflecting film; anda light intensity acquisition section adapted to obtain the light intensity detected by the detection section at a timing at which the light taken out by the first reflecting film and the second reflecting film has a measurement target wavelength based on the continuously varying analog voltage monitored by the voltage monitoring section. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A spectroscopic measurement device comprising:
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a first reflecting film and a second reflecting film opposed to each other across a gap; a gap amount changing section adapted to change a gap amount of the gap; a detection section adapted to detect a light intensity of light interfered between the first reflecting film and the second reflecting film; a filter drive section adapted to apply a continuously varying analog voltage to the gap amount changing section; a voltage monitoring section adapted to monitor the continuously varying analog voltage applied to the gap amount changing section; a storage section adapted to store V-λ
data corresponding to a relationship between the continuously varying analog voltage applied to the gap amount changing section and a wavelength of the light taken out by the first reflecting film and the second reflecting film; anda light intensity acquisition section adapted to obtain the light intensity detected by the detection section at a timing at which the light taken out by the first reflecting film and the second reflecting film has a measurement target wavelength based on the continuously varying analog voltage monitored by the voltage monitoring section. - View Dependent Claims (9, 10)
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11. A spectroscopic measurement method comprising:
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changing a gap amount of a gap between a first reflecting film and a second reflecting film by applying a continuously varying analog voltage to a gap amount changing section; detecting a light intensity of light interfered between the first reflecting film and the second reflecting film; monitoring the applied continuously varying analog voltage to obtain a monitored voltage; determining a timing at which the light interfered between the first reflecting film and the second reflecting film has a measurement target wavelength based on the monitored voltage; and obtaining the detected light intensity at the timing.
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Specification