Updated:2024-12-12
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Miniature Mechanical Light Shutter/Chopper for Ultra-Low Vibration and Precision Optics
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.
Versatile Functionality
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.
DSH-35 Driver: Tailored Control for Model SH-35 Shutter/Chopper
The purpose-built DSH-35 driver provides precise control over the SH-35 shutter/chopper. It operates in two distinct modes:
Internal Mode: Utilize the SH-35 as an optical chopper, with adjustable chopping frequencies ranging from 0.5Hz to 50Hz, controlled by the internal oscillator.
External Mode: Employ the SH-35 as either an optical shutter or chopper. A TTL input manages the blade position, with "High" (5V) keeping the shutter open and "Low" (0V) keeping it closed. The shutter responds swiftly to the TTL input within 5 milliseconds. The maximum TTL input frequency supported is 50Hz.
Ordering Information
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.
Features and Advantages
Ultra low vibration optical shutter
Aperture size: 0.35" (9mm) dia.
No clicking or knocking noise (no hard stop)
Does not create shock and vibration
5 mSec response time
Can be used as a low frequency chopper
DC to 50 Hz frequency response
Can be stopped in the open or close position
Long life: 100 million cycles min.
Jitter free operation
Dark blade, bright optional
Low cost
Simple to operate
Miniature size
Easy to integrate into OEM products
Special OEM pricing
Drawings
SH-35
SH-35-M
SH-35-S
Technical Specifications
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 |
Product Options
SH-35 | Shutter is mounted on a base with a front plate and allows horizontal and vertical mounting. |
SH-35-M | Shutter comes with a base without a front plate and allows horizontal and vertical mounting. |
SH-35-S | Shutter is mounted with #2-56 threaded standoffs. |
-BARE | Shutter blade is bare aluminum. |
-BRIGHT | Shutter blade is bright nickel plated aluminum. |
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