Knight Optical’s iris diaphragms offer dynamic control of beam width and light throughput in optical systems. These sprung steel leaf iris diaphragms are available in fully closing and part closing types with open apertures up to 300mm. Each aperture is supplied in a high quality blackened brass body to absorp unwanted light and reduce the impact of reflection on the rest of the system.
Sprung steel leafed iris diaphragms are supplied with absorptive black leaves to minimise reflection.
These iris diaphragms are perfect for manual control of the input beam. For fixed aperture sizes we recommend Knight Optical's range of high precision pinhole and slit apertures that offer improved repeatability and accuracy.
Knight Optical also offers an extensive custom optic service thanks to our many years of experience in the industry. Our apertures can be manufactured to any size or shape to suit your application. More information is available by contacting our technical sales team directly.
Smaller and larger size iris diaphragms available.
Mounting options available.
| Name | Maximum Aperture (mm) | Minimum Aperture (mm) | Outer Diameter (mm) | Thickness (mm) | Number of Leaves | Pin Length (mm) | Price | Buy |
| GIQ0510 | 5 | 0.6 | 10 | 4.5 | 6 | 7.5 |
US$102.58
|
|
| GIQ0815 | 8 | 0.8 | 14.8 | 4.5 | 8 | 7 |
US$49.48
|
|
| GIF1221 | 12 | 0 | 21 | 6.2 | 10 | 11.8 |
US$77.98
|
|
| GIQ1220 | 12 | 1 | 19.8 | 5 | 10 | 11.5 |
US$44.48
|
|
| GIQ2524 | 15 | 1.2 | 24 | 5 | 12 | 11.3 |
US$47.96
|
|
| GIQ1828 | 18 | 1.2 | 28 | 5 | 12 | 13.3 |
US$51.29
|
|
| GIQ2030 | 20 | 1.2 | 30 | 5.5 | 12 | 13.2 |
US$52.82
|
|
| GIQ2233 | 22 | 1.4 | 33 | 5.5 | 14 | 13.3 |
US$54.21
|
|
| GIF2538 | 25 | 0 | 38 | 6.1 | 14 | 12.8 |
US$91.88
|
|
| GIQ2537 | 25 | 1.4 | 37 | 5.5 | 14 | 12.9 |
US$55.60
|
|
| GIQ2840 | 28 | 1.5 | 40 | 5.5 | 16 | 12.6 |
US$60.05
|
|
| GIQ4230 | 30 | 1.5 | 42 | 6 | 16 | 12.4 |
US$66.44
|
|
| GIQ5036 | 36 | 1.9 | 50 | 6 | 16 | 12.5 |
US$73.81
|
|
| GIF3754 | 37 | 0 | 54 | 7.5 | 16 | 12.6 |
US$123.02
|
|
| GIQ5541 | 41 | 2 | 55 | 6.5 | 18 | 12.5 |
US$81.87
|
|
| GIQ4258 | 42 | 2 | 58 | 6.5 | 18 | 12.7 |
US$94.10
|
|
| GIQ5070 | 50 | 2.5 | 70 | 7.5 | 16 | 15 |
US$158.88
|
|
| GIQ5880 | 58 | 3 | 80 | 8 | 18 | 14.3 |
US$181.40
|
|
| GIQ9270 | 70 | 4.5 | 92 | 9.0 | 20 | 13.5 |
US$241.86
|
|
| GIQ75100 | 75 | 4.5 | 100 | 9 | 20 | 14.2 |
US$263.27
|
|
| GIQ11080 | 80.5 | 4.5 | 110 | 10 | 16 | 13 |
US$286.48
|
|
| GIQ12090 | 90 | 5 | 120 | 12 | 20 | 13.4 |
US$342.91
|
|
| GIQ13098 | 98 | 5 | 130 | 12 | 20 | 20 |
US$384.89
|
|
| GIQ140104 | 104 | 5 | 140 | 11 | 16 | 19.8 |
US$417.00
|
|
| GIQ150110 | 110 | 6 | 150 | 13 | 20 | 20.3 |
US$403.10
|
|
| GIQ120165 | 120 | 6 | 165 | 15 | 18 | 19.5 |
US$417.00
|
|
| GIQ180138 | 138 | 11.5 | 180 | 13 | 20 | 19.1 |
US$632.45
|
|
| GIQ208158 | 158 | 11 | 208 | 16 | 20 | 20.5 |
US$569.90
|
|
| GIQ225300 | 225 | 12 | 300 | 19 | 18 | 40.5 |
US$618.55
|
