バンドパス色付きガラスフィルター、マウント無し

Ø25 mm Rounds, 2" x 2" Squares, or 6" x 6" Squares
Economic Alternative to Thin-Film Interference Filters
Selection Available in Kits

FGB37S

(2" x 2")

FGUV5

FGB25

FGK01

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概要
Feedback

General Specifications
Size	Ø25 mm	2" x 2"	6" x 6"
Thickness	2 mm		3 mm
Surface Quality	40-20 Scratch-Dig
Surface Flatness	< λ @ 632.8 nm	< λ @ 632.8 nm over 1"
Tolerance	+0.0/-0.4 mm (Diameter)	+0.0/-0.4 mm (Length and Width of Square Filter)
Wedge	< 3 arcmin		< 5 arcmin
Clear Aperture	80% of Diameter	80% of Length and Width
Material	Schott^® Colored Glass

特長

バンドパス範囲240～1375 nm
Ø25 mm 円形、50.8 mm角正方形、152.4 mm角正方形フィルタから選択可
バンドパスとロングパスを組み合わせたフィルターキットもあり

バンドパス色付きガラスフィルタは、Schott^®社製の各種ガラスから製造され、幅広い用途でお使いいただけます。フィルタは円形もしくは正方形からお選びいただけます。Ø25 mm円形フィルタは当社の手動または電動フィルターホイールに適合します。また、レンズチューブに取り付けることもできます。Ø25 mmフィルタのシリーズは、マウント付きでもご用意しています。50.8 mm角のフィルタを取り付ける場合には、当社の固定式フィルターホルダからお選びください。152.4 mm角フィルタには、プレートホルダFP02のご使用をお勧めします。こちらに掲載されているバンドパスフィルタの他に、当社ではロングパス色付きガラスフィルタ製品も用意しています。ここに掲載されているフィルタよりも高い透過率をご希望される場合は、反射防止(AR)コーティング付きバンドパス色付きガラスフィルタをご用意しております。

当社のフィルタで使用されている色付きガラスのうちのいくつかは、特定の波長で蛍光性を持ちます。蛍光に敏感な用途には、当社の蛍光イメージングフィルタをご検討ください。狭帯域光源には誘電体バンドパスフィルタをお勧めします。

色付きガラスフィルターキット
当社ではもっともよくお使いいただいているバンドパスとロングパスを組み合わせたフィルターキットを2種類ご用意しています。各製品の詳細につきましては、このページの下方をご覧ください。

保管ケース
個別にお買い求めいただいたフィルタをご使用にならない時は、当社の保管ケースに保管いただくのが安全かつ便利です。この保管ケースはレンズキットに含まれる保管ケースと同じ製品です。マウント付きØ25 mm円形フィルタ用のボックス(KT01)とマウントなし50.8 mm角正方形フィルタ用のボックス(KT03)をご用意しています。

Colored Glass Selection Guide
Bandpass			Longpass		Color-Temperature-Balancing
Mounted	Unmounted	AR Coated	Mounted	Unmounted	Unmounted

Posted Comments:

MUHAMMED RASI MALACKOTH (posted 2025-01-31 13:48:44.29)

What is the damage threshold power for a 532 nm laser passing through an FGL590M long-pass filter?

jdelia (posted 2025-01-31 03:55:51.0)

Thank you for contacting Thorlabs. While we unfortunately have not characterized a damage threshold for these filters, I have contacted you directly over email to discuss your laser parameters to determine whether your beam would be suitable for this optic.

Alexander Jelzow (posted 2024-11-08 09:26:48.923)

Dear Thorlabs team, do you offer Hoya CM500 as an alternative to Schott BG39? Best regards, Alexander Jelzow

EGies (posted 2024-11-08 04:12:57.0)

Thank you for contacting Thorlabs. I have contacted you directly regarding this custom request.

