Multireflection cell, analyzer, exhaust gas analyzer, and light incident method
First Claim
1. A multireflection cell comprising:
- a multireflection mechanism includinga field mirror defininga light incident port adapted to introduce incident light into the multireflection mechanism, wherein the multireflection mechanism is adapted to multiply the incident light reflected therein to generate multiplied reflected incident light, anda light emitting port adapted to emit outward the multiplied reflected incident light, wherein an arrangement interval between adjacent ones of multiple reflection points formed on a reflecting surface of the field mirror is adapted to be larger in an outer edge part of the reflecting surface than a central part,a first objective mirror facing the field mirror and provided on a same side of the multireflection mechanism as the light incident port, anda second objective mirror facing the field mirror, provided on a same side of the multireflection mechanism as the light emitting port, and adapted to first reflect the incident light.
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Accused Products
Abstract
In order to provide a multireflection cell making it possible to decrease the volume of a cell main body into which measurement target gas is introduced as well as reducing the amount of light that is lost without being reflected in a multireflection mechanism, the multireflection cell includes the multireflection mechanism adapted to multiply reflect incident light and then emit the multiply reflected light outward. In addition the multireflection mechanism includes a field mirror, a first objective mirror that faces to the field mirror and is provided on a light incident side in the multireflection mechanism, and a second objective mirror that faces to the field mirror and is provided on a light emitting side in the multireflection mechanism. Further, the light incident into the multireflection mechanism is configured to be first reflected by the second objective mirror.
12 Citations
9 Claims
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1. A multireflection cell comprising:
a multireflection mechanism including a field mirror defining a light incident port adapted to introduce incident light into the multireflection mechanism, wherein the multireflection mechanism is adapted to multiply the incident light reflected therein to generate multiplied reflected incident light, and a light emitting port adapted to emit outward the multiplied reflected incident light, wherein an arrangement interval between adjacent ones of multiple reflection points formed on a reflecting surface of the field mirror is adapted to be larger in an outer edge part of the reflecting surface than a central part, a first objective mirror facing the field mirror and provided on a same side of the multireflection mechanism as the light incident port, and a second objective mirror facing the field mirror, provided on a same side of the multireflection mechanism as the light emitting port, and adapted to first reflect the incident light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A light incident method making light incident into a multireflection mechanism that includes (i) a field mirror defining a light incident port adapted to introduce incident light into the multireflection mechanism, wherein the multireflection mechanism is adapted to multiply the incident light reflected therein to generate multiplied reflected incident light, and a light emitting port adapted to emit outward the multiplied reflected incident light, (ii) a first objective mirror facing the field mirror and provided on a same side of the multireflection mechanism as the light emitting port, and (iii) a second objective mirror facing the field mirror and provided on a same side of the multireflection mechanism as the light emitting port, the light incident method comprising:
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making the light incident into the multireflection mechanism such that the incident light is first reflected by the second objective mirror; and making an arrangement interval between adjacent ones of multiple reflection points formed on a reflecting surface of the field mirror larger in an outer edge part of the reflecting surface than a central part.
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Specification