Optical Choppers and Optical Shutters Specifications

Help with Optical Choppers and Optical Shutters specifications:

Device Type

	Your choices are...
	Chopper		An optical chopper is a mechanical or electronic device for passing and then interrupting a beam of light for a known brief interval.
	Shutter		A shutter is a mechanical or electronic device used to control the amount of time that a light sensitive material is exposed to radiation.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
	Device Technology
	Your choices are...
	Mechanical		The chopper or shutter interrupts the light source by mechanical means, such as a tuning fork or a rotating shutter.
	Electro-optic		The chopper or shutter interrupts the light source by electro-optic means, such as liquid crystals.
	Other		Other unlisted, specialized, or proprietary device technologies.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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Performance

	Aperture:		The clear aperture of the device indicates the maximum size beam that the device can be used for.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
	Frequency Range:		The frequency range indicates the range of the number of interruptions per second the device can provide.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
	Shutter Speed:		The speed at which the shutter can be opened and closed.
	Search Logic:		All matching products will have a value less than or equal to the specified value.
	Response Time:		The time it takes for the device to start or stop operating.
	Search Logic:		All matching products will have a value less than or equal to the specified value.
	Operating Temperature:		The temperature range the device was designed to operate in.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.

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Power Requirements

	Power Type:
	Your choices are...
	AC		The device is AC powered.
	DC		The device is DC powered.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
	Voltage:		The voltage of the device.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

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Features

	Multiple Apertures?		The device has more than one aperture for a light beam to pass through.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
	Display?		The device comes with a display.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
	Variable Speed?		The device has multiple speed settings.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

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