0000004084 00000 n This site is home to The Evaluator – LIA's Web-based Laser Safety Hazard Analysis System. 0000003198 00000 n 0000001764 00000 n 0000009906 00000 n 0000001560 00000 n 0000006776 00000 n Now calculate the power density of the beam by dividing the power by the area of the beam. For example, a Gentec-EO laser power meter can be used to measure average power. 0000005406 00000 n Any reproduction, retransmission, republication, or other use of all or part of any images or content found on this site is expressly prohibited, unless prior written permission has been granted by LIA. 0000004063 00000 n
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We give free consultations and Optical Density calculations.
Laser-Induced Damage Threshold (LIDT) is frequently expressed in units of laser peak fluence or laser peak power density. 0000013832 00000 n
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H�|T�n�0}�W���l�xm��&�m�"���7�Ciw�6)�� This site is home to The Evaluator – LIA's Web-based Laser Safety Hazard Analysis System. 0000012985 00000 n 0000007762 00000 n 0000006092 00000 n 0000005385 00000 n All Phillips Safety laser glasses meet or exceed the requirements of ANSI Z136.1.
0000009151 00000 n ���ji�gΎ��cȐt�Imx�x��x��ޮE��^���뺐��4NH�����T>C�/:A�Ԟ�gv��B�K^V±��N�LIi)����}�e�$�x��E�*Ӏ�7L�jq,`�>a@�1U�:�_l�ywp��-�nO�y�P�^��(�j���W[�B�E��uyiل*5{�%�j6�^�!Es�8�zM�e�OWl:����fR!���}s��х��l�Q��R e��l��Gwж��������kр��'�1Ҹ��)F^Z }^����n�{��,*X������q��sk��A�Rю��A��A��Y����CqF��:��8D��υc��˻���U6�������fk���/��H��" ?��r|K/�R�����V�f*>�m�j[M���B�p This can be done with the help of the below formula: where, LPD = Laser Power Density [W/cm 2] Pasternack's Power Density Calculator is designed to give the power density, in Watts per square meter, at a given distance, output power and antenna gain. 0000013811 00000 n 0000006113 00000 n Pulsed laser : Pulse Energy (Joules) = Average Power (Watts) / Repetition Rate (Hertz) Let’s put some real values in there and assume that you are working with a laser that has a fixed 200 W output and a repetition rate that can be tuned from 20 Hz to 1 kHz. 0000013449 00000 n 0000012817 00000 n Power Meters & Detectors Calculating Power Density – A Shortcut It is often necessary to calculate the power density (Power/Area) of a laser beam (for example, when trying to determine whether a beam will damage an optic or detector). 0000012642 00000 n Disclaimer: All information and material posted on this Website are subject to copyrights owned by the Laser Institute of America (LIA). For pulsed lasers in the range of µsec to nsec, the energy density varies as a function of the square root of the time domain. 0000007741 00000 n � ��' endstream endobj 49 0 obj 118 endobj 5 0 obj << /Type /Page /Parent 1 0 R /Resources 6 0 R /Contents [ 15 0 R 19 0 R 21 0 R 28 0 R 30 0 R 32 0 R 42 0 R 44 0 R ] /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 6 0 obj << /ProcSet [ /PDF /Text /ImageC ] /Font << /F2 23 0 R /F4 37 0 R /F6 36 0 R /TT2 11 0 R /TT4 7 0 R /TT6 9 0 R /TT8 17 0 R /TT10 26 0 R >> /XObject << /Im1 45 0 R /Im2 46 0 R >> /ExtGState << /GS1 47 0 R >> /ColorSpace << /Cs5 13 0 R >> >> endobj 7 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 150 /Widths [ 278 0 0 556 0 0 722 0 0 0 0 0 0 0 0 0 0 0 556 0 0 0 0 0 0 0 0 0 0 0 0 0 0 722 0 722 722 0 0 0 0 0 0 0 0 833 722 0 667 0 0 667 611 0 0 0 0 0 0 0 0 0 0 0 0 556 0 556 0 556 0 611 611 278 0 0 278 0 611 611 0 0 389 556 333 611 0 778 0 556 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 556 ] /Encoding /WinAnsiEncoding /BaseFont /Arial-BoldMT /FontDescriptor 12 0 R >> endobj 8 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 0 /Descent -211 /Flags 32 /FontBBox [ -665 -325 2000 1006 ] /FontName /ArialMT /ItalicAngle 0 /StemV 0 >> endobj 9 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 146 /Widths [ 278 278 0 0 0 889 0 0 333 333 0 0 278 333 278 278 556 556 556 0 556 556 0 556 0 0 278 0 0 584 0 0 0 667 0 0 722 0 611 778 722 278 0 0 0 0 0 778 667 0 0 667 611 722 0 944 0 0 0 0 0 0 0 0 0 556 556 500 556 556 278 556 556 222 222 500 222 833 556 556 556 0 333 500 278 556 500 722 500 500 500 0 0 0 584 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 222 ] /Encoding /WinAnsiEncoding /BaseFont /ArialMT /FontDescriptor 8 0 R >> endobj 10 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 0 /Descent -216 /Flags 34 /FontBBox [ -568 -307 2000 1007 ] /FontName /TimesNewRomanPSMT /ItalicAngle 0 /StemV 0 >> endobj 11 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 83 /Widths [ 250 0 0 0 0 0 0 0 0 0 0 0 0 333 0 278 500 500 500 0 500 0 0 500 0 0 0 0 0 0 0 0 0 0 667 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 556 ] /Encoding /WinAnsiEncoding /BaseFont /TimesNewRomanPSMT /FontDescriptor 10 0 R >> endobj 12 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 0 /Descent -211 /Flags 32 /FontBBox [ -628 -376 2000 1010 ] /FontName /Arial-BoldMT /ItalicAngle 0 /StemV 133 >> endobj 13 0 obj [ /CalRGB << /WhitePoint [ 0.9505 1 1.089 ] /Gamma [ 2.22221 2.22221 2.22221 ] /Matrix [ 0.4124 0.2126 0.0193 0.3576 0.71519 0.1192 0.1805 0.0722 0.9505 ] >> ] endobj 14 0 obj 665 endobj 15 0 obj << /Filter /FlateDecode /Length 14 0 R >> stream
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