X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:subject:message-id:in-reply-to:references:mime-version :content-type:content-transfer-encoding; bh=S6gqZ7Uq+TmekqBgig4DKLpxKpHVmHOwPR/cqK9h1Lg=; b=v2DF+3so1+Uu4WG2lXMFn+XX51HQokovs9qaghnBbY15533OEw9shZWPxtikW6x3r9 xKrJ1VJrj18uUydHb5VVoZyfLKHSPV31EhIz8Xe8bqbkfAnenYToxBKC4GSlp4TCjOy7 +ZGtX7bqqJV8zvWTUseZjpdajQ33hQn1NBSkQdE1grj29SiKksJegCk3XEFriEODjCAZ oWzUSew0eLSpj/GyNgFlVjCaQ311B5BSbeU14uPJjIHim1HGBNo1qCpZJp0hffMfWIrh RM+CjSrTTrWLyVn43jRkstVtdn4hc9EWgMqTUJOW6+zn5p3TFtaOQARxnoSoTzwi9SbS cTHg== X-Received: by 10.194.173.72 with SMTP id bi8mr32654960wjc.100.1442265861347; Mon, 14 Sep 2015 14:24:21 -0700 (PDT) Date: Mon, 14 Sep 2015 23:24:17 +0200 From: "Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" To: geda-user AT delorie DOT com Subject: Re: [geda-user] 5630 LED footprint Message-Id: <20150914232417.8d6a413587cbc43fd82769b9@gmail.com> In-Reply-To: <6A239E0B-0226-4BD2-A648-92B559AF17AC@noqsi.com> References: <20150910201416 DOT GG16766 AT fi DOT muni DOT cz> <20150910234211 DOT e718beb2aa1655d22382c8a6 AT gmail DOT com> <201509102207 DOT t8AM7GOh013740 AT envy DOT delorie DOT com> <20150914131629 DOT GB6914 AT cuci DOT nl> <4D7DCB5F-5703-4EAB-ADFD-84D7E8A87764 AT noqsi DOT com> <20150914213541 DOT aac6d90c6efa8b40da3ab0d2 AT gmail DOT com> <20150914200410 DOT GA14470 AT recycle DOT lbl DOT gov> <6A239E0B-0226-4BD2-A648-92B559AF17AC AT noqsi DOT com> X-Mailer: Sylpheed 3.5.0beta1 (GTK+ 2.24.25; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reply-To: geda-user AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: geda-user AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk > But aluminum heat sink makers often dye their anodized surfaces with an emissive substance. It’s often also black in the visible, but, of course, it’s the infrared that counts.Radiation helps. I guess these heat sinks also are infrared black.