OPTICAL BEAM MEASUREMENT OPTICS / NFP&FFP SIMULTANEOUS MEASUREMENT & ANALYSIS
M-Scope type DSynos

NFP/FFP SIMULTANEOUS MEASUREMENT OPTICS

Realize simultaneous observation and analysis of NFP and FFP by single optical unit.

M-Scope type D realizes simultaneous observation and analysis of NFP and FFP by asingle optical unit. M-Scope type D has NFP measurement port and FFP measurement
port in single optical base, and no need to switch the optics during each measurement.
【Features】○Simultaneous analysis of NFP and FFP by a single optical unit.
○Specially designed optics for real-time observation and analsis of NFP/FFP○Long working distance of approx. 17mm when measuring FFP○Possible to measure in 400nm to 1700nm wavelength range by selecting detector.
○High-performance NFP/FFP simultaneous measurement system can be constructed byusing Synos' optical beam analysis module AP013 together.
【Summary of speciﬁcations】○NFP/FFP measurement common speciﬁcations●Objective lens:
M-Plan Apo NIR 50x (ﬁxed)●W.D.:
17mm●Objective lens change: By manual revolver＊Objective lenses with various magniﬁcations can be used only during NFPmeasurement.

○NFP measurement port
●Intermediate lens:
1×●Maximum optical magniﬁcation: 50×●Epi-illumination:Option●Attenuate:
By neutral density ﬁlter●Camera mount:
C mount○FFP measurement port
●Measurement spectral range
Please specify the measurement wavelength because
appropriate AR coating is required for optical path splitting
half mirror of NFP/FFP port.
●Attenuate:
By neutral density ﬁlter●Camera mount:
C mount【Standard component】○Main optics:
1○Optics base:
1【Option】○Option for M-Scope type D optics●2× intermediate lens port MS-OP011-RL2
Intermediate lens unit that doubles the overall magniﬁcationof the optical system. (up to 100× with 50× objective lens）●1/2× intermediate lens port MS-OP011-RLH
Intermediate lens unit that halves the overall magniﬁcationof the optical system.
●Coaxial epi-illumination port MS-OP011-CEP
Coaxial epi-illumination port with removable half mirror.
〇Accessories for optics●Objective lens, ND ﬁlter, coaxial epi- illumination light source,optics bench, etc.

【Available detectors selection】○for 400~1100nm: Hi-resolution CMOS detector ISA071, ISA071GL○for 950~1700nm: InGaAs NIR detector ISA041H2○for 400~1700nm: InGaAs NIR derector ISA041HRA☞Regarding the ﬁeld of view and pixel resolution during NFP measurement
and the measurement angle coverage and pixel resolution during FFP
measurement by the detector used, please refer to P50【Detector selection
and NFP/FFP simultaneous measurement speciﬁcations】☞Technical Information 【Principle of NFP/FFP simultaneous measurement】
In M-Scope type D, FFP is measured using objective lens. In the ﬁgure on theleft, the luminous ﬂux emitted from the emitting point is incident on the objective
Objective lens
Focusinglens
Detector for NFP
Emitting
lens and then the optical path is split by the half mirror. The light ﬂux that has
pointpassed through the half mirror advances to the NFP port side and is imaged onHalf mirror
the NFP measurement detector via the focusing lens. On the other hand, the lightﬂux reﬂected by the half mirror advances to the FFP port side and is imaged on
the FFP measurement detector via the FFP relay lens. In this way, NFP and FFP
images obtained from each port branched into two optical paths are analyzed by
Relay lens for
FFP port
image processing, and NFP/FFP measurement are realized with a single opticalunit. Since this optics uses objective lens to measure NFP/FFP, the diameter ofthe light ﬂux to be measured is very narrow (about 100 μm), it is necessary toadjust the position and focus on the NFP image. Additionally, the measurement
wavelength is limited because appropriate AR coating is required for optical path
Detector for FFP
splitting half mirror of NFP/FFP port. These are major diﬀerences from the FFP
measurement method using f-θ lens.
【Diﬀerences in methods and advantages and disadvantages of optical method FFP measurement】
Meas. Method
OpticsAdvantage
Disadvantage
f -θ lens method M-Scope type F○Basic method of FFP analysis by optics●Cannot observe real image
M-Scope type FW○No need for strict focus adjustment●Short W.D. of approx. 6mmetc.
〇Wide angle coverage of approx. ±40 °●Possible to secure wide measurement spectral range
Objective lens
M-Scope type D〇Enables NFP/FFP analysis in single optics ●Strict focus & position adjustment is required
method〇Can observe real image by NFP image●Nallow angle coverage of approx. ±24.5°〇Long W.D. of approx. 17mm
●Accuracy on the wide-angle side deteriorates●Measurement wavelength is limited due to the use ofHM. Aﬀected by interference due to half mirror.

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