Design and Analysis of LED Surgical Operating Lamp with Adjustable Focus

$113.00 plus tax (Refund Policy)

Buy Article:

Abstract:

Due to the high efficiency, LED (Light Emitting Diode) is now considered to be a good light source of the surgical operating lamp. The usage of halogen light source in traditional surgical operating lamp has disadvantages such as big spot size and low efficiency, and most importantly, the high intensity of the infrared ray which would cause the illness of both Doctors and patients. It is found that during the process of surgery, illuminations for different wound depth and light field area are required, therefore, the adjustable focus or spot size of surgical operating lamp could offer better operating qualities without relocate the operating lamp. In this research we design a LED surgical operating lamp which is able to change focus by rotating the lens of the surgical light. We analyze the ray paths and generate corresponding lens profile using Tailored freeform method. After analysis, we design the lens arrangement according to projection point required by using the edge ray principle, which could redirect the direction of the rays when rotating the lens. This ray redirection can change the focus point of the light. Then, together with LED model, we simulate and analyze the overall lighting distribution. The final design meets both the objective of focus-changing and specifications of surgical operating lamp in IEC-60601-2-41.

Keywords: ADJUSTABLE FOCUS; LED; LENS; SURGICAL OPERATION LAMP

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/sl.2012.2279

Publication date: May 1, 2012

More about this publication?
  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • ingentaconnect is not responsible for the content or availability of external websites
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more