30mm Rubber Eye Cups, Microscope Eye Guards (Pair) Reviews

4.8 Rating 5 Reviews
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These rubber microscope eye guards have an inner diameter of 30mm (1.18 inch) mounting size.The eye guards stretch slightly by 1-2 mm, to fit eyepieces with an outer diameter of approximately 30mm (1.18 inch).The inner lip (6mm, 0.24 inch) holds the eye guard in place to prevent it from sliding down on the eyepieces.They are foldable for different applications. One pair of eye guards contains 2 pieces.Please measure the outer diameter of your eyepiece. Other sizes are available for eyepieces of different outer diameters.The high quality rubber provides gentle contact with the eyes.Eyeguards provide an extra protective layer between the microscope eyepieces and the user. Eye guards provide comfort and eye relief for long viewing sessions. Helps protect your eyes from stray light in the working environment.Quick OverviewEye Guard Mount Size:
Dia. 30x6mm. SZ02013911 30mm Eye Guards, Foldable (Pair)Eye GuardEye Guard InstallationIndependent Eye GuardEye Guard Mount Size Dia. 30x6mmFoldable Eye GuardYesMaterialRubberColorBlackNet Weight0.007kg (0.015lbs)Dimensions Dia. 32x18mm ( Dia. 1.259x0.709 in. ) 
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Technical InfoInstructionsEyepieceClose ΛEyepiece is also called ocular.
Eyepiece is a visual optical device that is used to observe an image formed by an objective lens after magnification. Eyepiece can magnify the real image obtained by the magnification of the objective lens to form a clear and erect virtual image at the least distance of distinct vision (LDDV). For aberration, eyepiece is usually composed of several lenses that correct the residual aberrations produced during imaging by the objective lens. Usually, eyepiece has a relatively larger field of view and angular magnification.
The eyepiece is provided with a diaphragm in the middle of the upper and lower lenses, or at the lower end of the lower lens, wherein micrometer, reticle, pointer and other accessories are mounted.
On the eyepiece there is engraved with the following marks: eyepiece type, magnification, field of view number, and the like. For example, eyepiece is engraved with PL10X/22; PL represents plane eyepiece, or flat-field eyepiece, 10X is the magnification, 22 represents the field of view, and the glasses mark represents high eyepoint eyepiece, and C represents compensating eyepiece. Generally, the outer diameter of the eyepiece of a compound microscope is 23.2 mm, and stereo microscope can have a much larger field of view diameter because of its low magnification, so the outer diameter is mostly 30 mm (or 30.5 mm).
The resolution capability of the microscope is determined by the numerical aperture of the objective lens, while the eyepiece plays only the magnification role. Therefore, for structures and details that cannot be distinguished by the objective lens, the eyepiece still cannot distinguish even if it is magnified again. Independent Eye GuardClose ΛThe main function of the eye guard is to block the ambient stray light, which makes it more clearer when observing through the eyepiece. In addition, the height of the eye guard is basically the eyepoint exit pupil distance of the eyepiece, and when the eye is close to the eye guard, it is the exact position for clear imaging.PackagingClose ΛAfter unpacking, carefully inspect the various random accessories and parts in the package to avoid omissions. In order to save space and ensure safety of components, some components will be placed outside the inner packaging box, so be careful of their inspection. For special packaging, it is generally after opening the box, all packaging boxes, protective foam, plastic bags should be kept for a period of time. If there is a problem during the return period, you can return or exchange the original. After the return period (usually 10-30 days, according to the manufacturer’s Instruction of Terms of Service), these packaging boxes may be disposed of if there is no problem.

About Boli Optics:

Boli Optics Microscope Supplier sells professional microscopes, microscope accessories, and magnifying lamps. We offer parts and accessories compatible with Leica, Olympus, Nikon, and Zeiss, and more. We supply research laboratories, medical centers, universities, industrial manufactures, factories, and more. Our engineers and technicians provide technical support and design & manufacture custom microscope products for your applications. Our products are manufactured under ISO 9001 quality control standards. We also provide OEM service. Since 1994, our talented team has been working in the optics industry and serving our customers whole-heartedly. Based in Southern California, we offer fast, same day shipping from our local warehouses.

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Email:

sales@bolioptics.com

Location:

8762 Lanyard Court,
Rancho Cucamonga
California
91730

The eyeguards are of good quality, I'm using them for a telescope eyepiece, the fit is usable, but not ideal, but I knew that going in. Boli responded promptly to my query, sent the product quickly. I would give them 5 stars for service and shipping, but this is a rating of the eyeguard itself. I was glad I could find something, the manufacturer does not offer replacement eyeguards and the ones the eyepieces come with are quite thin.
Helpful Report
Posted 4 weeks ago
Dear Steven, Thank you so much for your positive review of our 30mm Rubber Eye Cups, Microscope Eye Guards! We are glad to hear that you are satisfied with the quality of the eyeguards, and that you were happy with our service and shipping speed. We are glad that we could provide you with a suitable alternative! Best regards, BoliOptics Team
Posted 3 weeks ago
They install in a matter 2 minutes. They work as intended blocking extraneous light from entering the eyepieces. Construction quality is excellent. Another great purchase from Bolioptics!
Helpful Report
Posted 10 months ago
Hello Bruce, Thank you so much for your 5 star rating of our 30mm Rubber Eye Cups. We are so happy to hear that their fast installation and high quality light blocking performance suited your needs. We are delighted that you are a loyal customer of BoliOptics, and thank you for your ongoing support! Best wishes, BoliOptics Team.
Posted 10 months ago
These eye guards were used for a pair of vintage binoculars, they fit nicely allowing the item to be used better. I am happy to find bolioptics as a resource and will be my first puplace to search for future needs.
Helpful Report
Posted 1 year ago
Thank you so much for your review of the 30mm Rubber Eye Cups, Microscope Eye Guards. We're glad that the eye guards fit nicely on your binoculars and you were able to use it better. Best wishes, BoliOptics Team.
Posted 1 year ago
They worked perfectly to retrofit the damaged eyecups on my old pentax binoculars.
Helpful Report
Posted 2 years ago
Hello! Thank you so much for your review of our 30mm Rubber Eye Cups, Microscope Eye Guards, Foldable (Pair). We are glad to have helped provide the perfect size eye guards to fit your old Pentax Binoculars. Best wishes, BoliOptics Team.
Posted 2 years ago
The fit well and are comfortable.
Helpful Report
Posted 2 years ago
Hello Lawrence, We are so glad to hear you were able to find our rubber eye cups to fit well with your application. Stay safe! BoliOptics Team
Posted 2 years ago