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Apertures

不锈钢可变光阑
Variable slits with micrometer control

Motorized Variable Aperture



Actuator : Stepper motor
Aperture type : Circular
Aperture diameter : 2 mm to 11 mm (Adjustable via software or front panel)
Resolution : 1 mm
PC interface : RS232 / USB
Front panel LCD display shows aperture diameter
Front panel buttons for Open and Close function (1 mm on single press)


Pinholes - Mounted


Holmarc manufactures precision pinholes for spatial filtering and other similar applications. Standard pinholes are available in either copper or stainless steel substrates.



*Custom hole size can be provided.

HPRA - Series

Material : Copper

25 mm outer diameter

20 Micron thickness

Compatible with PHC - 3 pinhole cells


Model No. 大小 Price $
HPRA-3-5 5.0 μm +/- 1.0 μm 88.00
HPRA-3-10 10.0 μm +/- 1 μm 88.00
HPRA-3-15 15.0 μm +/- 1.5 μm 92.00
HPRA-3-20 20 μm +/- 2 μm 88.00
HPRA-3-25 25 μm +/- 2 μm 92.00
HPRA-3-30 30 μm +/- 2 μm 88.00
HPRA-3-35 35 μm +/- 2 μm 88.00
HPRA-3-50 50 μm +/- 2 μm 92.00
HPRA-3-100 100 μm +/- 2 μm 92.00
HPRA-3-200 200 μm +/- 2 μm 92.00

PIN - H - Series

Material : Stainless Steel

9.35 mm outer diameter

20 Micron thickness

Compatible mounts available


Model No. Siz e Price $
PIN-H-025 0.25 mm 24.00
销- h - 050 0.50 mm 24.00
PIN-H-075 0.75 mm 24.00
PIN-H-100 1.00 mm 24.00
PIN-H-200 2.00 mm 24.00
PIN-H-300 3.00 mm 24.00

PINH - Series

Material : Stainless Steel

25 mm outer diameter

20 Micron thickness

Compatible with PHC - 3 pinhole cells


Model No. 大小 Price $
PINH-5.0 5.0 μm +/- 1.0 μm 46.00
PINH-10 10.0 μm +/- 1 μm 46.00
PINH-15 15.0 μm +/- 1.5 μm 46.00
PINH-20 20 μm +/- 2 μm 46.00
PINH-25 25 μm +/- 2 μm 46.00
PINH-30 30 μm +/- 2 μm 46.00
PINH-35 35 μm +/- 2 μm 46.00
Pinhole Cells

Model No : PHC - 3Price - $ 15.00


These pinhole cells are suitable for 25 mm dia. mounted pinholes. It can be used with rigid, kinematic, XY, XYZ and 5axis stages. The cell comes with standard RMS thread for fixing to various mounts.


RMS external thread

Material : Aluminium

Finish : Black anodized




Round Apertures - AS Series



These apertures are made in aluminium substrate and finished by black anodizing. The aperture can be mounted to our standard RLM-25 lens mount.



Material : aluminium

Finish : black anodized

25 mm outer diameter
0.5 mm thickness

Compatible with RLM - 25 mount



Model No. Diameter D Price $
AS - 0.5 0.5 mm 11.00
AS - 1 1 mm 11.00
AS - 2 2 mm 11.00
AS - 3 3 mm 11.00
AS - 4 4 mm 11.00
AS - 5 5 mm 11.00
AS - 6 6 mm 11.00
AS - 7 7 mm 11.00
AS - 8 8 mm 11.00
AS - 9 9 mm 11.00
AS - 10 10 mm 11.00

Compatible mounts are available for other standard / custom pinholes


Variable Aperture
Std Variable Round Aperture - SSID Series

Holmarc manufactures variable aperture in four different sizes. These are precision devices which offer near perfect circular apertures.




Made of brass and aluminium

Leaves made of spring steel

Compatible with MSSID Series mounts

Black anodized finish for casing

Black zinc finish for leaves


Model No. Max Aperture Min Aperture D ( mm ) Thickness ( mm ) Price $
SSID-12 12 mm 0.8 mm 19.8 5.0 42.00
SSID-20 20 mm 0.8 mm 30 5.5 45.00
SSID-25 25 mm 0.8 mm 37 5.5 49.00
SSID-37 37 mm 1.2 mm 53 6.0 64.00
SSID-50 50 mm 2 mm 70 7.5 103.00

Std Variable Round Aperture Mount - MSSID Series

These mounts are specially suited for Holmarc’s variable apertures. There is M6 tapped hole at the bottom for post mounting.






Aluminium alloy construction

M6 mounting hole

Black anodized finish

Compatible with SSID series apertures


Model No. D ( mm ) t ( mm ) d ( mm ) Suitable Aperture Model Price $
MSSID-12 19.8 8.0 35.8 SSID-12 15.00
MSSID-20 30 9.0 50.0 SSID-20 18.00
MSSID-25 37 8.5 53.0 SSID-25 19.00
MSSID-37 53 9.0 69.0 SSID-37 21.00
MSSID-50 70 10.5 86.0 SSID-50 25.00

不锈钢可变光阑and compatible mounts are available


Std Variable Slit - SVRA Series

生产的变量缝Holmarc microme新万博网页登录最精准ter drive which shows slit opening directly on the graduations.








Model No. Price $
SVRA 172.00


Slit has 15mm length

0-2 mm opening

Opens equally from center

Polished steel blades

M6 mounting hole

Post mountable

Aluminum alloy construction

Black anodized finish
Spatial Filter Mount - Laser Fiber Coupler SFAS Series

All the translation movements (Z axis stage as well as two X-Y positioners) are provided with preloaded ball bearing guide ways for play less and stick-slip free positioning.





Model No. Price $
SFAS 205.00
SFAS - VC -

Note: Pinholes and microscope objectives are sold separately


Laser Fiber Coupler

All the translation movements (Z axis stage as well as two X-Y positioners) are provided with preloaded ball bearing guide ways for play less and stick-slip free positioning.







Model No Connector Type Price $
LFC - 1 Fiber Chuck (FC1) 266.00
LFC - 1 FC FC, Connector 274.00


3 mm XY adjustment

10 mm linear movement

Fiber Chuck / FC Connector Compatible

Compatible with std microscope objective

M6 mounting hole

Post / base mountable

Black anodized finish




Pinholes PINH-Series 10

Model No. PINH - 10
$ 36.29
Pinholes PINH-Series 15

Model No. PINH - 15
$ 35.68
Pinholes PINH-Series 20

Model No. PINH - 20
$ 36.29
Pinholes PINH-Series 30

Model No. PINH - 30
$ 36.29
Pinholes PINH-Series 40

Model No. PINH - 40
$ 36.29
Pinholes PINH-Series 50

Model No. PINH - 50
$ 36.29
Pinholes PIN-H-Series 025

Model No. PIN-H-025
$ 30.25
Pinholes PIN-H-Series 050

Model No. PIN-H-050
$ 30.25
Pinholes PIN-H-Series 075

Model No. PIN-H-075
$ 30.25
Variable Round Aperture With Mount 25

Model No. SSID-25 MSSID-25
$ 59.50


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