英科光学

2.高/低通滤光片

高低通滤波片

Andover提供的高/低通滤光片，高通滤光片经常被称为（LWP)，低通滤光片也就是所说的（SWP)。高低通滤光片（紫外、近红外）基本上是一个改良过的四分之一波长多层膜，过滤器使用干扰效应，而不是仅仅使用吸收作用来隔离不需要的光谱带。因为该类滤光片随着入射角的增加将会产生微小的偏移，它们在微调截止波长方面是一个很好的选择。由于有着一层特殊的电解质镀膜，该种滤光片能够满足高质量的光学器件的要求，也可以承受日常的清洁。

可见光高通滤光片选型表：

Visible Long Wave Pass Filters

Part Numbers

50% Point

25mmØ

50mmØ

50mm sq

400nm

450nm

500nm

550nm

600nm

650nm

700nm

700FH90-50S

可见光低通滤光片选型表：
Visible Short Wave Pass Filters

550nm	550FL07-25	550FL07-50	550FL07-50S
600nm	600FL07-25	600FL07-50	600FL07-50S
650nm	650FL07-25	650FL07-50	650FL07-50S
700nm	700FL07-25	700FL07-50	700FL07-50S

近红外光高通滤光片选型表：
Near Infrared Long Wave Pass Edge Filters

Part Numbers

50% Point

25mmØ

50mmØ

50mm sq.

750nm

800nm

850nm

850FH90-50

850FH90-50S

900nm

950nm

1000nm

近红外光低通滤光片选型表：

Near Infrared Short Wave Pass Filters

Part Numbers

50% Point

25mmØ

50mmØ

50mm sq.

750nm

800nm

850nm

900nm

950nm

1000nm

2）、标准红外高通滤光片：

General Specifications

Diameter Tolerance:

+0/-.1mm

Thickness:

1.0mm ±0.2

Minimum Clear Aperture:

90% of O.D.

Substrate Material:

Silicon, Germainum or Sapphire

Flatness:

2 waves at 632.8nm

Parallelism:

<10 arc minutes

Surface Quality:

80/50 per MIL-C-48497A

Coating Quality:

80/50 per MIL-C-48497A

24-hour Humidity:

per MIL-C-48497A

Moderate Abrasion:

per MIL-C-48497A

Adhesion:

per MIL-C-48497A

Operating Temperature:

-62°C to +71°C

Transmission (Ave):

>90%

Rejection (Ave):

<0.1%

Mechanical:

Not mounted in metal holders

标准红外高通滤光片选型表：
Size, Shape & Part Number

5% point cut-on W/L

Slope

25mm ø

50mm ø

1.05µm ± 0.04µm

12%

1.05ILP-25

1.05ILP-50

1.65µm ± 0.07µm

2.40µm ± 0.09µm

3.60µm ± 0.14µm

4.50µm ± 0.18µm

7.30µm ± 0.29µm

3）、定制红外高/低通滤光片
General Specifications

Diameter Tolerance & Thickness:			As required
Minimum Clear Aperture:			90% of O.D.
Substrate Material:			Germainum, Sapphire or Zinc Selenide
Flatness:			2 waves at 632.8nm
Parallelism:			<10 arc minutes
Surface Quality:			60/40 per MIL-C-48497A
Coating Quality:			60/40 per MIL-C-48497A
24-hour Humidity:			per MIL-C-48497A
Moderate Abrasion:			per MIL-C-48497A
Adhesion:			per MIL-C-48497A
Operating Temperature:			-62°C to +71°C
Slope:			<6%
Transmission (Ave):			>90%
Rejection (Ave):			<0.1%
Mechanical:			Not mounted in metal holders
定制红外高通滤光片选型表：
5% point cut-on W/L	25mm ø			50mm ø
2.2µm - 5.0µm	IRLWP10-25			IRLWP10-50
5.1µm - 7.0µm	IRLWP12-25			IRLWP12-50
7.1µm - 11.0µm	IRLWP14-25			IRLWP14-50

定制红外低通滤光片选型表：
Size, Shape & Part Number
5% cut-off W/L		25mm ø			50mm ø
2.2µm - 5.0µm		IRSWP10-25			IRSWP10-50
5.1µm - 7.0µm		IRSWP12-25			IRSWP12-50
7.1µm - 11.0µm		IRSWP14-25			IRSWP14-50

4）Andover 高/低通滤光片Data sheet，请点击下载

5）相关产品：

CVI高/低通滤光片：截至波长覆盖了可见光以及近红外范围。请联系我们咨询。

Semrock高/低通滤光片：高性能，高可靠性。这些滤光片装有25mm黑色阳极化铝环，净口径至少达21mm，提供各种厚度。请登录网站查看：http://www.semrock.com/Products.aspx