INSTALLATION TOOL ( Compatible sizes: 8 – 32 UNC, 8 – 36 UNF, M4 x 0.7 METRIC) - ID: 401524-87010. These combination tools can be used to both install a helical ...

Thorlabs offers couplers, caps, and tube covers compatible with our C-Mount CMOS cameras, camera lenses, and extension tubes. These can be used to maintain a light-tight optical path in systems that use our C-Mount extension tubes.

Its primary function is to further magnify the image produced by the objective lens. Ocular lenses are often interchangeable, allowing users to customize their ...

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C-Mount to EF

The lens cap can be placed on an internally C-mount threaded component by squeezing the protruding edge of the cap, inserting the back of the cap into the threads, and then releasing the cap. To avoid deforming the cap, be sure to squeeze the protruding edge when removing it. Avoid using these caps in high heat environments as the cap can deform; use at temperatures between 0 °C to 40 °C for best results.

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The eyes are particularly sensitive to thermal effects. Suitable protective goggles can protect the eyes against excessive exposure to infrared radiation.

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C-MountAdapterThorlabs

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EMountto C-MountAdapter

Adverse effects are particularly likely if the temperature increase and exposure time exceed critical limits. Excessive exposure can result in damage or even burns. In general, thermal burden can lead to disturbances in the heat balance of the entire organism.

These C-Mount Caps are designed to be used with our CMOS cameras, camera lenses, and other C-Mount-threaded (1.00" -32) components. The CMCP1 features internal C-Mount threading while the CMCP2 features external C-Mount threading. Each of these caps is made from black-anodized aluminum and has a knurled edge for secure hand tightening.

FMountto C-MountAdapter

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The SM1B3 and SM2B45 nitrile rubber bellows are designed to seal the gap between Ø1" and Ø2" lens tubes, respectively, and maintain a light-tight path. The SM1B3 features a 1.06" inner diameter that stretches over Ø1" lens tubes with either internal or external threads, and is adjustable in length from 1.50" to 8.66". The SM2B45 features a 2.05" inner diameter that stretches over Ø2" lens tubes with either internal or external threads, and is adjustable in length from 1.26" to 4.92". The stiff rubber construction ensures that the bellows do not reduce the clear aperture of the lens tube system while being compressed or stretched. These bellows can be used in temperatures from -30 to 100 °C.

C-Mount Lens

The SC600 and SC1800RL Aluminum Lens Tube Covers can be easily cut to custom lengths using our SC1K Tool Kit, pictured below. This kit contains a tubing cutter and de-burring tool, jig, and pliers, allowing the user to cut the aluminum covers and then crimp the edges to form a light press fit. These lens tube covers, sold at the bottom of this page, can be cut to a desired length up to 1828.8 mm (for the unanodized aluminum version) or 609.6 mm (for the anodized aluminum version).

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C-mount camera

Note: While soap and water is recommended to clean the SM1B3 and SM2B45, isopropyl alcohol may be used in moderate amounts as a cleaning agent. Acetone is not recommended, as it will cause damage to the nitrile rubber.

Each coupler features a black silicone gasket along the clamping section to provide light-tight coupling of lens tubes (see photos to the right). Lens tubes can be clamped with either internal or external threads facing out and at any position along the length of the coupler as long as there are at least 6 mm of the tube inside the clamp.

The most powerful natural source of infrared radiation is the sun. Even in antiquity, the sun's "thermal radiation" was used to relieve a variety of complaints. By virtue of its beneficial effects, artificially generated infrared radiation therefore enjoys widespread applications in medicine and the wellness sector.

However, water has an absorption minimum in the red region of visible light as well as in the adjacent infrared region of the spectrum (short-wavelength IR-A). This explains the relatively large penetration depth of IR-A radiation (780–1,400 nanometres), which can penetrate up to some 5 millimetres into the skin, allowing it to reach the hypodermis and act on it directly. In general, the shorter the wavelength of infrared radiation, the greater the penetration depth. IR-C (3,000 nanometres – 1 millimetre) and IR-B (1,400–3,000 nanometres) are absorbed in the upper layer of skin, the epidermis, which is the only layer on which they have a direct effect. The thermal effects of IR-A radiation are spread over a larger volume than that of IR-B and IR-C radiation, but indirect heat conduction allows the temperature increase to affect deeper layers as well.

