Product Description
The Clearview Transparent heater allows continuous high definition operation of device monitors in low temperature environments. Optically clear heaters are typically used in applications that require a high degree of light transmission.
Specifications
- Highest light transmission 1 (1; 90% (ref. ITO 1(1, 70/80)
- Virtually no physical size limitation.
- Ultra fine wire (.0009 dia.) and thin laminated construction (.006 .010 thick).
- Lead configurations include: PCB pins, crimp terminals, solder tabs. 20 30 gauge TFE leads.
- 3D formed shapes to fit geometric objects.
- Integrated transparent RTD temperature sensors available
- Removable liner adhesive system available.
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Broad design resistance range (various alloy resistivity)
(more design flexibility vs. ITO) - Manufactured in class 10,000 clean room
Full product specifications available in datasheet linked above.
Applications
Optically clear heaters are ideal for applications that require a high degree of light transmission, such as LCD screens, touch screens, hand held scanners and imagers.
- Aviation and aerospace
- Security apparatus
- Satellites and telecom
- Industrial applications
- Refrigeration
Overview
Clearview transparent heating elements are an optically clear variation of our wire wound heater that provides superior light transfer with higher durability than comparable technologies.
The wire wound design brings high heating efficiency and quick thermal response with minimal power consumption. This makes Clearview ideal for applications such as computers, battery powered hand scanners, and touch screens.
Optically clear heaters are typically used in applications that require a high degree of light transmission. Clearviews ultra-fine wire construction gives high optical clarity and ensures optimal light transmission for scanning and imaging applications.
Clearview provides controlled, direct heat to displays, lenses and clear panels, allowing continuous high definition operation of device monitors in low temperature environments. Displays and touch screens remain usable in cold, high humidity/low dew point environments and locations where ambient temperature can change quickly.
Engineering services and consultation are available on every custom heating element order. Contact a specialist today for details.
Practical product
winter service vehicle
Practical product
Technical data of transparent film heater for helmet
Abstract
We demonstrate a new concept for the fabrication of flexible transparent thin film heaters based on silver nanowires. Thanks to the intrinsic properties of random networks of metallic nanowires, it is possible to combine bendability, transparency and high heating performances at low voltage, typically below 12 V which is of interest for many applications. This is currently not possible with transparent conductive oxide technologies, and it compares well with similar devices fabricated with carbon nanotubes or graphene. We present experiments on glass and poly(ethylene naphthalate) (PEN) substrates (with thicknesses of 125 μm and extremely thin 1.3 μm) with excellent heating performances. We point out that the amount of silver necessary to realize the transparent heaters is very low and we also present preliminary results showing that this material can be efficiently used to fabricate photochromic displays. To our knowledge, this is the first report of metallic nanowire-based transparent thin film heaters. We think these results could be a useful approach for the engineering of highly flexible and transparent heaters which are not attainable by existing processes.
RESIST EQUATIONS:
For the final manufacture of a heater, the resistance for the heater (ohms) is converted to resistivity (*ohms/sq.
This value is a function of the length of the heater (L) and the width (W) as it relates to the total resistance. L is the
size between bus bars.
This value is a function of the length of the heater (L) and the width (W) as it relates to the total resistance. L is the
size between bus bars.
Optical transparent heater
Fullchance’s Transparent Heaters for the defrosting and maintaining LCD displays at optimum operating temperatures for screen response or the defrosting and maintaining windows from moisture. Fullchance has developed a clear transparent heater circuit with a rugged busbar termination that can incorporated with our range of contrast enhancement and EMI shielded filters.
Specification: The Fullchance Transparent Heaters are either unlaminated or fully laminated glass filters with an Indium Tin Oxide (ITO) coating of 12 ohms/sq. This is an optimum coating density to provide excellent heating performance with good optical clarity compared to the highly reflective thin resistive wires typically used to provide heat.
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Extensive testing and military qualification has proved the Fullchance transparent heater to maintain a LCD at 20C with an outside temperature of -50C and 3’C/minute temperature gradient.
Termination Method: Highly rugged proprietary insulated busbar and wire termination along two opposing edges.
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Applications:
Transparent heaters are used in a board range of applications including: public information displays, material handling equipment, military ground based vehicles, naval flight deck equipment, control panels on heavy agricultural and earth moving equipment, periscopes and off-shore oil platforms.
Product Range:
Un-laminated glass transparent heater:
• Transmittance 550nm 89% • Thickness 1.1mm only • Plain float finish only • Max size 400 x 500mm
Laminated glass transparent heater:
• The ITO surface is located within the lamination for ruggedization and additional layers incorporated for mechanical & impact resistance • Thickness 2.5mm upwards • Finish plain, etch non-glare and anti-reflective coating
Additional elements for Multi-function
windows with transparent heater: • EmiClare EMI shielding • Contrast enhancement • Etch non-glare and anti-reflective coated front surface finish • Silk screen printing |
High Transmission Thin Film LCD Heaters Available on Most LCDs
LCDs must operate in critical applications with no room for failure. The need for heaters in temperature controlled LCD displays is becoming more prevalent than ever. In order to meet this need Fullchance has developed a system to add thin film heaters to most Fullchance DiamondVue, Xtreme and CrystalVue displays.
Heaters are available in a variety of materials and configurations to fit your application requirements.
Key Heater features:
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High optical transparency and improved contrast
- Precise electrical resistivity
- Low reflectance
- Environmental stability
- Resists thermal shock
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Optional termination methods
- Attached lead wire
- Indium solder bus bar
- Rapid system startup without loss of display visibility
- Low power consumption
- Design flexibility
Spectral Characteristics
- Standard ITO Heater Coating - Nominal: 12-20 W /sq
- Tolerance: ± 20%
- Reflectance: £ 0.75% average from 425 to 675nm at 10° incidence
- Transmittance: ³ 97% average from 425 to 675nm at normal incidence, exclusive of substrate absorption and second surface reflectance
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Overall Transmittance: ³ 95% average from 425 to 675nm with second side AR coated
- ³ 91% average from 425 to 675nm with second side uncoated
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Optional Coating on second side
- Reflectance: £ 0.6% absolute from 430 to 650nm at 10° incidence; £ 0.3% average at 10° incidence
Durable heating system meets the following requirements
- Humidity Resistance > 24 hours (MIL-C-675)
- Adhesion: Quick tape test (MIL-M-13508)
- Abrasion Resistance: > 40-rub eraser test (MIL-C-675)
- Solubility Resistance: > 24 hours immersion in NaCl solution (MIL-C-675)
- Temperature resistance: > 4 hours at -54°C to 71°C
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