page_title: Kamāl al-Dīn al-Fārisī
hierarchical_section_title: Kamāl al-Dīn al-Fārisī
context_page_description: Kamal al-Din Hasan ibn Ali ibn Hasan al-Farisi or Abu Hasan Muhammad ibn Hasan was a Persian Muslim scientist. He made two major contributions to science, one on optics, the other on number theory. Farisi was a pupil of the astronomer and mathematician Qutb al-Din al-Shirazi, who in turn was a pupil of Nasir al-Din Tusi.
  According to Encyclopædia Iranica, Kamal al-Din was the most prominent Persian author on optics.
context_section_description: Kamal al-Din Hasan ibn Ali ibn Hasan al-Farisi  or Abu Hasan Muhammad ibn Hasan (1267– 12 January 1319, long assumed to be 1320)) (Persian: كمال‌الدين فارسی‎) was a Persian Muslim scientist. He made two major contributions to science, one on optics, the other on number theory. Farisi was a pupil of the astronomer and mathematician Qutb al-Din al-Shirazi, who in turn was a pupil of Nasir al-Din Tusi.
  According to Encyclopædia Iranica, Kamal al-Din was the most prominent Persian author on optics.
caption: Kamal al-Din al-Farisi's autograph manuscript in Optics, Tanqih al-Manazir, 1309 A.D., Adilnor Collection.
exif: {"Image ImageDescription": "SONY DSC", "Image Make": "SONY", "Image Model": "DSLR-A100", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop 7.0", "Image DateTime": "2010:06:15 23:03:55", "Image YCbCrPositioning": "Centered", "Image PrintIM": "[80, 114, 105, 110, 116, 73, 77, 0, 48, 51, 48, 48, 0, 0, 0, 6, 0, 1, 0, 22, ... ]", "Image ExifOffset": "396", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1082", "Thumbnail JPEGInterchangeFormatLength": "5086", "EXIF ExposureTime": "1/60", "EXIF FNumber": "28/5", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "400", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2010:06:14 21:47:28", "EXIF DateTimeDigitized": "2010:06:14 21:47:28", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "8", "EXIF BrightnessValue": "387/100", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "217/50", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash fired, auto mode", "EXIF FocalLength": "26", "EXIF SubjectArea": "[960, 640, 163, 194]", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "1000", "EXIF ExifImageLength": "862", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "0", "EXIF FocalLengthIn35mmFilm": "39", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "Low gain up", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal"}