Slotted optical switches (also called opto switches) are devices that provide status indications (on or off) when light beams are interrupted in various types of instruments, systems and equipment.
The switches contain phototransistors, which are illuminated by infrared light from the LEDs. The illumination causes the phototransistors to conduct. If objects are then placed into the slots between the transistors and the LEDs, the interruption of the light beams causes the transistors to switch off.
Optical slotted switches may also house rotating discs with holes around the rims. These holes spin within the light paths of the switches to create on and off pulses and direct the speed of the spinning discs.
What are slotted optical switches used for?
Slotted optical switches are used in assembly line production systems, machine automation and machine safety indicators.
The switches are standard in computer peripherals like printers, where the projection images get interrupted when they reach the end of their travel.
Types of slotted optical switches
Slotted optical switches are classified by their output mechanisms (buffers, inverters, interrupters), mounting types (through hole, panel, surface) and the number of pins located on the switches.
Description:
Box joint constructionSelf-gripping jaws on pipes and nuts
operated with one-handed downward pressurePatented parallel jaw design, grips the hex by four sides not just two eliminating nut burringPlastic Handle Grip MaterialDIN5231D.
Description:
Manufactured using immersed insulation process. Soft cushioned grip.
Excellent mechanical and electrical properties over temperature range -25°C to +70°C. Tested to 10 000V. Insulation material positively bonded to tools and tested at tensile load of 500N after storage for 168 ...
Description:
Automatic adjustment in use by simply by squeezing
the handles - ideal for frequent changes of work-piece sizeSingle-handed operation for left and right-handed usersSelf-locking action prevents slipping and reduces force required Locking lever for space-saving closed-handle transportation and storageHigh-stability ...
Description:
Very good access in restricted spaces due to
long, narrow jaws and slim head design19-step pushbutton adjustmentSelf-locking action prevents slipping and reduces force required High-stability double guide box-joint constructionMade from chrome-vanadium alloy steel, oil-hardened and tempered Gripping surfaces with ...