Colin Black (posted 2024-04-19 10:44:04.88)

Hi there, I am interested in the laser damage threshold of the FGS900 filter?( or KG3 glass in general) We will be using the filter with a pulsed 1064 nm laser with a pulse energy of 0.92 mJ and a pulse duration of 16 ns. The beam diameter will be roughly 4 mm at the filter Look forward to hearing from you

cdolbashian (posted 2024-04-26 02:10:36.0)

Thank you for reaching out to us with this inquiry. Unfortunately, we do not have damage threshold data for these Schott-glass substrates. I have reached out to you directly to evaluate compatibility.

Anton Bykov (posted 2024-03-04 15:17:21.81)

The spectrum of FGB39 and FGB37 filters differs substantially from Schott reference spectra for the BG39 and BG40 filters. In fact, FGB37 most closely resembles BG60-61 filters from Schott catalogue. This does not seem to be a degradation issue, as measured spectra reproduce the Thorlabs reference well, but not the Schott reference. Is there an explanation to that?

cdolbashian (posted 2024-05-06 09:22:22.0)

Thank you for reaching out to us with this inquiry. The discrepancy comes down to the fact that Schott presents their transmittance graph with a log scale, while we use a linear scale. I was able to plot, and share with you, both of these graphs on the same scale and they looked identical.

S. Mohammad-Reza Taheri (posted 2020-08-19 09:06:33.18)

Is there any information about the damage threshold for the FGS900 filter?

YLohia (posted 2020-09-24 04:04:24.0)

Thank you for contacting Thorlabs. What beam parameter specs do you intend to use this filter with (Wavelength, CW or Pulsed, Average Power, Peak Power (if pulsed), Pulse width (if pulsed), Rep rate (if pulsed), Beam diameter)? I had requested this information from you via email at the time of your post. If you're still interested in this information, please email us at techsupport@thorlabs.com.

CARLOS MONTES (posted 2020-02-06 22:26:33.123)

Do you have adapters in order to mount this filter in a astrophotography camera which uses 1,25 inch filters?

YLohia (posted 2020-02-07 11:41:04.0)

Thank you for contacting Thorlabs. As of now, we do not offer such an adapter. I have reached out to you directly to discuss alternatives.

andrea.capozzi (posted 2016-10-05 07:58:50.033)

Dear ThorLab, I would like to perform some UV light illumination experiments. I have a broad-band source (300-450 nm) with an illumination circular spot of 7 mm of diameter. In order to fit the filter in my setup it has to be a circle of 7 mm diameter as well. Would it be possible to cut/mill/grind the 25 mm filters you sell (how resistent is the material)? In case I have to do it myself (and I wuld like to know how) or you can take care? Best Andrea Capozzi, PhD

jlow (posted 2016-10-05 02:04:55.0)

Response from Jeremy at Thorlabs: We can edge the filter down to the size you need. I will contact you directly about the quote.

mg9420 (posted 2016-08-02 13:05:23.407)

Hello ,Thorlab We are pleased to receive your letter We need some filters that diameter is half inch. Item Quantity 1.FGUV11-UV *2 2.FGL570 *2 3.NE02A-A *1 4.NENIR05B-C *1 We would like to make an inquiry. My company from Taiwan,Bolite Co., Ltd.

mg9420 (posted 2016-07-29 02:02:28.56)

In our experiment we need some bandpass colored glass filters that diameter is half inch. I want to customized it. Can you customized it for me?

beckham18274 (posted 2015-04-25 08:15:21.977)

Hi:) i have question! what is bandwidth of FGUV5? please tell me~~

jlow (posted 2015-04-28 03:54:14.0)

Response from Jeremy at Thorlabs: The transmission graph for each filter is located in the subgroup of each filter. There's also the raw data available for download. The shaded region, which denotes the spectral range for which the transmission is >50% of the maximum transmission, represents the range for which we recommend using this colored filter.

giuseppe.vitucci (posted 2015-01-15 04:02:14.807)

May I ask you an excel sheet with the values of trasmittance vs wavelength of the item FGB67?

jlow (posted 2015-01-15 01:15:41.0)

Response from Jeremy at Thorlabs: The raw data download link can be found right below the transmission graph for each filter.

bdada (posted 2011-11-15 18:29:00.0)

Response from Buki at Thorlabs: Thank you so much for participating in our Feedback Forum. You've provided us with some great product ideas that we intend to pursue. We can offer custom filters to meet your specifications and we will contact you directly to continue this discussion.

clarafly (posted 2011-11-10 17:35:53.0)

Do you offer the filter with BG39 color glass? The extinction of BG39 at long wavelength is much better than BG40. Some of the color glasses, such as BG39 and BG40, are quite sensitive to humidity. Can you offer color glass filters with AR coatings on both sides? The coatings can protect the color glasses from humidity and reduce the reflection loss at both surfaces at the same time.

