{"product_id":"shelyak-pf0023","title":"Shelyak Handheld Spectro","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConvenient Dimensions: 115 x 25mm\u003c\/li\u003e\n\u003cli\u003eVisual Use Only for Bright Light Sources\u003c\/li\u003e\n\u003cli\u003eIdeal for Educational and Classroom Use\u003c\/li\u003e\n\u003cli\u003eReveals Emission and Absorption Spectra\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eHandheld Spectro\u003c\/h2\u003e\n\u003cp\u003eThe Handheld Spectro reveals the hidden fingerprints of light in a compact, easy-to-use 115 x 25mm instrument designed for direct visual observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eExploring Light with a 115mm Handheld Spectroscope\u003c\/h3\u003e\n\u003cp\u003eThis simple yet effective tool makes the physics of light tangible. By looking through the eyepiece, you can split the light from any bright source into its constituent colors, revealing a unique spectral signature. It's a fun, engaging way to see the science behind everyday objects.\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for educational settings and curious minds, this spectroscope is intended for terrestrial sources only. Its primary limitation is that it is not sensitive enough for astronomical targets. It excels, however, at demonstrating core scientific principles in a classroom or at home.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassroom Science:\u003c\/strong\u003e Use it to show the difference between the continuous spectrum of an incandescent bulb and the sharp emission lines of a neon or mercury lamp.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEveryday Exploration:\u003c\/strong\u003e Analyze the light from flames, streetlights, or LCD screens to see how their spectra differ.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSunlight Analysis:\u003c\/strong\u003e Observe the solar spectrum (via indirect light, never look directly at the Sun) to see the famous Fraunhofer absorption lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat can I see with the Handheld Spectro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Handheld Spectro allows you to see the color spectrum of bright, terrestrial light sources. You can observe the continuous rainbow from sunlight or an incandescent bulb, or the distinct, bright emission lines from sources like neon lamps, streetlights, and flames. It reveals the unique \"fingerprint\" of each light source.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Handheld Spectro to see the spectrum of the Sun?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but with extreme caution. \u003cstrong\u003eNever look directly at the Sun through any optical instrument.\u003c\/strong\u003e To safely observe the solar spectrum, point the spectroscope at a white surface illuminated by bright sunlight, such as a piece of paper on the ground. This will allow you to see the Sun's continuous spectrum crossed by dark Fraunhofer absorption lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the spectrum of a fluorescent lamp look like with the Handheld Spectro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA fluorescent lamp will show a unique spectrum. Instead of a smooth, continuous rainbow, you will see several sharp, bright emission lines (often green and blue from mercury vapor) superimposed on a fainter continuous background. This is distinctly different from the spectrum of an incandescent bulb.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy isn't the Handheld Spectro suitable for observing stars?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is a simple, visual-only instrument designed for bright light sources. Stars, while bright to our eyes, are point sources of light that are far too faint for a basic handheld spectroscope to gather enough light to produce a visible spectrum. Astronomical spectroscopy requires a telescope and more sensitive, specialized equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Handheld Spectro a good tool for a classroom science lesson?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. It is an excellent and affordable tool for educational purposes. It provides a direct, hands-on demonstration of light properties, emission vs. absorption spectra, and how different elements produce different spectral signatures. It is perfect for physics or chemistry classes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Handheld Spectro require any batteries or power?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Handheld Spectro is a purely passive optical device. It contains a diffraction grating that splits light and requires no power source to operate, making it incredibly simple and reliable for use anywhere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e115 x 25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended Use\u003c\/td\u003e\n\u003ctd\u003eVisual observation of bright terrestrial light sources\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAstronomical Use\u003c\/td\u003e\n\u003ctd\u003eNot suitable for stars or faint objects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHandheld Spectroscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/shelyak-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eShelyak 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":52943038710045,"sku":"SHK-PF0023","price":186.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak-Handheld-Spectro-1_bfa421ec-c781-4feb-9020-bbd8b9478fba.jpg?v=1789616086","url":"https:\/\/davidastro.com\/fr\/products\/shelyak-pf0023","provider":"David Astro","version":"1.0","type":"link"}