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The SC1L24 lens tube cover is designed to fit over our C-Mount extension tubes or SM1 (Ø1") lens tubes. They can be used to span the gap between any two fixed lens tubes, thereby enclosing the light path in an optical setup. These plastic covers are easy to slip on and off and are sold in 24" lengths, which can be easily cut to the desired length by the end user.

C-Mount to M42Adapter

The SC600 and SC1800RL Aluminum Lens Tube Covers are designed to fit over SM1 (Ø1") lens tubes and are made from anodized and unanodized aluminum, respectively. These non-flammable covers can be easily cut to custom lengths using our SC1K Tool Kit. This kit contains a tubing cutter and de-burring tool, jig, and pliers, allowing the user to cut the aluminum covers and then crimp the edges to form a light press fit. For instructions on how to use these tools to cut and crimp the tubing to the desired length, please see the Cutting Tutorial tab at the top of the page.

These tube covers can be post-mounted using our C127RC(/M) Slip Ring or C127TC Tube Clamp. It is also possible to mount these to 30 mm cage components with 4-40 mounting taps using our C128CC Adapter Clamp (each sold below).

Please note that these lens tube covers are not light tight. Additionally, their plastic construction makes them unsuitable for high-power laser applications.

The CMT2 and CMT10 externally threaded couplers are designed for joining internally C-Mount-threaded components. These feature external threads along the entire length of the part, allowing the relative position and rotation of a camera and lens to be adjusted. Each coupler ships with two CMNT Locking Rings, which can be tightened by hand to secure the attached components. Additional locking rings can be purchased separately to limit the external thread depth of any C-Mount-threaded components. The use of multiple locking rings allows lens tubes to be locked independently, such as when using crossed polarizers (see the video above).

The CMT1 is an internally C-Mount-threaded coupler for joining two externally threaded C-Mount (1.00"-32) components. Its length of 0.35" is designed for direct mating of two C-Mount Extension Tubes.

Heat and pain receptors are primarily located in the upper layer of the dermis, just beneath the epidermis, and act as the body's warning and protection system. They are less sensitive to IR-A radiation than to IR-C and IR-B radiation, which acts near the surface and on a smaller volume. This might well be the therapeutic intention in medical applications that are designed to produce greater warming of deeper regions. However, this factor must be taken into account in any application of infrared radiation.

c-mountadapterfor microscope

These Lens Tube Couplers are flexure-clamping sleeves that can hold any Ø1" lens tube, C-Mount extension tube, or other Ø1.2" outer diameter cylindrical object. A lens tube can be slid into each end of the coupler and secured by tightening the two 5/64" (2 mm) hex screws on the side of the sleeve.

When infrared radiation strikes biological tissue, it causes molecules to vibrate, producing heat and causing the temperature to rise. As human tissue is largely made up of water, the absorption capacity of water for the various wavelengths of incident infrared radiation plays a key role in determining the penetration depth and effects of the radiation.

For applications where it is difficult to reach the locking ring by hand, we offer the CMNT1 Slotted Locking Ring and SPW502 Spanner Wrench. This locking ring contains slots for the 1¼" end of the spanner wrench.

The CMEC2 plastic dust cap snaps onto internally C-Mount-threaded (1.00"-32) components, such as our CMOS cameras and C-mount extension tubes. By sealing off the end of C-Mount camera accessory or lens tube, this cap helps to protect optics against dust and debris while not in active use. The CMEC2 cap has an outer diameter of 30.5 mm (1.2").

Infrared radiation can promote local blood circulation and reduce muscle tension. Examples of traditional medical applications of infrared radiation include the relief of muscle pain and tension, as well as the treatment of autoimmune diseases or wound-healing disorders. However, the question of whether it is sensible to treat an illness or complaint with heat, or whether it may in fact be harmful to do so, must always be assessed by a doctor on a case-by-case basis.

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