Javier (posted 2010-06-23 09:54:07.0)

Response from Javier at Thorlabs to orevilla: The tolerance value of +0.0/-0.4 mm also applies to the thickness of the filter.

orevilla (posted 2010-06-23 06:50:27.0)

In the specs sheet of the FGS900S bandpass filter the thikness is 2mm with a tolerance of +0.0/-0.4mm. Is this correct? It is the same as the dimensional tolerance, but for the thikness is a 20% of variation (it seems to be very high). Thank you in advance for your time.

マウント無しØ25 mmバンドパスフィルタ

フィルターマウントもしくはレンズチューブに取付け可能
厚さ2 mmのSchott^®製色付きガラス製
SM1マウント付きもご用意しております。

Item # (Click for Photo)	Bandpass Region	Schott^® Glass #
FGS600	330 - 665 nm	HA5
FGB37	335 - 610 nm	BG40
FGB39	360 - 580 nm	BG39
FGB18	412 - 569 nm	BG18
FGB7	435 - 500 nm	BG7
FGV9	485 - 565 nm	VG9
FGB67	900 - 1375 nm	BG36

をクリックすると、プロット図やダウンロード可能なデータをご覧いただけます。

Item # (Click for Photo)	Bandpass Region	Schott^® Glass #
FGUV5	240 - 395 nm	UG5
FGUV11	275 - 375 nm	UG11
FGS550	304 - 785 nm	KG2
FGB25	315 - 445 nm 715 - 1095 nm	BG3
FGS900	315 - 710 nm	KG3
FGS580	315 - 725 nm	KG1
FGUV	325 - 385 nm	UG1

+1 数量資料 型番 - ユニバーサル規格 定価(税抜) 出荷予定日

FGUV5 Ø25 mm UG5 Colored Glass Bandpass Filter, 240 - 395 nm

￥13,030

Item # (Click for Photo)	Bandpass Region	Schott^® Glass #
FGS600S	330 - 665 nm	KG5
FGB37S	335 - 610 nm	BG40
FGB39S	360 - 580 nm	BG39
FGB18S	412 - 569 nm	BG18
FGB7S	435 - 500 nm	BG7
FGV9S	485 - 565 nm	VG9
FGB67S	900 - 1375 nm	BG36

Item # (Click for Photo)	Bandpass Region	Schott^® Glass #
FGUV5S	240 - 395 nm	UG5
FGUV11S	275 - 375 nm	UG11
FGS550S	304 - 785 nm	KG2
FGB25S	315 - 445 nm 715 - 1095 nm	BG3
FGS900S	315 - 710 nm	KG3
FGS580S	315 - 725 nm	KG1
FGUVS	325 - 385 nm	UG1

FGK01 Contents	FGK01S Contents	Bandpass Region or Cut-On Wavelength
FGS900M	FGS900S	315 - 710 nm
FGB37M	FGB37S	335 - 610 nm
FGUVM	FGUVS	325 - 385 nm
FGL400M	FGL400S	400 nm
FGL495M	FGL495S	495 nm
FGL550M	FGL550S	550 nm
FGL610M	FGL610S	610 nm
FGL715M	FGL715S	715 nm
FGL780M	FGL780S	780 nm
FGL850M	FGL850S	850 nm

バンドパス色付きガラスフィルター、マウント無し

特長

マウント無しØ25 mmバンドパスフィルタ

マウント無し50.8 mm角バンドパスフィルタ

マウント無し152.4 mm角バンドパスフィルタ

色付きガラスフィルターキット

フィルターキット保管ケース