{"product_id":"four-pigments-of-sight-plate-098-physics-poster","title":"Four Pigments of Sight – Plate 098 Physics Poster","description":"\u003cp\u003ePlate 98 speaks for itself: \u003cem\u003e“Colour is a vote among three cone pigments.”\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eThe Physics\u003c\/h3\u003e\u003cp\u003eThe human retina has four visual pigments: rhodopsin in rods and three cone opsins. Each cell's response is its pigment's sensitivity weighted by the incoming spectrum.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eR = ∫ S(λ) s(λ) dλ\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eR: photoreceptor response, arbitrary units\u003c\/li\u003e\n\u003cli\u003eS(λ): spectral power of the light, W m⁻³\u003c\/li\u003e\n\u003cli\u003es(λ): pigment spectral sensitivity, dimensionless\u003c\/li\u003e\n\u003cli\u003eλ: wavelength, m\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eMeasured by microspectrophotometry. Bowmaker \u0026amp; Dartnall, 1980.\u003c\/p\u003e\u003ch3\u003eSources\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJ. K. Bowmaker, H. J. A. Dartnall, J. Physiol. 298, 501 (1980).\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eOn the poster\u003c\/h3\u003e\u003cp\u003ePlate 098, “Four Pigments of Sight”: the pixel-art plate with its slogan “Colour is a vote among three cone pigments.”, the key equation and the facts panel shown above. Pixelated Physics. Physics. Personified.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"9'' x 12\" (Vertical) \/ Matte","offer_id":50962750832743,"sku":"26286558258747767812","price":19.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Fine Art","offer_id":50962750865511,"sku":"54686484280783842731","price":29.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Semi Glossy","offer_id":50962750898279,"sku":"12139213749426231303","price":19.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Fine Art","offer_id":50962750931047,"sku":"13676846994236913574","price":44.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Semi Glossy","offer_id":50962750963815,"sku":"21588993752250464254","price":29.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Matte","offer_id":50962750996583,"sku":"33500890992423442692","price":29.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Matte","offer_id":50962751029351,"sku":"16289170458085360721","price":69.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Fine Art","offer_id":50962751062119,"sku":"37452015847024299501","price":119.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Semi Glossy","offer_id":50962751094887,"sku":"20970130712544268375","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/10351624318373950076_2048.jpg?v=1793638053","url":"https:\/\/pixelatedphysics.com\/zh-hans\/products\/four-pigments-of-sight-plate-098-physics-poster","provider":"Pixelated Physics","version":"1.0","type":"link"}