Optomechanics
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.
HPRA - Series
Material : Copper
25 mm outer diameter
20 Micron thickness
Compatible with PHC - 3 pinhole cells
| Model No. | Size | Price |
| HPRA-3-5 | 5.0 μm +/- 1.0 μm | |
| HPRA-3-10 | 10.0 μm +/- 1 μm | |
| HPRA-3-15 | 15.0 μm +/- 1.5 μm | |
| HPRA-3-20 | 20 μm +/- 2 μm | |
| HPRA-3-25 | 25 μm +/- 2 μm | |
| HPRA-3-30 | 30 μm +/- 2 μm | |
| HPRA-3-35 | 35 μm +/- 2 μm | |
| HPRA-3-50 | 50 μm +/- 2 μm | |
| HPRA-3-100 | 100 μm +/- 2 μm | |
| HPRA-3-200 | 200 μm +/- 2 μm |
PIN - H - Series
Material : Copper
9.35 mm outer diameter
20 Micron thickness
Compatible mounts available
| Model No. | Siz e | Price |
| PIN-H-025 | 0.25 mm | |
| PIN-H-050 | 0.50 mm | |
| PIN-H-075 | 0.75 mm | |
| PIN-H-100 | 1.00 mm | |
| PIN-H-200 | 2.00 mm | |
| PIN-H-300 | 3.00 mm |
PINH - Series
Material : Copper
25 mm outer diameter
20 Micron thickness
Compatible with PHC - 3 pinhole cells
| Model No. | Size | Price |
| PINH-5.0 | 5.0 μm +/- 1.0 μm | |
| PINH-10 | 10.0 μm +/- 1 μm | |
| PINH-15 | 15.0 μm +/- 1.5 μm | |
| PINH-20 | 20 μm +/- 2 μm | |
| PINH-25 | 25 μm +/- 2 μm | |
| PINH-30 | 30 μm +/- 2 μm | |
| PINH-35 | 35 μm +/- 2 μm |
Pinhole Cells
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.
| Model No. | Diameter D | Price |
| AS - 0.5 | 0.5 mm | |
| AS - 1 | 1 mm | |
| AS - 2 | 2 mm | |
| AS - 3 | 3 mm | |
| AS - 4 | 4 mm | |
| AS - 5 | 5 mm | |
| AS - 6 | 6 mm | |
| AS - 7 | 7 mm | |
| AS - 8 | 8 mm | |
| AS - 9 | 9 mm | |
| AS - 10 | 10 mm |
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 | |
| SSID-20 | 20 mm | 0.8 mm | 30 | 5.5 | |
| SSID-25 | 25 mm | 0.8 mm | 37 | 5.5 | |
| SSID-37 | 37 mm | 1.2 mm | 53 | 6.0 | |
| SSID-50 | 50 mm | 2 mm | 70 | 7.5 |
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 | |
| MSSID-20 | 30 | 9.0 | 50.0 | SSID-20 | |
| MSSID-25 | 37 | 8.5 | 53.0 | SSID-25 | |
| MSSID-37 | 53 | 9.0 | 69.0 | SSID-37 | |
| MSSID-50 | 70 | 10.5 | 86.0 | SSID-50 |
Stainless steel variable apertures and compatible mounts are available
Std Variable Slit - SVRA Series
Variable slits manufactured by Holmarc has micrometer drive which shows slit opening directly on the graduations.
| Model No. | Price |
| SVRA |
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 | |
| 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.
3 mm XY adjustment| Model No | Connector Type | Price |
| LFC - 1 | Fiber Chuck (FC1) | |
| LFC - 1 FC | FC, Connector |
Established in 1993, Holmarc Opto-Mechatronics Ltd manufactures variety of scientific and engineering instruments for research, industry and education.
ISO 9001:2015 Made in INDIA
CIN : L33125KL1993PLC006984
GST No : 32AAACH9492C1ZQ
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Get in Touch
B.7., H.M.T. Industrial Estate
H.M.T. P.O, Kalamassery, Kochi
Kerala, India - 683 503
+91 920-719-7772 / 6 / 1
sales@holmarc.com
Mon - Sat : 9 am to 5 pm
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