The SH-35 model, a compact and cost-effective mechanical light shutter/chopper, boasts ultra-low vibration characteristics. It operates seamlessly on optical tables, making it an invaluable component for vibration-sensitive environments. Whether integrated into instruments or OEM products, this device stands out for its ease of use and exceptional cost-effectiveness, particularly in high-volume applications.
In addition to its function as a mechanical light shutter, the SH-35 excels as a low-frequency optical chopper, offering frequencies ranging from DC to 50Hz.
Aperture Size | 0.35" (9mm) diameter |
Frequency Range | DC to 50 Hz |
Response Time | 5 mSec (from open to close position, and vice-versa) |
External input | TTL level (high = open, low = closed) |
Frequency stability | 0.1% min in internal mode, 0.005% min in external mode |
External Input | DC to 50Hz TTL level input; 5V ("OPEN") to open the shutter; 0V ("GND") to close the shutter |
Settling Time to External TTL Input | 5 mSec |
Monitor output | TTL level (high = open, low = closed) |
Operating temperature | 0 to 65 °C |
Dimensions | 3.93" x 2.6" for PCB version 5.3" × 5.3" × 2" for cased versions |
The purpose-built DSH-35 driver provides precise control over the SH-35 shutter/chopper. It operates in two distinct modes:
Example 1: Part No. SH-35 with DSH-35-PC This part number specifies the model SH-35 shutter, with a 0.010" thick black anodized aluminum blade and a front plate for horizontal and vertical mounting. The DSH-35 driver is a 3.93" x 2.6" populated printed circuit board driver, operating from an external 15 VDC power supply.
Example 2: Part No. SH-35-M with DSH-35-220-BNC This part number specifies the model SH-35 shutter, with a 0.010" thick aluminum blade and base for horizontal and vertical mounting, without a front plate. The DSH-35 driver is cased (5.3" x 5.3" x 2") 220VAC, with a selector switch for operating from a line voltage of 220Vac, with a BNC connector for TTL input.
Example 3: Part No. SH-35-MP-BRIGHT with DSH-35-110 This part number specifies the model SH-35 shutter, with a 0.010" thick bright nickel plated aluminum blade. The DSH-35 driver is cased 5.3" x 5.3" x 2", operating from a line voltage of 110 VAC.
Example 4: Part No. SH-35-S-BARE with DSH-35-110/220-BNC This part number specifies the SH-35 shutter with #2-56 threaded standoffs and a 0.010" thick bare aluminum blade. The DSH-35 driver is cased 5.3" x 5.3" x 2", with a selector switch to operate from either 110 VAC or 220 VAC line voltage with a BNC connector for TTL input.