Help with Long Pass Filters and Short Pass Filters specifications:
Filter Type
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Your choices are... | |||
Short Pass Filters | Short pass filters transmit a wide spectral band of short-wavelength radiation and block long-wave radiation. | ||
Long Pass Filters | Long pass filters transmit a wide spectral band of long-wavelength radiation while blocking short-wavelength 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. | ||
Filter Geometry
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Filter Shape: | Filters can either come round, square, or rectangular. | ||
Your choices are... | |||
Circular | The filter is circular. | ||
Square | The filter is square-shaped. | ||
Rectangular | The filter is rectangle-shaped. | ||
Other | Other unlisted, specialty, or proprietary filter shape. | ||
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. | ||
Diameter, Square Side, or Rectangular Length: | If the filter is circular, the diameter. If the filter is square, the length of a side. If the filter is rectangular, the length of its largest side. | ||
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. | ||
Rectangular Width: | If the filter is rectangular, the length of its shorter side. | ||
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. | ||
Thickness: | The thickness of the filter. | ||
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. | ||
Cut-on / Cut-off Wavelength
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Cut-on / Cut-off Wavelength: | The cut-on wavelength is where the long pass filter stops reflecting and starts transmitting. The cut-off wavelength is where the short pass filter stops transmitting and starts reflecting. | ||
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. | ||
Wavelength Range
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Transmission Range: | The area of the spectrum where the filter transmits. | ||
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. | ||
Rejection Range: | The area of the spectrum where the filter does not transmit. | ||
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. | ||
Filter Surface Quality
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Surface quality of the filter glass. | |||
Your choices are... | |||
10-5 Scratch / Dig | A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 10 / 5 indicates the average diameter of the digs to be .05 mm and the average length of a scratch is .10 mm. | ||
20-10 Scratch / Dig | A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 20 / 10 indicates the average diameter of the digs to be .10 mm and the average length of a scratch is .20 mm. | ||
40-20 Scratch / Dig | A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 40 / 20 indicates the average diameter of the digs to be .20 mm and the average length of a scratch is .40 mm. | ||
60-40 Scratch / Dig | A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 60 / 40 indicates the average diameter of the digs to be .40 mm and the average length of a scratch is .60 mm. | ||
80-50 Scratch / Dig | A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 80 / 50 indicates the average diameter of the digs to be .50 mm and the average length of a scratch is .80 mm. | ||
Other | Any other scratch / dig surface quality rating. | ||
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. | ||